USR-GM3 User Guide - Jinan USR IOT Technology Limited
Contents
1. Jinan USR IOT Technology Limited 36 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 29 SOCKBSL query or set socket B long or short connection 30 SOCKALK query socket A connection status 31 SOCKBLK query socket B connection status 32 REGEN query or set register package type 33 REGTP query or set register package data type 34 REGID query or set register ID used for D2D gt 35 REGDT query or set register user defined data 36 REGSND query or set register package sending type 37 HEARTEN query or set enable disable heartbeat 38 HEARTDT query or set heartbeat data 39 HEARTTP query or set heartbeat package sending type 40 HEARTTM query or set heartbeat time HTTPI ters comimr 41 HTPTP query or set HTTP request type 42 HTPURL query or set HTTP URL 43 HTPSV query or set HTTP server address and port 44 HTPHD query or set HTTP request head A Sg gk ep UMEN ER I 1 ters commands 45 DSTNUM query or set destination phone number 46 SMSEND send SMS message 1 AT H function help message format 9 query AT H CR CR LF help message CR LF CR LF OK CR LF gt parameter help message commands introduction 2 AT Z function restart gt format AT Z CR CR LF OK CR LF 3 ATE Jinan USR IOT Technology L2. 9 3 T4 Pim DeSCrIDUON cited edite eee ree elena ea eek Teel i atu tdm epis a 10 3 1 5 Outside Antenna 5 de emnt t e NG rhe ERE v ra Pe Rea eaae eR rear EN Eo Ga ng aa gadane 11 4 Module FUNCTIONS e E 12 4 17 Work MOG ici diia 12 4 1 1 Switching Work Mode ccccccsccsesscssesscsssscessescesesscsscsecsscssssecsesseseessesecssessssecsessecseseceeestesteaeeaseaeens 12 ANC A SR 13 4 13 EE TPD Functloti 3 irse e eee dh ee itae ntis 20 4 1 4 SMS Message Transmission essere tenente nnne nennen nete ener ennt 24 4 2 Register Package tec eie ond teni iier ied doli te heute 28 A MSS CMU OMe scx eec ete a 28 OAA Y a RENG E E E EA e NGE NHIEU DPI NT EA 28 4 3 Heart BeatPackage tete m MEE ti ek ee deena leiden 29 29 1 DDescripliOnE z ao niin 29 2 32 E p ec st e dr 30 AA DART uiuit a ab ana asa ni gan ata daa nan aa aan wa aaa aja atate iiti dee neon eden dea lee 31 C AN RSA I PP 31 442 Similar REO2241 escas mecnm emen baee RU 31 5 Parameters Setting asias 33 5 1 Operating AT command trier derent siii re iR ete toni ea deste ene e EUER e des EE EAS ERO 33 5bi2 AT Command Fotrmat teer di gettin elis aiibi tate i ad iTi aaa agan 34 5 3 AT Commlarid Set sun URBES eub ined URBS 36 Appendix A Contact e en tre LM P E 54 Appendix B Disclaitiet ene see eie qe drei aaa ead tales dees 54 Appendix C Upda
3. Welcome message USR GM3 V1 0 Besides customers need to configure socket A or socket B for network connection refer to Jinan USR IOT Technology Limited 19 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com chapter 4 1 2 3 After setting successful restart GM3 When connection is establishing send usr cnzZAT VER from network PortNum coms gt BaudR 1115200 DPaity NONE DataB E bit StopB fi bit Open r COMSettings _ COM port data receive Recv Options Add line return Receive s HEX Receive Pause Save Clear Receive to file Send Options Auto Checksum Auto Clear Input Data from file USR TCP232 Test RS232 to Ethernet Convert tester File F Options O Help H Network data receive usr cn VER V1 0 4 1 Protocol TCP Server h 2 Local host IP 115 28 232 174 3 Local host port 10000 Disconnect NetSettings 4 j Add line return Receive As HEX Receive Pause Save Clear Recv Options Receive to file r Send Options Auto Checksum Auto Clear Input Data from file Send As Hex Peers 528202112087 Send As Hex Send Bicycle Peers 115 28 232 1 12437 v Psal Rods Interval 1000 usr cn AT VER Interval 300 ms Load Clear 1 Load Reset Ready Send 15
4. Fixed Refer to the Sum of Baud Rate interpretation MSB data following table and Bits Parameters Exmaple1 55 AA 55 01 C2 00 83 46 115200 N 8 1 Exmaple2 55 AA 55 00 25 80 83 28 9600 N 8 1 Interpretation of bits parameters Bits Interpretation Value Description 00 Not Used f 01 Not Used 1 0 Data bits 10 7 11 8 0 1 2 Stop bits 1 2 0 disable 3 Enable disable parity 1 enable 00 ODD 5 4 Parity type l PSP 10 Not Used 11 Not Used 7 6 No defined 00 Not Used Jinan USR IOT Technology Limited 32 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 5 Parameters Setting Sending AT commands is the only way to set the parameters of GM3 module There are two kinds of commands basic AT commands and extended AT commands Basic AT commands are used to setting the running parameters of GM3 under SMS message transmission network transmission and HTTPD modes Extended AT commands are used to design new functions by customers About how to use extended AT command please refer to GM3 extended AT commands User Guide 5 1 Operating AT command When GM3 works in one of the three modes SMS message transmission network transmission or HTTPD mode You can get module into command mode by sending specific timing data to it then send commands to change module s running parameters If changing is done get module back to previous work mode Sending data to module AT ENTM ok Send
5. Floor 11 Building1 No 1166 Xinluo Street Gaoxin Distric Jinan Shandong 250101 China Tel 86 53 1 55507297 86 53 1 88826739 Web http www usriot com Support http h usriot com Email sales usr cn Appendix B Disclaimer This document provides information about USR GM3 modules this document does not grant any license to intellectual property rights Except the responsibility declared in the product sale clause USR does not assume any other responsibilities In addition USR does not make any warranties for the sale and use of this product including the suitability of the product for a particular purpose merchantability or fitness for any patent copyright or other intellectual property infringement etc USR may make changes to specifications and product descriptions without notice Appendix C Update History 2015 6 20 V1 0 basic version created 2015 6 20 1 0 6 fix some errors change reload pin function 2015 9 11 V1 0 7 increased use of setting software method END Jinan USR IOT Technology Limited 54 54 tec usr cn
