Category:Contactless Temperature

IR Contactless Temperature Sensor

MCU-96015 Serial

• Pin definition: VCC/GND = Power Supply, TX/RX = Serial UART interface, RST SIM no need to use, keep N/C
• Serial default baud rate 115200, configurable 9600, serial example setup 115200, N, 8, 1

Serial commands

• Frame start 0x45
• commands full combination, frame start 0x45 + data + sum 8bit

Output

0xA5+0x45+0xEA continisouly output temperature data
0xA5+0x15+0xBA check/enquiry output temperature data

Baudrate config

0xA5+0xAE+0x53   -- 9600
0xA5+0xAF+0x54   -- 115200 (default)

Power up and output data

0xA5+0x51+0xF6--------------- direct output when power up
0xA5+0x52+0xF7---------------  NOT direct output when power up

Serial data output

• Can also use a PC tool to read data directly

1. Byte0: 0x5A Frame header flag
2. Byte1: 0x5A Frame header flag
3. Byte2: 0X45 The frame data type (0X45: temperature data)
4. Byte3: 0x04 Data volume (the following four data 2 group as an example)
5. Byte4: 0x00 ~ 0xFF 1 high 8 bits of data
6. Byte5: 0x00 ~ 0xFF Lower 8 bits of data1
7. Byte6: 0x00 ~ 0xFF Data 2 Upper 8 bits
8. Byte7: 0x00 ~ 0xFF Lower 8 bits of data2
9. Byte8: 0x00 ~ 0xFF Checksum (in front of the sum of data, leaving only 8 low)

• temperature = high 8 bit << 8 | low 8 bit (multiply 100 =result )
• for example, <5A- 5A- 45- 04- 0C- 78- 0D- 19- A7 >

TO=0x0C78/100=31.92 ℃   // first TO data is object temperature 
TA=0x0D19/100=33.53 ℃   // second TA data is ambient temperature

Guide

• MLX96015 - 16bit ADC, object temperature 115C
• MLX96014-BCC
• MLX96014-BAA

Documents

• MLX96015 demo video, using with arduino
• C51, arduino, STM32 demo test code
• PC Read data software MLX9601x

Datasheet

• MLX90615
• File:MLX90614.pdf