CJMCU- MLX90614 AAA is a human body infrare non-contact thermometer. It's also a low cost temperature module. Working voltage is 3~5V, low power consumption and small size. Working protocol is read IR temperature data via MCU. Serial port (TTL level); Communication output (baud rate is settable): serial port" 9600bps, 57600bps and 115200bps; With two different kinds od output modes: continous and ask, can suitable for different working occasions, can connect all MCUs and computers.

Communication Protocol: Serail port commucation specification (default rate is 115200bps, settable)
Baud Rate: 9600bps, Parity bit: N, Data bit: 8, Stop bit: 1
Baud Rate: 57600bps, Parity bit: N, Data bit: 8, Stop bit: 1
Baud Rate: 115200bps, Parity bit: N, Data bit: 8, Stop bit: 1

Module Output Format: Direction length: 9

Data output format:
Byte 1 frame header: 0 * 66
Byte 2 frame header: 0 * 66
Byte 3 data output mode (0 * 1: continous output (default), 0*02: query output)
Byte 4 measures data length
Byte 5 data 1 high 8-bit
Byte 6 data 1 low 8-bit
Byte 7 data 2 high 8-bit
Byte 8 data 2 low 8-bit
Byte 9 data parity bit

Using Method: Connect module to power supply and connect to serial port;Serial port outputs directly; If you want to change send mode, you can send direction of 66 66 02 56 to module, module will reture one data of temperature each time you send a direction; If you want to change baud rate to 9600, you can send 66 66 11 56 to module, and 66 66 12 56 to change baud rate to 57600.