SRWF-1E28 Wireless Transceiver Data Module User Manual (915
Contents
1. Below are available antennas for SRWF 1E28 AT 23 2 15dBi 80mm antenna AT 24 3dBi 210mm antenna DEFAULT ANTENNA AT 25 3dBi 100mm antenna AT 32 2 15dBi 53mm antenna Tel 86 021 50275250 50275255 Fax 86 021 50270187 http www sunrayrf com Add 8F Beida Phase II No 560 Shengxia Rd Pudong Zhangjiang Shanghai 201203 China 10 SUNRAY Shanghai Sunray Technology Co Ltd 8 Technical support and after sales service Sunray will provide free technical support for your application and secondary development Sunray assures one year warranty period and provides lifelong maintenance service Shanghai Sunray Technology Co Ltd Add 8F No 560 Shengxia Road Pudong Zhangjiang Shanghai China Tel 86 21 50275250 Fax 86 21 50270187 Website www 51sunray com e mail tech 51sunray com Tel 86 021 50275250 50275255 Fax 86 021 50270187 http www sunrayrf com Add 8F Beida Phase II No 560 Shengxia Rd Pudong Zhangjiang Shanghai 201203 China 11 SUNRAY Shanghai Sunray Technology Co Ltd Appendix One Command list for parameter configuration Parameter Function Command Remark Switch to channel Switch channel configuration by HARDSETCHAN configuration from hardware software to hardware Switch to channel Switch channel Channel configuration by SOFTSETCHAN configuration from software hardware to software Valid in status of software Set channel by SETCHANEXX configuration XX is t2. set by hardware is valid When the module transmits data to the air RX light will flash once When the module receives the data from the air TX light will flash once Tel 86 021 50275250 50275255 Fax 86 021 50270187 http www sunrayrf com Add 8F Beida Phase II No 560 Shengxia Rd Pudong Zhangjiang Shanghai 201203 China 8 SUNRAY Shanghai Sunray Technology Co Ltd 5 4 Time delay diagram When SRWF 1E28 named A transmit the received data from RXD the other SRWF 1E28 receive the data and the output from TXD There are time delay between the data one SRWF 1E28 received from RXD and the data the other SRWF 1E28 output in TXD Different baud rate has different delay time Please see the below table for the details Baud Rate bps Time Delay Td ms 1200 96 2400 48 4800 24 9600 12 2 14400 8 5 19200 6 3 38400 3 2 57600 3 RxD SEE 6 Received signal strength indication RSSI If you want to know RSSI send READRSSI to serial port the RSSI of previous frame of data will be output in serial port The value of RSSI will be absolute value For example if the reading of this byte is 45 then RSSI shall be 69dBm it can also be read by software Tel 86 021 50275250 50275255 Fax 86 021 50270187 http www sunrayrf com Add 8F Beida Phase II No 560 Shengxia Rd Pudong Zhangjiang Shanghai 201203 China 9 SUNRAY Shanghai Sunray Technology Co Ltd 7 Available antenna
3. 60 Shengxia Rd Pudong Zhangjiang Shanghai 201203 China 2 SUNRAY Shanghai Sunray Technology Co Ltd 1 Module introduction SRWF 1E28 is low power wireless data transceiver modules It can be used for any standard or nonstandard user protocol The below are SRWF 1E28 main features 1 2 9 Transmitting power 500mW 915MHz High anti interference and low BER Bit Error Rate Based on GFSK FSK modulation the high efficiency forward error correction channel encoding technology is used to enhance data s resistance to both burst interference and random interference Multi Channel and channel selection available Channel can be configured by both hardware and software The default is by hardware You can configure 16 channels by hardware or 32 channels by software which meet the multiple communication combination modes Two interface modes TTL and RS 485 Serial port baud rate configuration by software Baud rate set to below value by software 1200 2400 4800 9600 14400 19200 38400 57600 bps Serial port data format definition Serial port data format can be configured by both hardware and software the default is by hardware it support eight bit data 8N1 7E1 701 and so on and nine bit data 9N1 8E1 8O1 and so on and the default is nine bit data Capable of transmitting data frame with unlimited length for more flexible programming for users High integration and high reliability Single chip radio fregue