6. Limited 6 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com gt In water industry USR GM3 is also plays a significant role in system of water set copy wa ter resource management and remote monitoring wireless communication of water pipe n etwork monitoring gt n Environmental protection USR GM3 module can be integrated into the on line monitori ng system of flue gas on line monitoring CEMS water quality online monitoring gt In the field of equipment maintenance Equipment maintenance field USR GM3 use in the system of equipment remote monitoring such as elevator monitoring air conditioning monitoring gt Other GPRS communication applications Jinan USR IOT Technology Limited 7154 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 3 Hardware 3 1 Pin Description 3 1 1 0utside View 3 1 2 Pin Assignment Top www usr cn ti op m 55 101201505000634 TS A input 3 4 4 2V UART to GPRS ET m m m a a a D M Jinan USR IOT Technology Limited 8 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com LxWxH 27 94x24x4 4 Unit mm HH ERE 25 40 27 94 Unit mm Jinan USR IOT Technology Limited 9 54 tec usr cn A USR IOT c S st i Be Honest Do Best USR GM3 User Manual www usriot com 3 1 4 Pin Description Note P for power I for inp
7. Recv 22 LE Ready Recv 0 4 1 3 HTTPD Function 4 1 3 1 Description HTTP Internet MELE data Ha Serial data server gt i eL Serial device ND Under this mode customer s serial device can request data from HTTP server via this module Module can also receive data from HTTP server analysis the data and transmit the Jinan USR IOT Technology Limited 20 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com data to customer s serial device Customers don t need to know the detail of communication just need some simple setting 4 1 3 2 Application Scenarios If customer want to request data from HTTP server and customer s serial device can t connect to Internet via a router But signal from base station is available so customer can use GM3 module to make this communication Customer just need to do some simple setting and send request data GM3 could get the result from HTTP server and analysis it to get the useful data send the data to serial device 4 1 3 3 Usage Note All the AT commands terminate with carriage return Ox0D we ignore it here About how to use AT commands please refer to chapter 5 We have one software for customers to use customers can get it from our website http www usriot com Download 248 html And we have one software for customers to do serial and network tests customers can get it from our website http ww
8. com 1 2 Transmission 1 Put SIM card into the socket on EVK connect COM1 to PC s serial port with cable 2 Open test software USR TCP232 Test set right serial port number and baud rate and open it As the following figure 3 Power up the EVK with DC 5V adapter then the POWER led will be on several seconds later the WORK led will twinkle and then GPRS LINKA led will be on d UsR GM3 V1 001985 eJ balak File Language Help ComHame COMZ v BaudRate 115200 v Parity Data Stop NONE y 8 1 v Flow NONE Close Serial Choose Work Mode Operation and Hints Network Transmission HTTPD Mode SMS Transmission gt Get All AM Use All Faran Enter cfg status Exit cfg status TCP UDP WA TCP UDP T e Bots PC t a DTU O dal Help message Restart Query version Query phone number A PA A Save as default Restore default Restore factory Save Param Y Enable NetA IP amp Port test usr cn 33333 T ES peneral operation process Link type ICP v Long c y 1 Module connect to PC serial port 2 Open the serial port Enable NetB 3 Get All Param 4 Choose work mode and configure related parameters 5 Set All Param 7 Enable Heartbeat time s 30 heartbeat q Heartbeat data www usr cn 7 Hex Heartbeat send type Send data to network Enable register package Base Param y More 7 Enable echo VY Similar RFC2117 F Enable call WWW UST cn Serial por
9. gt CR LF CR LF OK CR LF query current value of parameter AT REGTP CR or AT REGTP CR CR LF REGTP type CR LF CR LF OK CR LF set parameter AT REGTP type CR CR LF OK CR LF gt parameter type type of register data e ICCID ICCID code e IME IMEI code REGID register ID for D2D function e REGDT user defined data 34 AT REGID function query or set register ID used for D2D format query parameter introductions AT REGID CR CR LF REGID lt id gt CR LF CR LF OK CR LF query current value of parameter Jinan USR IOT Technology Limited 48 54 tec usr cn A USR IOT I 1 Be Honest Do Best USR GM3 User Manual www usriot com AT REGID CR or AT REGID CR CR LF REGID id CR LF CRHLF OK CR LF set parameter AT REGID id CR CR HLF OK CR LF gt parameter id register ID 35 AT REGDT gt function query or set register user defined data gt format query parameter introductions AT REGDT CR CR LF REGDT lt data gt CR LF CR LF OK CR LF query current value of parameter AT REGDT CR or ATFREGDT CR CR LF REGDT data CR LF CR LF OK CR LF set parameter AT REGDT data CR CR LF OK CR LF gt parameter data user defined register data hex string max length is 80 bytes for example 7777772E7573722E636E means www usr cn in ASCII 36 AT REGSND gt function quer
10. introductions AT CMDPW CR CR LF CMDPW lt password gt CR LF CRK LF OK CR LF query current value of parameter AT CMDPW CR or AT CMDPW CR CR LF CMDPW password CR LF CR LF OK CR LF set parameter AT CMDPW password CR CR LF OK CR LF gt parameter password command password 10 AT CACHEN function query or set enable disable data cache gt format query parameter introductions AT CACHEN CR CR LF CACHEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT CACHEN CR or AT CACHEN CR CR LF CACHEN status CR K LF CR LF OK CR LF set parameter AT CACHEN status CR CR LF OK CR LF gt parameter status enable disable data cache on enable e off disable Jinan USR IOT Technology Limited 40 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 11 AT STMSG gt function query or set welcome message gt format query parameter introductions AT STMSG CR CR LF STMSG lt welcome message gt CRHLF CRHLF OK CR LF 9 query current value of parameter AT STMSG CR or AT STMSG CR CR LF STMSG message CRHLF CRHLF OK CR LF set parameter AT STMSG message CR CR LF OK CR LF gt parameter message welcome message when module powers up it will show them this can be used to check if module starts up normally 12 AT S gt f
11. protocol e TCP TCP e UDP UDP address server address IP or domain name port server port 1 65535 25 AT SOCKB function query or set socket B parameters format query parameter introductions AT SOCKB CR CR LF SOCKB lt TCP UDP gt lt address gt lt port gt CR LF CR LF OK CR LF query current value of parameter AT SOCKB CR or AT SOCKB CR CR LF SOCKB protocol address port CR LF CR LF OK CR LF set parameter AT SOCKB 7protocol address port CR CR LF OK CR LF gt parameter protocol communication protocol e TCP TCP e UDP UDP address server address IP or domain name port server port 1 65535 26 AT SOCKAEN function query or set enable disable socket A gt format query parameter introductions AT SOCKAEN CR CR LF SOCKAEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT SOCKAEN CR or AT SOCKAEN CR CR LF SOCKAEN status CRHLFHCR LF OK CR LF set parameter Jinan USR IOT Technology Limited 45 54 tec usr cn A USR IOT I 1 Be Honest Do Best USR GM3 User Manual www usriot com AT SOCKAEN status CR CR LF OK CR LF gt parameter status enable or disable socket A e on enable off disable 27 AT SOCKBEN gt function query or set enable disable socket B gt format query parameter introductions AT SOCKBE
