The AMG88xx (AMG8833 / AMG8831) from Panasonic is a Grid-EYE matrix infrared sensor capable of simultaneously boardping 64 temperatures (8×8 pixels). It detects heat (infrared radiation) from the human body or any other object. The sensor is equipped with an I2C interface making it possible to recover the thermal image. The measurement frequency can be up to 10 measurements per second.
Difference between designations AMG8833 and AMG8831
AMG | 8 | 8 | _ | _ |
Number of vertical pixels | Number of horizontal pixels | Supply voltage 3. 3.3V 5. 5V | Amplification 3. High gain 4. Low gain |
There are two generations of the AMG sensor. The current (33,34,53,54) and old (31, 32, 51, 52) versions. This is the reason why we often find the two references on the daughter boards (breakout). The most common part number is AMG8833 / 31.
Reference | Old reference equivalent | Power supply | Signal amplification |
AMG8833 | AMG8831 | 3V3 | High |
AMG8834 | AMG8832 | 3V3 | Low |
AMG8853 | AMG8851 | 5V | High |
AMG8854 | AMG8852 | 5V | Low |
Technical specifications of AMG8833
- Square matrix temperature measurement consisting of 64 points (8×8 pixels)
- Operating voltage: 3.3V or 5V
- Temperature accuracy: ± 2.5°C or ± 4.5°F (typical)
- Human detection distance: 7m maximum
- Temperature difference equivalent to noise is 0.05°C at 1 Hz
- Measuring angle: 60°
- Current consumption: 4.5mA (normal mode), 0.2mA (sleep mode), 0.8mA (sleep mode)
- I2C interface
- Frame rate: 1 or 10 frames per second
- Time to activate communication after configuration: 50ms then 15ms
- Panasonic technical manuals
Arduino and Python libraries
Here are several libraries allowing to drive the AMG88xx from an Arduino, ESP8266, ESP32, CircuitPython, Raspberry Pi project
- Adafruit Python / CircuitPyton Driver
- Arduino library from Adafruit
- Sparkfun Arduino library
- PlatformIO
- Sparkfun: 2089 or pio lib install “SparkFun GridEYE AMG88 Library”
- Adafruit: 1924 or pio lib install “Adafruit AMG88xx Library”
- From the library manager
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