Bluetooth transmission module allows you to use the original serial equipment to get rid of the shackles of cable in a range of 10 m to realize wireless serial communication. The use of the module without the need tounderstand the complexity of the Bluetooth protocol, only a few simple steps you can enjoy the convenience of wireless communication. The Bluetooth transmission module only 4 AT instructions, respectively, is testing the communication, changed the name, change the baud rate, change password instructions must be paired, ATfrom TXD, RXD signal pins are arranged, not through Bluetooth channel settings. Send AT command device can be various types of MCU ( such as 51, AVR, PIC, MSP430, arm etc. ), can also be a computer through the serial port ( PC serial port after MAX232or USB to serial port to send ).
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