12. query current value of parameter AT HTPHD CR or AT HTPHD CR CR LF HTPHD head CR LF CR LF OK CR LF set parameter AT HTPHD head CR Jinan USR IOT Technology Limited 52 54 tec usr cn A USR IOT I 1 Be Honest Do Best USR GM3 User Manual www usriot com CR LF OK CR LF gt parameter head HTTP request head 45 AT DSTNUM gt function query or set destination phone number format query parameter introductions AT DSTNUM CR CR LF DSTNUM lt number gt CR LF CR LF OK CR LF query current value of parameter AT DSTNUM CR or AT DSTNUM CR CR LF DSTNUM number CR LF CR LF OK CR LF set parameter AT DSTNUM number CR CR LF OK CR LF gt parameter number destination phone number in SMS mode 46 AT SMSEND function send SMS message format query parameter introductions AT SMSEND CR CR LF SMSEND lt number gt lt 1 2 3 gt lt data gt CR LF CR LF OK CR LF set parameter AT SMSEND number type data CR CR LF OK CR LF gt parameter number destination phone number type coding scheme e 1 ASCII coding compressed e 2 8bits coding not compressed e 3 UCS8 coding data content of SMS message Jinan USR IOT Technology Limited 53 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com Appendix A Contact Company Jinan USR IOT Technology Limited Address
13. s serial device Customers don t need to know the detail of communication just need some simple setting 4 1 4 2 Application Scenarios If user s device is a serial device it is placed at remote area User wants to communicate with this device by SMS message to check what status the device is in or to control the device 4 1 4 3 Usage Note All the AT commands terminate with carriage return 0x0D we ignore it here About how to use AT commands please refer to chapter 5 We have one software for customers to use customers can get it from our website http www usriot com Download 248 html And we have one software for customers to do serial and network tests customers can get it from our website http www usriot com Product 78 html Jinan USR IOT Technology Limited 24154 tec usr cn A USR IOT l Be Honest Do Best USR GM3 User Manual www usriot com 1 Setting 1 Set the destination phone number stination phone number 1008610010 2 Set work mode as SMS message transmission Choose Work Mode gt Network Transmission HITPD Mode SMS Transmission kg 5 0 E ti et DTU ei 2 Reset module and send message to module via serial port then you will get the message on your cellphone Then send a message back to module then you will get the message from module s serial port ABA DIEFSHORIRANS jew usr ch Send via Serial Port O Send P Jinan USR IOT Technology Limi
14. we O jJXineforuri oo gRXieforurti OOOO O TSiimeforuart IO 38 RIS 1 RTStineforuatt OOOO NN Loe 8 3 MC NC La ow L4 GND GND e ono 3 1 5 Outside Antenna 1 The line of Antenna should be short to make the insert loss lower and routed as RF line strictly to keep 50ohm matching 2 It s better to put the antenna pad on the edge of the PCB Jinan USR IOT Technology Limited 11 54 tec usr cn Be Honest Do Best USR GM3 User Manual www usriot com A USR IOT 4 Module Functions 4 1 Work Mode USR GM3 module can work in 3 modes e SMS message transmission mode e network transmission mode e HTTPD mode 4 1 1 Switching Work Mode Choose by button you want to work mode Choose Work Mode O Network Transmission HITPD Mode SMS Transmission TCP UDP Ifi TCP UDP ti fut ote PC E Hot And then select save all parameters Operation and Hints Get All Paran a Set All Param Enter cfg status p cfg status Melp message Restart Query version Query phone number Save as default Restore default Restore factory Save Param Can save the default parameters for the user click on the restart after effective working mode Note if you can t find the above tool buttons please refer to the picture s position on the drive you can see the hidden button Save as default Restore default Restore factory Save Param Jinan USR IOT Techno
15. A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com USR GM3 User Guide USR GM3 File version Ver1 0 USR GMs3 is highly integrated UART to GSM GPRS module Users can easily make communication between serial device and cellphone and network device with it This module is different from the common modules on the market it is the smallest GPRS DTU plug and play device Later version USR GMSS will be with SIM card inside more easier to use it just need power supply Jinan USR IOT Technology Limited 1 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com Content USR GM939 User Guide nian e tet eere e eric ee EI tte eee OH ied digests Tages 1 ene m U 3 1 3 Testing environment n BUSH nC US 3 1 2 ic Ln EVM SIO Msc ooi sad cet she sees e T a Ra E OO 4 2 Introduction 3 as ete A ld ARR GA ea 5 2 1 Short Description eienen dais 5 2 2 Characteristic ad en eeiam eame Din cene td 6 2 Ss c da M Mu M MM ar Mu Ms M e M 6 2 4 Application Field HERE RE HERES CER EIUS NG ERIN RAD ERU Ned ge ga a a eaaa 6 Se auicm AK E A iii 8 3 1 PinDescrIptiOD i E Ee ERE HE HERE UR EHE A a aa AAN A NE NA KN b RE Na 8 3 1 Outside View oret e e ter o rt a I ee a EBEG ENG TA KENE er hr oriri etr PE Tes 8 3 12 Pin Assignment CIOP sasa aana nean a tere tte ad gana iita anaa aiii 8 3 1 3 PCB Be P
16. LF CR LF OK CR LF 9 query current value of parameter AT HTPTP CR or AT HTPTP CR CR LF HTPTP type CR LF CR LF OK CR LF set parameter AT HTPTP type CR CR LF OK CR LF gt parameter type HTTP request type GET get e POST post Jinan USR IOT Technology Limited 51 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 42 AT HTPURL gt function query or set HTTP URL gt format query parameter introductions AT HTPURL CR CR LF HTPURL lt URL gt CR LF CRHLF OK CR LF query current value of parameter AT HTPURL CR or AT HTPURL CR CR LF HTPURL URL CR KLF CRHLF OK CR LF set parameter AT HTPURL URL CR CR LF OK CR LF gt parameter URL HTTP request URL 43 AT HTPSV function query or set HTTP server address and port format query parameter introductions AT HTPSV CR CR LF HTPSV lt address gt lt port gt CR LF CR LF OK CR LF query current value of parameter AT HTPSV CR or AT HTPSV CR CR LF HTPSV address port CR LF CR LF OK CR LF set parameter AT HTPSV address port CR CR LF OK CR LF gt parameter address server address IP or domain name port server port 1 65535 44 AT HTPHD function query or set HTTP request head format query parameter introductions AT HTPHD CR CR LF HTPHD lt head gt CR LF CR LF OK CR LF
