Hello everyone, I have a question: Does the Adafruit_AMG88xx library use instructions only available to an AVR-architecture controller? In other words, is the library applicable for the Arduino UNO R4? Background of my question: I’am using the GridEye with an Arduino UNO R4. On the statement T…

I checked the manual for the R4 Minima, and indeed Wire is the correct call. However, the manual also explains that the required pullup resistors are not included on the I2C SDA and SCL pins, so I2C communications will not work unless you add those. See https://docs.arduino.cc/tutorials/uno-r4-mi…

The Adafruit forum would be a better place to ask questions about Adafruit products. However, the library is written in C/C++ and does not appear to assume use of any particular processor.

Thank you for your answer Jremington, I mentioned the Adafruit library. That was a mistake, I meant the Sparkfun library. Sorry. It has to do with the display in my project, Adafruit library. I saw that the Sparkfun library is also written in C++. I’ll have to look further in it. Thanks again.

I can see that the latest release was in 2022. GitHub - sparkfun/SparkFun_GridEYE_Arduino_Library: Library for the Panasonic GridEYE Thermopile Array - AMG88 That means it does not support R4.

[image] dilshana: That means it does not support R4. The library date is irrelevant and the Sparkfun library code makes no assumptions about the processor. It is possible that minor modifications to the library might be needed for the R4, but you won’t know until you have installed the libra…

Thanks Dilshana & Jremington for your reactions. I’m going to try one or more example(s).

I tried examples 3 and 4. They act in the same way as my sketch; read errors -99 is returned. I’ll recheck the hardware.

Please post a link to the GridEYE module that you have. First, use the I2C address scanner program to determine if the correct I2C address is found. If it doesn’t, nothing can work. See this getting started guide: Qwiic GRID-Eye Infrared Array (AMG88xx) Hookup Guide - SparkFun Learn

I’m using a GY-AMG8833. I already changed the adress form x069 to x068. No succes. I’ll try the I2C scanner program.

Hi Frans , Example1-SerialVisualizer is working OK for me on an Arduino UNO R4 WiFi with the GridEYE connected via Qwiic. See screenshot below. On the R4 WiFi, the Qwiic connector is Wire1, not Wire, so I had to modify lines 51 and 53 to match. If you are using the R4 Minima, please be careful wi…

Hello Jremington and PaulZC, I tried a scanner program on the UNO R4 → No adress found. I tried the same on the UNO R3 → Adress 0x69 was found. I also tried Example4 on the UNO R3. It works ok. I also measured the SDA and CLK signals. They are in good shape. I tried example4 on the UNO R4. Foutco…

Adafruit Library for the GridEYE AMG8833

Sensors Imaging

jremington April 15, 2025, 6:55pm 12

Using Wire1, as instructed above?

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Adafruit Library for the GridEYE AMG8833

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