4. SUNRAY Shanghai Sunray Technology Co Ltd SRWF 1E28 Wireless Transceiver Data Module User Manual 915 MHz Shanghai Sunray Technology Co Ltd Tel 86 021 50275250 50275255 Fax 86 021 50270187 http www sunrayrf com Add 8F Beida Phase II No 560 Shengxia Rd Pudong Zhangjiang Shanghai 201203 China 1 SUNRAY Shanghai Sunray Technology Co Ltd Contents RP Module introduction t 3 2 Introduction m 4 3 Technical specification of SRWF 1E28 oooocooooooo oooooooooooooooooooc 4 4 Interface definition sasauran assa Sudarsan Caini rS Caas ssaa u uiau aisis 5 5 Operation krisna nano neraka ana 6 5 1 Communication interface selection oooocooooooooooooooo ooo ooooooooooooooooooooooooooooooooooooi 6 5 2 Parameter settings ee nb na 8 5 3 Indicator LED Mim OU asean D 8 5 4 Time delay T 9 6 Received signal strength indication RSSI oooooooocoooooooooooooooooooooo 9 7 Available antenna 10 8 Technical support and after sales service ooooooooooo ooooooooooooooooooooooooooooo 11 Appendix One Command list for parameter configuratioOn oooooooooooooooooooooooo 12 Appendix Two Layout dimension oooooooo oooooooooo ooooooooooooooooooo 13 Tel 86 021 50275250 50275255 Fax 86 021 50270187 http www sunrayrf com Add 8F Beida Phase II No 5
5. he software channel number to be set and its range is 00 31 XXX is baud rate to be Baud rate el palatal By DATARATE XXX oe software 012 024 048 096 144 19 2 384 576 Data format Switch to data format Switch data format configuration by HARDSETDATAFORMAT Configuration from hardware software to hardware Switch to data format Switch data format configuration by SOFTSETDATAFORMAT Configuration from software software to hardware Set data format by software DATAFORMAT X Valid in status of software configuration When X is 8 data format is 8bite when 9 data format is 9 bite Output the absolute value RSSI Read RSSI value READRSSI of RSSI If output is 0x32 RSSI is 50dBm f Read version mE Version GETEDITION See the details in 5 3 information Tel 86 021 50275250 50275255 Add 8F Beida Phase II No 560 Shengxia Rd Pudong Zhangjiang Shanghai 201203 China Fax 86 021 50270187 http www sunrayrf com 12 SUNRAY Shanghai Sunray Technology Co Ltd Appendix Two Layout dimension 31 750 22 8854 48 0678 53 6634 Tel 86 021 50275250 50275255 Fax 86 021 50270187 http www sunrayrf com Add 8F Beida Phase II No 560 Shengxia Rd Pudong Zhangjiang Shanghai 201203 China 13
6. l Max Remark 1 aaia C 40 25 85 Temperature 2 Working o rh 10 90 Relative humidity no Humidity condensation 3 Working Voltage V 5V 10 DC 4 Transmitting MHz 915 Freguency 5 Transmit Power dBm 25 26 21 g Transmihing mA 500 550 600 Current 7 Receiving gam 111 115 118 Sensitivity 8 Receiving mA 100 110 120 Tel 86 021 50275250 50275255 Fax 86 021 50270187 http www sunrayrf com Add 8F Beida Phase II No 560 Shengxia Rd Pudong Zhangjiang Shanghai 201203 China 4 SUNRAY Shanghai Sunray Technology Co Ltd Current Point to Point 9 Communication i 1500 In the open Distance area 20dBm 10 Modulation GFSK Mode 11 Number Of 32 Channels Included 12 Dimension mm 53 37 10 height of SMA socket 4 Interface definition The below is the outline of SRWF 1E28 Antenna Single row connector 2 54mm pitch 10pin single row soldering hole is vertically located in the left side of SRWF 1E28 board The below is the pin definition Tel 86 021 50275250 50275255 Fax 86 021 50270187 http www sunrayrf com Add 8F Beida Phase II No 560 Shengxia Rd Pudong Zhangjiang Shanghai 201203 China 5 SUNRAY Shanghai Sunray Technology Co Ltd aignal Pins 2 Note type direction 1 Power GND Supply 2 Power VCC DC power supply gt 5V 10 Supply 3 Signal RXD UART receive 4 Signal TXD O UART transmit 5 Power GND Powe