17. N CR CR LF SOCKBEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT SOCKBEN CR or AT SOCKBEN CR CR LF SOCKBEN status CR LF CR LF OK CR LF set parameter AT SOCKBEN status CR CR LF OK CR LF gt parameter status enable or disable socket B e on enable e off disable 28 AT SOCKASL function query or set socket A long or short connection gt format query parameter introductions AT SOCKASL CR CR LF SOCKASL lt short long gt CR LF CR LF OK CR LF 9 query current value of parameter AT SOCKASL CR or AT SOCKASL CR CR LF SOCKASL type CR LF CR LF OK CR LF set parameter AT SOCKASL type CR CR LF OK CR LF gt parameter type connection style short short connection e long long connection Jinan USR IOT Technology Limited 46 54 tec usr cn A USR IOT I 1 Be Honest Do Best USR GM3 User Manual www usriot com 29 AT SOCKBSL gt function query or set socket B long or short connection gt format query parameter introductions AT SOCKBSL CR CR LF SOCKBSL lt short long gt CR LF CR LF OK CR LF query current value of parameter AT SOCKBSL CR or AT SOCKBSL CR CR LF SOCKBSL type CR LF CR LF OK CR LF set parameter AT SOCKBSL type CR CR LF OK CR LF gt parameter type connection style short short connection e
18. N lt on off gt CR LF CR LF OK CR LF query current value of parameter AT CALEN CR or AT CALEN CR CR LF CALEN status CR LF CR LF OK CR LF set parameter AT CALEN status CR CR LF OK CR LF parameter status enable or disable call e on enable e off disable AT NATEN function query or set enable disable network command format query parameter introductions AT NATEN CR CR LF NATEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT NATEN CR or AT NATEN CR CR LF NATEN status CR LF CR LF OK CR LF set parameter AT NATEN status CR CR LF OK CR LF parameter status enable or disable network command on enable e off disable AT UATEN function query or set enable disable serial port command format query parameter introductions AT UATEN CR CR LF UATEN lt on off gt CR LF CR LF OK CR LF Jinan USR IOT Technology Limited 39 54 tec usr cn A USR IOT I 1 Be Honest Do Best USR GM3 User Manual www usriot com 9 query current value of parameter AT UATEN CR or AT UATEN CR CR LF UATEN status CR LF CR LF OK CR LF set parameter AT UATEN status CR CR LF OK CR LF gt parameter status enable or disable serial port command on enable e off disable 9 AT CMDPW function query or set command password format query parameter
19. USR GM3 User Manual www usriot com Choose Work Mode HITPD Mode SMS Transmission TCP UDP 4 TCP UDP tug fus 8 0 fi da un h Pe 2 Enable serial command function Base Param J More Enable echo 4 Similar RFC2117 Enable call Y Network command Data cache Command password usr cn Welcome message USR GMS V1 0 3 Query command password I lt 4 ally Base Param More Enable echo J Similar RFC2117 Enable call Aa E Serial port J Network command Data cache Command password usr cn Welcome message USR GM3 1 0 S After setting successful restart GM3 then send usr cn AT VER via serial Then GM3 will respond the firmware version m 1 Jinan USR IOT Technology Limited 18 54 tec usr cn Be Honest Do Best A USR IOT USR GM3 User Manual www usriot com sr cn AT VER Send via Serial Port 4 1 2 4 2 Network AT command 1 Enable network command function Base Param A More J Enable echo Y Similar RFC211T Enable call J Serial port J Network command a Tata cache Command password jusr cn Welcome message JUSR GM3 V1 0 S m 2 Query command password Base Param A More Y Enable echo Y Similar RFC2117 Enable call J Serial port Y Network command Data cache
20. d 42154 tec usr cn AM A USR IOT I 1 Be Honest Do Best USR GM3 User Manual www usriot com 20 AT CNUM function query the MS ISDN related to the subscriber format query current value of parameter AT CNUM CR or AT CNUM CR CR LF CNUM phone number CRHLFHCRHLF OK CR LF gt parameter phone number phone number 21 AT UART function query or set serial port parameters format query parameter introductions AT UART CR CR LF UART lt 2400 4800 9600 14400 19200 28800 33600 38400 57600 115200 230400 460800 921600 gt lt NONE ODD EVEN gt lt 7 8 gt lt 1 2 gt lt NONE CRTS RS485 gt CR LF CR LF OK CR LF query current value of parameter AT UART CR or AT UART CR CR LF UART baud parity data bit stop bit flow control CR LF CR LF OK CR LF set parameter AT UART baud parity data bit stop bit flow control CR CR LF OK CR LF parameter baud baud rate 2400 4800 9600 14400 19200 28800 33600 38400 57600 115200 230400 460800 921 600 parity NONE no parity ODD odd parity e EVEN even parity data bit e 7 7 data bits e 8 8 data bits flow control e NONE no flow control e CRTS use RTS CTS for flow control RS485 use RS485 function Jinan USR IOT Technology Limited 43 54 tec usr cn A USR IOT I 1 Be Honest Do Best USR GM3 User Manual www us
21. he head of every TCP UDP package The type of register package could be ICCID IMEI or user defined data 4 2 2 Usage 1 Enable sending register package Jinan USR IOT Technology Limited 28 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 7 Enable Reg package send type Send register data when socket c w register package Reg package data type ICCID c y 8985011487561397681 2 Setthe type of register package data for instance using user defined data 7 Enable Reg package send type Send register data when socket c y register package Reg package data type v ITTTTT2ETST3T22EE v Hex 3 Set user defined register data for instance set data as string www usr cn you need to convert it to hex string 7777772E7573722bE636E Enable Reg package send type Send regis register package Reg package data type User de y 4 Setsending type for instance send data when connection is established Weise Reg package send type Send register data when socket c register package Reg package data type Vser de y TTTTTTZETSTST22EE V Hex Besides customers need to configure socket A or socket B for network connection refer to chapter 4 1 2 3 After setting successful restart GM3 When connection is establishing GM3 will send string www usr cn to server via socket A and socket B 4 3 Heart Beat Package 4 3 1 Description Under network transmi
22. imited 37 54 tec usr cn O USR IOT Be Honest Do Best USR GM3 User Manual www usriot com VN vv V Vo function query and set enable disable echo format Query parameter introductions AT E CR CR LF E lt on off gt CR LF CR LF OK CR LF query current value of parameter AT E CR or AT E CR CR LF E status CR LF CR LF OK CR LF set parameter AT E status CR CR LF OK CR LF parameter status enable or disable echo e on enable e off disable AT ENTM function quit from command mode format setting AT ENTM CR CR LF OK CR LF AT WKMOD function query or set work mode format query parameter introductions AT WKMOD CR CR LF WKMOD lt CMD SMS NET HTTPD gt CRHLF CRKLF OK CR LF query current value of parameter AT WKMOD CR or AT WKMOD CR CR LF WKMOD mode CR K LF CR LF OK CR LF set parameter AT WKMOD mode CR CR LF OK CR LF parameter mode work mode e CMD AT command mode e SMS SMS message transmission mode e NET network transmission mode e HTTPD HTTPD mode Jinan USR IOT Technology Limited 38 54 tec usr cn O USR IOT I 1 Be Honest Do Best USR GM3 User Manual www usriot com 6 gt gt V VO v v 0 AT CALEN function query or set if allow to call format query parameter introductions AT CALEN CR CR LF CALE
