LM Bluetooth Development Kit User`s Manual 1. Product Layout A
Contents
1. for Bluetooth module G Is mounting area for LM780 Bluetooth module Soldering is needed Only one Bluetooth module should be mount on Bluetooth Development kit at a time The white dot at PCB represents the first pin of the module H is mounting area for LM400 No soldering required as the 2x6 header socket is ready Ensure the orientation of module is correctly installed before power up the board Only one Bluetooth module should be mount on Bluetooth Development kit at a time The white dot at PCB represents the first pin of the module I is mounting area for LM071 Bluetooth module Soldering is needed Only one Bluetooth module should be mount on Bluetooth Development kit at a time The white dot at PCB represents the first pin of the module J is plug in socket for detachable jig Please ensure the orientation of jig is correct before power up the board Only one Bluetooth module should be mount on Bluetooth Development kit at a time K are 2 rows of soldering pad These pins are pins from Bluetooth module User can either use turn pin or header pin supplied together Soldering is required L are 2 LEDs that indicate transmit and receive activity through USB Green LED indicator transmit activity from USB to Bluetooth Red LED indicator receive activity from Bluetooth to USB Using Development board Power 1 2 This board can be powered from a Mini USB b DC adaptor 6 5V to 12V c External r2. LM Bluetooth Development Kit User s Manual 1 Product Layout Label Function Label Function A Power indicator LEDs G LM780 Bluetooth Module B AC to DC power adaptor input H LM400 Bluetooth Module C USB mini cable socket I LM071 Bluetooth Module D DB9 female socket J Socket for Jig E Signal level selector K Pin extension F Reset button for Bluetooth module L Transmit and Receive indicator A consist of 2 small LEDs to indicator power on this Development board Green LED represent 5V while Red LED represent 3 3V B DC power adaptor socket user may plug in standard AC to DC adaptor It has polarity protection C USB Mini socket User may connect the USB cable It provides power to development board and bluetooth module It will become a COM port on computer However it might need to install the FT232 driver on the computer The driver can be downloading at http www ftdichip com If the power required is not over 400 500mA user do not require to power the development kit with extra power source D DB9 female socket User may choose RS232 standard by using serial cable provided to interface Development kit with computer However using this method power source need to be supply from DC power adaptor or the 5V pin E Is a jumper to select the 5V or 3 3V voltage level of communication Transmit and Receive Please refer to schematic provided for details F reset button
3. egulated 5V connected from 5V embedded host such as microcontroller board through header pin or turn pin at K Both DS1 5V and DS2 3 3V LED will light up once the board is powered up Bluetooth Connection 1 Please take note that only ONE bluetooth module can be mounted on this board at a time The module can either be soldered onto the pads provided or mounted using jig and socket provided The Bluetooth module will be powered up once the board is powered up Please ensure the orientation of the jig is correctly plugged before powering up the board The module should be located at the right side of the board Please refer to the photo shown The orientation of the bluetooth is indicated by the white dot on the PCB where its location denotes pin 1 of the Bluetooth Communication to Host 1 2 On the basis this board has built in UART communications for all three Bluetooth module LM780 LM400 and LM071 The UART can be accessed by a Mini USB b Serial Port DB9 c Externally through side PCB pad at K In order to use the USB for communication user needs to have a driver installed on the intended host The driver is included in CD attached nevertheless it can also be downloaded at http www ftdichip com Drivers CDM CDM 202 04 16 exe Two LEDs TX and RX indicate the status of USB s UART whereby they will each blink respectively when data transfer is detected on the USB s UART The UART can al
4. so be accessed externally Likewise every port of the bluetooth module can be accessed at both sides of the board through PCB pad at R Depending on user preference header pin or turn pin can be soldered at this area The Voltage Selector Refer to board layout E is used to select the TTL for external UART Place the jumper at 3 3V if user wish to connect to 3 3V external TTL or 5V if user wish to connect to 5V external TTL Others 1 2 The RESET button is pressed if user choose to reset the Bluetooth module For detail connection please refer to the schematic given
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