7. ncy integrated circuit and single chip MCU are used for less peripheral circuits high reliability and low false bit rate The user can also choose any antenna to match the modules 10 Long transmitting distance with stable and reliable communication 11 Communication mode semi duplex Tel 86 021 50275250 50275255 Fax 86 021 50270187 http www sunrayrf com Add 8F Beida Phase II No 560 Shengxia Rd Pudong Zhangjiang Shanghai 201203 China 3 SUNRAY 2 Introduction Shanghai Sunray Technology Co Ltd SRWF 1E28 series modules can be used for below applications O NO UN WN 11 LED display screen for lane buoy or temporary station in open field AMR Automatic Meter Reading Remote control in industry Wireless solutions for weighing scale Data collection of production line Automation and control of medical electronic equipment Data communication in railway oil well and wharf Wireless smart control of lighting system Wireless alarm and security system 9 Car alarm tire pressure monitoring and four wheel orientation 10 Wireless POS and PDA smart terminals 12 Automated non stop billing system on freeway 13 Wireless sensor network 14 Bank queuing management system 15 Automatic control of medical equipment and electronic instruments 16 Warehouse management system 3 Technical specification of SRWF 1E28 Item unit Min Typica
8. nput the command in serial port to set the parameters See appendix one for detailed command SRWF 1E28 will output S to serial port if setting succeed If the SRWF 1E28 is in the status of hardware setting it need to be switched to the status of software setting and then command will work For example Current status is hardware setting if software setting is needed then input SOFTSETCHAN in the serial port SRWF 1E28 is switched to software setting status if the serial port output S then if SETCHAN 01 is input in serial port channel will be set to channel 1 and output S in serial port if software setting is succeed If hardware setting is needed to set channel the input HARDSETCHAN the channel setting by hardware will succeed if the serial port output S 5 3 Indicator LED function When power on the module TX and RX will flash once it means the module is now output an version information to serial port then users can know the module s basic information For example 1E28 V11 C 00 H 869 5 D 024 S 9n1 H Note 1E28 stands for module part number V11 means the module s firmware version is V1 1 C means the channel 00 means channel number H means channel selection by hardware is valid 869 5 means the working frequency D means the baud rate 024 means that the current baud rate is 2400bps S means baud rate set by software is valid 9N1 means the data bit is 9 H means the data format
9. r ground Supply 6 Signal A TX A of RS485 7 Signal B RX B of RS485 8 Signal SLP Low level lt 0 6V is available note low level last time gt 1ms 9 Signal RST Low level lt 0 6V is available note low level last time gt 1ms 10 Signal MOD hovering 5 Operation 5 1 Communication interface selection Tel 86 021 50275250 50275255 Fax 86 021 50270187 http www sunrayrf com Add 8F Beida Phase II No 560 Shengxia Rd Pudong Zhangjiang Shanghai 201203 China 6 SUNRAY Shanghai Sunray Technology Co Ltd 5 1 1 TTL interface GND ND VCC VCC RXD TXD TTL TXD RXD TTL GND A TX B RX SLP RST MOD User module SRWF 1E28 module 5 1 2 RS 485 interface connection application circuit RXD TXD GND A TX B RX SLP RST MOD am VCC VCC o SRWF 1E28 module User module Tel 86 021 50275250 50275255 Fax 86 021 50270187 http www sunrayrf com Add 8F Beida Phase II No 560 Shengxia Rd Pudong Zhangjiang Shanghai 201203 China 7 SUNRAY Shanghai Sunray Technology Co Ltd 5 2 Parameter setting The baud rate data format channel transmitting power can be set Baud rate data format and channel can be set by both hardware and software During hardware setting software setting is invalid During software setting hardware setting are also invalid Hardware setting and software setting can be switched by the serial port command 5 2 1 Parameter setting by software I
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