23. ine return Receive As HEX Receive Pause Save Clear Receive to file Send Options kuto Checksum Auto Clear Input Send As Hex Send Recycle Interval 1000 ms Load Clear Data from file oo ELA LE Read Send 0 Recw 0 Reset LE Read Receive from 115 28 232 1 www usr cn 12882 Peers Al Connections Connections y Send 10 Bev 10 4 1 2 4 Special Type Of Sending Command File F Options O Help H COM port data receive NetSeltings 1 Protocol TCP Server 2 Local host IP 115 28 232 174 3 Local host port 10000 0 Disconnect Recv Options Receive to file Add line return Receive As HEX Receive Pause Save Clear Send Options Data from file Auto Checksum Auto Clear Input Send As Hex Send Recycle Interval BD Load Recv 10 Besides under AT command mode customers can also send At commands under network transmission mode via serial or network This kind of commands is different from common ones customers should add command password and at the front of common command string Note every command string should terminate with carriage return Here we use OD 4 1 2 4 1 Serial AT Command 1 Set work mode as network transmission Jinan USR IOT Technology Limited 17 54 tec usr cn A USR IOT Be Honest Do Best
24. ing data to device In the above figure abscissa axis means time the data above time axis is sent to module from device and the data bellow time axis is sent to device from module time requirement T1 200ms T2 lt 50ms T3 50ms T5 3s Go into command mode Jinan USR IOT Technology Limited 33 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 1 Module is in SMS message transmission network transmission or HTTPD mode 2 Device send to module then module send a to device 3 If device receives a it must send a to module within 3 seconds 4 Module receives a and sends tok to device 5 Device receives tok it means module has gone to temporary command mode so device can send AT commands to module Back to previous mode 1 Device send command AT ENTM to module 2 Module receives AT ENTM and send OK to device 3 Device receives OK it means module has gone back to previous mode 5 2 AT Command Format AT commands work in asking answering mode asking means device sends commands to module answering means module responds to device Symbol Description lt gt content inside is necessary content inside is not necessary range for example A B means the range is from A to B B carriage return hex number is OD CMD command code OP operator PARA paramete
25. logy Limited 12 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 4 1 2 Network transmission 4 1 2 1 Description TCP UDP Internet TCP UDP PC data data Serial data GM3 Serial device Under this mode customer s serial device can send data to TCP or UDP server via this module Module can also receive data from server and transmit the data to customer s serial device Customers don t need to know the detail of communication just need some simple setting GM3 support 2 sockets socket A and socket B they are standalone with each other GM3 only supports TCP Client and UDP Client 4 1 2 2 Application Scenarios If user want to make communication between serial devices and devices on the network but in the place where serial device stays using router to connect to network is not convenient for user But signal from base station is available so GM3 module can build a bridge between serial device and devices on the network 4 1 2 3 Usage Note All the AT commands terminate with carriage return Ox0D we ignore it here About how to use AT commands please refer to chapter 5 We have one software for customers to use customers can get it from our website http www usriot com Download 248 html And we have one software for customers to do serial and network tests customers can get it from our website http www usriot com Product 78 html Jinan USR IOT Technol
26. long long connection 30 AT SOCKALK function query socket A connection status gt format query current value of parameter AT SOCKALK CR or AT SOCKALK CR CR LF SOCKALK status CR LF CR LF OK CR LF gt parameter status socket A connection status connected connected disconnected disconnected 31 AT SOCKBLK gt function query socket B connection status gt format 9 query current value of parameter AT SOCKBLK CR or AT SOCKBLK CR CR LF SOCKBLK status CR LF CR LF OK CR LF gt parameter status socket B connection status connected connected disconnected disconnected 32 AT REGEN function query or set enable disable register package Jinan USR IOT Technology Limited 47 154 tec usr cn A USR IOT I 1 Be Honest Do Best USR GM3 User Manual www usriot com gt format query parameter introductions AT REGEN CR CR LF REGEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT REGEN CR or AT REGEN CR CR LF REGEN status CR LF CR LF OK CR LF set parameter AT REGEN status CR CR LF OK CR LF gt parameter status enable or disable register package on enable e off disable 33 AT REGTP function query or set register package data type format query parameter introductions AT REGTP CR CR LF REGTP lt ICCID IMEI REGID REGDT
27. lt CR gt lt LF gt successful lt CR gt lt LF gt lt CMD gt lt PARA gt lt CR gt lt LF gt lt CR gt lt LF gt lt OK gt lt CR gt lt LF gt return parameter ols 5 3 AT Command Set NO command description Mamagementcommands 1 H help message 2 Z restart 3 E query and set enable disable echo 4 ENTM quit from command mode 5 WKMOD query or set work mode 6 CALEN query or set if allow to call 7 NATEN query or set enable disable network command 8 UATEN query or set enable disable serial port command 9 CMDPW query or set command password 10 CACHEN query or set enable disable data cache 11 STMSG query or set welcome message 12 S Save current settings 13 RELD restore default settings 14 CLEAR restore factory settings 15 CFGTF save current setting as default setting 16 VER query firmware version 17 SN query SN code 18 ICCID query CCID code 19 IMEI query IMEI code 20 CNUM query the MS ISDN related to the subscriber 21 UART query or set serial port parameters 22 RFCEN query or set enable disable similar RFC2117 23 APN query or set APN code 24 SOCKA query or set socket A parameters 25 SOCKB query or set socket B parameters 26 SOCKAEN query or set enable disable socket A 27 SOCKBEN query or set enable disable socket B 28 SOCKASL query or set socket A long or short connection
