MLX90614-BAA Contactless IR Temperature Sensor Module Serial Interface
Description
- Features:
- Power supply: 3-5v
- Current: 5mA
- Baud rate: 9600 or 115200
- Default auto output frequency: 14HZ
- Measurement range:
- -40… +125 C degree for ambient temperature
- -70… +380 C degree for measurement target temperature
- Measuring distance: close range 1-2cm
- Communication protocol:
- Serial port command byte:
- (1) Serial communication parameters (the default baud rate value 9600bps, can be
set by software) - Baud rate:9600 bps Check bit:N Data bits:Eight Stop bit:1
- Baud rate:115200 BPS Check bit:N Data bits:Eight Stop bit:1
- (2) Module input command,Sent to the GY-MCU90614 Module from External
controller(sixteen hex) - Communication protocol:
- Serial port command byte:
- (1) Serial communication parameters (the default baud rate value 9600bps, can be
set by software) - Baud rate:9600 bps Check bit:N Data bits:Eight Stop bit:1
- Baud rate:115200 BPS Check bit:N Data bits:Eight Stop bit:1
- (2) Module input command,Sent to the GY-MCU90614 Module from External
controller(sixteen hex) - 1.Frame header:0xa5
- Instruction format: header+instructions+Check and (8bit) (such as automatic
reading of temperature instructions=0xA5+0x45+0xEA) - 2.Command instruction:
- Continuous output instruction:
- 0xA5+0x45+0xEA—————-Temperature data (module return data type 0x45)
- Query output instruction:
- – 0xA5+0x15+0xBATemperature data (module return data type 0x45)
- Configuration instruction:(after Power down reset will active)
- Baud rate configuration:
- 0xA5+0xAE+0x53—————9600 (default)
- 0xA5+0xAF+0x54—————115200
- Power on whether automatic transmit temperature data configuration:
- 0xA5+0x51+0xF6—————Automatic output temperature data after power
up(default) - 0xA5+0x52+0xF7—————Not automatic output temperature data after power up
- Communication protocol:
- Serial port receive:
- (1) Serial communication parameters (the default baud rate value 9600 BPS, can
be set by software - Baud rate:9600 BPS Check bit:N Data bits:Eight Stop bit:1
- Baud rate:115200 BPS Check bit:N Data bits:Eight Stop bit:1
- (2) Module output format, each frame contains9Bytes (sixteen decimal):
- 1. Byte0: 0x5A Header flag
- 2. Byte1: 0x5A Header flag
- 3. Byte2: 0X45 Data type of the frame(0X45: Temperature data)
- 4. Byte3: 0x04 Data volume (below 4 data make 2 Groups as an example)
- 5. Byte4: 0x00~0xFF Data 1 high 8 position
- 6. Byte5: 0x00~0xFF Data 1 low 8 position
- 7. Byte6: 0x00~0xFF Data 2 high 8 position
- 8. Byte7: 0x00~0xFF Data 2 low 8 position
- 9. Byte8: 0x00~0xFF Checksum(preceding data accumulate, leaving only low 8 bit)
- (3) Data calculation method
- Temperature calculation method :
- temperature=high 8 position<<8|low 8 bit(The result is 100 multiplied by the actual
angle) - Example: send Instruction: A5 45 EA, received One frame data:
- <5A- 5A- 45- 04- 0C- 78- 0D- 19- A7 >
- Express TO (There is a sign 16 bit, which represents the target
temperature):TO=0x0C78/100=31.92C - Express TA (There is a sign 16 bit, indicates the ambient
temperature:TO=0x0D19/100=33.53C - Usage method:
- The module is the serial output data, user through the serial port connection, send
output instructions, such as 0xA5+0x45+0xEA To the module, the module will be
continuous output temperature data; if you want to query output,you can send
0xA5+0x15+0xBA To the module, every time to send, the module will return a
temperature data, the query frequency should be lower than 10Hz, if required more
than 10Hz continuous output mode, Please send 0xA5+0x45+0xEA Instruction.
Additional information
Weight | 0.02 kg |
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