AMG88XX Infrared Array Sensor

Overview

This sample application periodically reads the 8x8 temperature array from the AMG88XX sensor and displays its values to the serial console. The sample can also be configured to be triggered when the upper threshold of 27° Celsius has been reached.

Requirements

The Panasonic AMG88XX is an 8x8 (64) pixel infrared array sensor available only in a SMD design. Here are two sources for easily working with this sensor:

On the Evaluation Kit, all jumpers except the J11 and J14 must be removed.

This sample requires a board which provides a configuration for Arduino connectors and defines node aliases for the I2C and GPIO interfaces. For more info about node structure and interrupt pin wiring see samples/sensor/amg88xx/app.overlay

Building and Running

This sample reads from the sensor and outputs sensor data to the console every second. If you want to test the sensor’s trigger mode, specify the trigger configuration in the prj.conf file and connect the interrupt output from the sensor to your board. You can change the upper threshold values by editing the sample. The default upper threshold value is 27° Celsius (80.6° Fahrenheit).

# From the root of the zephyr repository
west build -b reel_board samples/sensors/amg88xx
west flash

Sample Output

Sample shows values in° C multiplied by 100.

new sample:
---|  00    01    02    03    04    05    06    07
000|02075 01900 02000 01925 02050 01975 01950 01900
001|02000 02000 02000 01900 02125 02000 02050 02050
002|02075 01950 01950 01925 02050 01975 02075 02000
003|02175 02000 01975 01800 02000 02125 01925 02050
004|01975 02050 02050 02000 02000 01975 01925 02000
005|02100 02100 02075 02000 02025 02050 02100 02100
006|01975 02150 02075 02025 02025 02225 02025 02375
007|02025 02075 02150 02075 02025 02050 02125 02400

The sensor array data is output every second.