28. ms Send Interval 300 ms Load Clear Load Clear Read Send 0 Recw D Reset jg Ready Send 0 Recw 0 qua 2 Set Module Parameters 1 Set work mode as network transmission Choose Work Mode HTTPD Mode O SMS Transmission TCP UDP kis TCP UDP tue A g pogi gt dat Hh KANA ge ey qa mue way beamed 2 Enable socket A Jinan USR IOT Technology Limited 15 54 tec usr cn A USR IOT l Be Honest Do Best USR GM3 User Manual www usriot com Param of Network Transmission J Enable HetA IP Port test usr cn 10000 Link type TCP v Long cc y 3 Set socket A as TCP client server address is test usr cn domain server port is 10000 Param of Network Transmission J Enable HetA IP Port test usr cn 10000 Link type TCP v Long cc w 3 Restart GM3 wait the connection of socket A has been established send data to module via serial port then you will get data at network server software And send data to module via network then the data will be got at module serial port WWW UST cn WWW UST cn Send via Serial Port O Send Jinan USR IOT Technology Limited 16 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com COMSettings PortNum COM3 gt BaudR 115200 v DPaity NONE Data 8 bit StopB 1 bit M Open Recy ptions Add l
29. n USR IOT Technology Limited 22154 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com data www usr cn www Uusr cn data www usr cn Send via Serial Port In the step 1 serial device send data www usr cn to GM3 then GM3 prepares HTTP package with head information set before so the package data is GET 1 php data www usr cn HTTP 1 1 Host www usr cn Accept text html Accept Language zh CN User Agent Mozilla 5 0 Connection Keep Alive After sending data GM3 receives data HTTP 1 1 200 OK Date Wed 24 Jun 2015 04 08 35 GMT Server Apache 2 0 63 Win32 mod ssl 2 0 65 OpenSSL 0 9 80 PHP 5 2 14 X Powered By PHP 5 2 14 Cache Control max age 600 Expires Wed 24 Jun 2015 04 18 35 GMT Content Length 19 Keep Alive timeout 15 max 99 Connection Keep Alive Content Type text html www usr cn After GM3 receives the above data it will analysis the information and send the result to serial device Jinan USR IOT Technology Limited 23 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 4 1 4 SMS Message Transmission 4 1 4 1 Description Base station cell SMS SMS phone Serial data Serial Device GM3 Under this mode customer s serial device can send SMS message to a cell phone via this module Module can also receive SMS message from cell phone and transmit the message in serial data to customer
30. ogy Limited 13 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 1 Set TCP server software log in remote server via remote desktop connection Ki Remote Desktop Connection gt y Remote Desktop x Connection Computer test usr cn Username AY130628163506Z Administrator You will be asked for credentials when you connect Options Then open network test software set the parameters as the bellowing Jinan USR IOT Technology Limited 14 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 4j USR TCP232 Test RS232 to Ethernet Convert test File F Options O Help H COMSettings COM port data receive Network data receive NetSettings PortNum COM3 z 1 Protocol BaudR 115200 TCP Server 2 Local host IP NONE Y DPaity 115 28 232 174 DataB 8 bit tt z 3 Local host port StopB 1 bit 10000 Open 0 Disconnect rReev Options rRecv Options Receive to file Receive to file Add line return Add line return Receive As HEX Receive As HEX Receive Pause Receive Pause Save Clear Save Clear rSend Options Send Options Data from file Data from file Auto Checksum Auto Checksum Auto Clear Input Auto Clear Input Send As Hex Send As Hex Bend Bicycle Peers All Connections Sand Recycle Interval 1000
31. r CR carriage return LF line feed Jinan USR IOT Technology Limited 34 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 1 The format of asking Command string lt AT gt CMD OP PARA lt CR gt Code meaning necessary AT AT command head Yes CMD purpose of command Yes OP action type of command No PARA parameters of command No CR termination of command Yes Type of command type Command string description 0 AT CMD CR query parameters 1 AT CMD CR Query the value of parameter 2 AT CMD CR execute action or query parameters 3 AT CMD PARAM CR Set the value of parameter 2 The format of answering There are two kinds of response with or without echo All the followings are using without echo as examples Command string CR LF CMD OP PARA CR LF lt CR gt lt LF gt OK lt CR gt lt LF gt Code meaning necessary CR carriage return No LF line feed No CMD response head No Type of command OP operator No PARA parameter No CR carriage return No LF line feed No CR carriage return Yes LF line feed Yes OK operating successful No CR carriage return Yes LF line feed Yes Jinan USR IOT Technology Limited 35 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com lt CR gt lt LF gt lt OK gt
32. riot com 22 AT RFCEN gt function query or set enable disable similar RFC2117 gt format query parameter introductions AT RFCEN CR CR LF RFCEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT RFCEN CR or AT RFCEN CR CR LF RFCEN status CR LF CR LF OK CR LF set parameter AT RFCEN status CR CR LF OK CR LF gt parameter status enable disable similar RFC2117 on enable e off disable 23 AT APN function query or set APN code gt format query parameter introductions AT APN CR CR LF APN lt code gt CR LF CR LF OK CR LF 9 query current value of parameter AT APN CR or AT APN CR CR LF APN code CR LF CR LF OK CR LF set parameter AT APN code CR CR LF OK CR LF gt parameter code APN code 24 AT SOCKA gt function query or set socket A parameters gt format query parameter introductions AT SOCKA CR CR LF SOCKA lt TCP UDP gt lt address gt lt port gt CR LF CR LF OK CR LF query current value of parameter AT SOCKA CR or AT SOCKA CR Jinan USR IOT Technology Limited 44 54 tec usr cn A USR IOT I 1 Be Honest Do Best USR GM3 User Manual www usriot com CR LF SOCKA protocol address port CRK LF CR LF OK CR LF set parameter AT SOCKA protocol address port CR CR LF OK CR LF gt parameter protocol communication
