Panasonic Grid-EYE Shields

Overview

The Panasonic Grid-EYE is an infra-red sensor, which is comprised of 64 individual thermopile elements arranged in an 8x8 matrix.

The sensor comes in a compact surface mount package and can be very easily integrated into thermometry applications.

Grid-EYE is available in different varieties which differ in field of view, amplification factor and operating voltages. For example AMG8833 features a 60 degree field of view, a high gain amplification factor and 3.3V operating voltage.

For the different part numbers that follow the AMG88xx scheme please refer to IR Thermophile Array Sensor - Grid-EYE [1].

For sensor evaluation and rapid prototyping multiple shields are available:

Panasonic Grid-EYE Evaluation Shield
Adafruit AMG8833 8x8 Thermal Camera Sensor

Please note that the former follows the Arduino shield standard, while the latter is a breakout board only. Please use the amg88xx_grid_eye_eval_shield Grid-EYE shield designation for these boards.

For the Panasonic Grid-EYE sensor an older evaluation kit was available, that also could be used as an Arduino shield.

  • Panasonic Grid-EYE Evaluation Kit

Panasonic Grid-EYE Evaluation Kit (deprecated)

Please note that this evaluation kit is no longer available and no online documentation is available anymore. Please use the amg88xx_eval_kit Grid-EYE shield designation for this board instead.

Requirements

These shields can only be used with a board that has Arduino connectors and where node aliases for I2C and GPIO interfaces are correctly defined in the board’s device tree.

This is true for example for Panasonic’s PAN1780/PAN1770, PAN1781 and PAN1782 evaluation boards (Panasonic Wireless Connectivity Development Hub [3]).

Jumper Configuration

Panasonic Grid-EYE Evaluation Shield

The Grid-EYE sensor is powered using a LDO. Make sure to set a jumper on P10: LDO_EN.

A jumper on P11 configures the I2C address selection.

When you use the amg88xx_grid_eye_eval_shield Grid-EYE shield designation make sure to use the following jumper configurations:

  • P10: LDO_EN

  • P11: AD 0x68

Panasonic Grid-EYE Evaluation Kit

On the AMG88xx Evaluation Kit, all jumpers except the J11 and J14 must be removed.

Pin Assignment

Panasonic Grid-EYE Evaluation Shield

The following table shows the complete pin assignment of the Grid-EYE Evaluation Shield.

Shield Connector Pin

Function

D2

Interrupt

D14

I2C SDA

D15

I2C SCL

Power supply header pin 5

5V Power Supply

Power supply header pin 6

GND

Power supply header pin 7

GND

For more detailed information please refer to Panasonic Grid-EYE Evaluation Shield [2].

For the Adafruit AMG8833 8x8 Thermal Camera Sensor [4] breakout board you can use the amg88xx_grid_eye_eval_shield shield designation as well.

The wiring has to be done according to Adafruit AMG8833 8x8 Thermal Camera Sensor Pinouts [5] and the pin assignment table mentioned above.

Panasonic Grid-EYE Evaluation Kit

The following table shows the complete pin assignment of the Grid-EYE Evaluation Kit.

Shield Connector Pin

Function

D6

Interrupt

D14

I2C SDA

D15

I2C SCL

Building

The samples/sensor/amg88xx application demonstrates the basic usage of the Panasonic Grid-EYE sensor.

If you want to build the application you have to use the --shield amg88xx_grid_eye_eval_shield shield designation accordingly when you invoke west build.

When using the PAN1780 evaluation board the build invocation looks like this:

# From the root of the zephyr repository
west build -b pan1780_evb --shield amg88xx_grid_eye_eval_shield samples/sensor/amg88xx

References