33. s need to configure socket A or socket B for network connection refer to chapter 4 1 2 3 After setting successful restart GM3 When connection is establishing If device is idle for 30 seconds GM3 will send string www usr cn to server via socket A and socket B Jinan USR IOT Technology Limited 30 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 4 4 UART 4 4 1 RS485 4 4 1 1 Description GM3 module supports RS485 function RS485 is half duplex the direction of transmitting data should be controlled manually If customer enables module s RS485 function the pin 7 of module is used to control the direction of communication Refer to command AT UART 4 4 1 2 RS485 Reference Circuit GM3 MAX3485 RS485 TXD1 RADA 4 4 2 Similar RFC2217 4 4 2 1 Description This function is similar to RFC2217 Customer can change the parameters of serial port dynamically via network This modification is temporary when module restarts the parameters changed will return back to previous values Jinan USR IOT Technology Limited 31 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 4 4 2 2 Definition of similar RFC2217 This protocol contains 8 bytes details as the following form Item Head Baud Rate Bits Parameters Check Sum bytes 3 3 1 1
34. ssion mode customers can send Heart Beat Package to network server or serial device Sending heart beat data to network server is used to check if connection is alive If GM3 sends data unsuccessful for 3 times it will try to reconnect to server Jinan USR IOT Technology Limited 29 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com Sending heart beat data to serial device is usually used to query information from serial device instead of sending query command from server To do this can cut some communication flow 4 3 2 Usage 1 Enable sending heart beat package Enable Heartbeat time s 30 heartbeat Heartbeat data T TTTTZETSTSTZZ2E636E J Hex Heartbeat send type Send data to network 2 Setthe destination of heart beat package data for instance to network server Enable Heartbeat time s 30 heartbeat lt Heartbeat data TTTTTT2ETSOT3T22EB3BE v Hex Heartbeat send type PIU Tis 3 Set heart beat data for instance set data as string www usr cn customer need to convert it to hex string 7777772E7573722E636E Y Enable Heartbeat time s 30 heartbeat Heartbeat data TTTTTTZETSTSTZZE636E v Hex Heartbeat send type Piu gt 4 Set sending period for instance 30 seconds J Enable Heartbeat time s 30 heartbeat Heartbeat data TTTTTTZETSTSTZZE636E v Hex Heartbeat send type BOURSES 9 Besides customer
35. t J Network command Data cache Command password usr cn m Welcome message USR GH3 V1 0 Send via Serial Port O Send Meaning of led POWER on means normal power supply off means power supply failure WORK blink means running correctly off means not running GPRS on means attached off means attach failure LINKA on means socket A has connected to server off means not connect LINKB on means socket B has connected to server off means not connect Jinan USR IOT Technology Limited 4 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com DATA blink means transmission off means no transmission 4 Wait for LINKA led on send data to module via serial port For example if you send www usr cn at the same time the DATA led will be on for a while Then you will get www usr cn in the receiving window from our test server WWW UST cn WWW UST cn Send via Serial Port 2 Introduction 2 1 Short Description USR GM3 is new listing at 2015 it is one embedded GSM module USR GM3 is designed for embedded system it is so small and convenient that you can integrate it to your system easily Jinan USR IOT Technology Limited 5 54 tec usr cn O USR IOT A Be Honest Do Best USR GM3 User Manual www usriot com 2 2 Characteris
36. ta CR LF CR LF OK CR LF set parameter AT HEARTDT data CR CR LF OK CR LF gt parameter data heartbeat data hex string max length is 80 bytes for example 7777772E7573722E636E means www usr cn in ASCII 39 AT HEARTTP function query or set heartbeat package sending type format query parameter introductions AT HEARTTP CR CR LF HEARTTP lt COM NET gt CR LF CR LF OK CR LF query current value of parameter AT HEARTTP CR or AT HEARTTP CR Jinan USR IOT Technology Limited 50 54 tec usr cn A USR IOT I 1 Be Honest Do Best USR GM3 User Manual www usriot com CR LF HEARTTP type CR LF CR LF OK CR LF set parameter AT HEARTTP type CR CR LF OK CR LF gt parameter type sending type e COM send data to serial port 6 NET send data to network 40 AT HEARTTM gt function query or set heartbeat time gt format query parameter introductions AT HEARTTM CR CR LF HEARTTM lt time gt CR LF CR LF OK CR LF query current value of parameter AT HEARTTM CR or ATFHEARTTM CR CR LF HEARTTM time CR LF CR LF OK CR LF set parameter AT HEARTTM time CR CR LF OK CR LF gt parameter time strobe period unit is second 41 AT HTPTP gt function query or set HTTP request type gt format query parameter introductions AT HTPTP CR CR LF HTPTP lt GET POST gt CR
37. te History ient anga NE ied eth eee emer naga a idet aa pn aa aaa Dy bru n ad ardi 54 Jinan USR IOT Technology Limited 2 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com Quick Start This chapter is a quick start guide for using USR GM3 module If it is the first time to use USR GM3 for you you should read this chapter carefully and then follow the tips try to do some tests by yourself It will help you to know about USR GM3 generally If you have experience of using USR GM3 please escape this chapter In this chapter you will be told how to make communication between serial device and TCP server Under default setting GM3 module works in network transmission mode it connects to our TCP test server address is test usr cn port is 2317 The server will respond what it receives All the software used in this document can be obtained from our website www usriot com You can also access USR customer support center http h usriot com 1 1 Testing environment RS232 The voltage of module is TTL 3 3V so you should not connect it with computer serial port directly an adapter is necessary NOTE 1 If it is the first time to use our module for you please use our EVK Evaluation Kit it may save you lot of trouble and time 2 keep default setting in this test Jinan USR IOT Technology Limited 3 54 tec usr cn A USR IOT f Be Honest Do Best USR GM3 User Manual www usriot
38. ted 25 54 tec usr cn A USR IOT l f Be Honest Do Best USR GM3 User Manual www usriot com Qe FA ICO uil GD 15 48 8 8615688837786 Q Jinan USR IOT Technology Limited 26 54 tec usr cn A USR IOT l Be Honest Do Best USR GM3 User Manual www usriot com 4 1 4 4 SMS AT Command Note every command string should terminate with carriage return Here we use 0D 1 Query command password Base Param Y More Y Enable echo imilar RFC2117 Enable call y S Y Serial port J Network command Data cache Command passwordjusr en ssid Welcome message USR GM3 V1 0 3 Besides customers need to configure SMS message transmission refer to chapter 4 1 4 3 After setting successful restart GM3 send usr cn AT VER to GM3 from cellphone then then you will get response from GM3 m Jinan USR IOT Technology Limited 27 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 13066005635 China step1 dt send to GM3 usr_cn VER V1 0 gt step2 receive from GM3 4 2 Register Package 4 2 1 Description Under network transmission mode customers can send Register Package Register Package is used to make server know what device is sending data or as a password Customers can choose to send register package to network server or serial device Register Package could be sent when network connection is established or as t
39. tic Small and completed function GPRS DTU transmission between serial and GPRS Support GSM850 900 DCS1800 1900 Support GSM GPRS EDGE support 2G 3G 4G SIM card but based on 2G network Support 2 sockets Support TCP and UDP 4KB cache for each of sockets user can choose to cache data or not Support register package and heart beat package Support setting parameters via SMS message Support 4 work modes SMS message transmission mode network transmission mode and HTTPD mode Support basic and extend AT command sets Support similar RFC2217 Support flow control RTS CTS Support RS485 VVVVVV VV VVV WV 2 3 Features Baud rate 2400 4800 9600 14400 19200 28800 33600 38400 57600 115200 230400 460800 921600 Operating voltage 3 40V 4 20V Operating current average 55mA 80mA maximum 750mA Operating temperature 40 85 C Storage temperature 40 125 C Storage humidity 5 95 RH Max TX power GSM900 class4 2W DCS1800 class1 1W 2 4 Application Field gt In power industry USR GM3 can embedded in the electric meter power application terminals and other equipment to realize of reactive power compensation monitoring distribution monitoring meter collection and copy street lamp controlling and other applications to achieve smart city In Heating field USR GM3 can be embedded in m BUS concentrator to achieve the integration of the concentrator and wireless communication Jinan USR IOT Technology
40. unction save current settings gt format setting AT S CR CR LF OK CR LF 13 AT RELD function restore default settings gt format setting AT RELD CR CR LF OK CR LF 14 AT CLEAR function restore factory settings format setting AT CLEAR CR CR LF OK CR LF 15 AT CFGTF Jinan USR IOT Technology Limited 41 54 tec usr cn A USR IOT gt I H Be Honest Do Best USR GM3 User Manual www usriot com function save current setting as default setting gt format setting AT CFGTF CR CR LF OK CR LF 16 AT VER gt function query version gt format query current value of parameter AT VER CR or AT VER CR CR LF VER version CR LF CR LF OK CR LF gt parameter version firmware version 17 AT SN function query SN code format 9 query current value of parameter AT SN CR or AT SN CR CR LF SN code CR LF CR LF OK CR LF gt parameter code SN code 18 AT ICCID gt function query ICCID code gt format query current value of parameter AT ICCID CR or AT ICCID CR CR LF ICCID code CRHLF CRKLF OK CR LF gt parameter code ICCID code 19 AT IMEI gt function query IMEI code gt format query current value of parameter AT IMEI CR or AT IMEI CR CR LF IME code CR LF CR LF OK CR LF gt parameter code IMEI code Jinan USR IOT Technology Limite
41. ut O for output N for not connect Pin Name Type Descipion a voc P Powersupply asvogud CS 2 vec P Powersupply asvbgmud s ow P Pmwegen L4 ow P Powergound 75 Reload 1 Putdown 1s restore defaut seting sas restore factory soning e wc N Keepnoconnecing 7 Reus o fonrorRsass Ls wc Nw keep no connecing s Reset Restart pul down tsforesat 10 ces 9 GPRS status high for attached ow fornotatached Cm unka o BocetAstatus high for connected low for not connected xz unk o Socket B status high for connected low for not connected ra para o bata status high for transmision low for not tansmission ra work o Running satus high for normal low or falure Cis snur Shutdown pul down fo st male Tar eno P pega 1s SPEAKER o Speaker negative termina SSCS 19 SPEAKER o Speaker postive terina 20 mo Meeeoneregsieternnd Ez mor 1 Microphone postive terminal P22 vem P PowrsgnyfrSMcad Ez sim ctx o pexmetrsm swnsr o Reewmetrsu Pava N Keep no connecting Keep no connecting Fa wc n keep no connecting Jinan USR IOT Technology Limited 10 54 tec usr cn O USR IOT Be Honest Do Best USR GM3 User Manual www usriot com ap
42. w usriot com Product 78 html 1 Setting 1 Set work mode as HTTPD Choose Work Mode Network Transmission HITPD Mode SMS Transmission HTTP Bii HTTP LE LES guts HTTP DTU d m Server 2 Setrequest type as GET Jinan USR IOT Technology Limited 21 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com HITP request type GET v 3 Set the address of HTTP server as www usr cn and set server port as 80 HTTP server address WWW usr cn HTTP server port 80 4 Set the request URL as 1 php HTTP URL 1 php 5 Set request head string Accept text html 0D 0A Accept Language zh CN O0D 0A User Age nt Mozilla 5 0 0D OA Connection Keep Alive 0D 0A HTTP request head Accept text html 0D OA Accept L NOTE 0D means carriage return it is OxOD in hex number OA means line feed it is OxOA in hex number Because this kind of data is not able to be put into AT commands string so it is tropical The rule is two bytes in means one byte in hex form For example OD means carriage return OxOD in hex number 20 means space 0x20 in hex number 2 Restart module then send data www usr cn to HTTP server via serial port you will get www usr cn from server NOTE the server www usr cn is USR s HTTP test server if you send 6 a data www usr cn to it it will feed back the data after with including Jina
43. y or set register package sending type gt format query parameter introductions AT REGSND CR CR LF REGSND lt link data link amp data gt CR LF CR LF OK CR LF 9 query current value of parameter AT REGSND CR or AT REGSND CR CR LF REGSND type CR LF CR LF OK CR LF set parameter AT REGSND type CR CR LF OK CR LF gt parameter type sending type link send register data when socket connects data send register data as the head of every TCP UDP package e link amp data support both of above two ways Jinan USR IOT Technology Limited 49 54 tec usr cn A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 37 AT HEARTEN function query or set enable disable heartbeat gt format query parameter introductions AT HEARTEN CR CR LF HEARTEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT HEARTEN CR or AT HEARTEN CR CR LF HEARTEN status CR LF CR LF OK CR LF set parameter AT HEARTEN status CR CR LF OK CR LF gt parameter status enable disable heartbeat function on enable e off disable 38 AT HEARTDT function query or set heartbeat data format query parameter introductions AT HEARTDT CR CR LF HEARTDT lt data gt CR LF CR LF OK CR LF query current value of parameter AT HEARTDT CR or AT HEARTDT CR CR LF HEARTDT da
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