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90640 IR camera
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

Re: 90640 IR camera

by adafruit_support_carter on Thu Dec 02, 2021 12:14 pm

The setup you mention in your first post, using the MLX90640 camera with the Feather ESP8266, is no longer available?

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Re: 90640 IR camera

by alainsam on Thu Dec 02, 2021 1:36 pm

Like I said it is in a box collecting data, if you insist I will take a picture of it but you won't see the connections that are the same as used during the tests:
wire color connected to
RED 5V
BLACK Ground
YELLOW CLK
BLUE SDA

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Re: 90640 IR camera

by adafruit_support_carter on Thu Dec 02, 2021 1:59 pm

Just confused about what has changed since original post which references a Feather ESP8266 and the MLX90640? That hardware is no longer available?

Now we are troubleshooting a Feather ESP32 with an AMG88xx?

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Re: 90640 IR camera

by alainsam on Thu Dec 02, 2021 3:28 pm

No, it is still the 8266 board that did not work with the 90640.

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Re: 90640 IR camera

by adafruit_support_carter on Thu Dec 02, 2021 8:27 pm

OK, let's get back to figuring out why you can't see anything in the serial monitor, since that will help troubleshooting everything else.

Try running this sketch:
Code: Select all | TOGGLE FULL SIZE
int count = 0;

void setup() {
  Serial.begin(9600);
}

void loop() {
  Serial.print("count = "); Serial.println(count++);
  delay(1000);
}


and verify you can open the Serial Monitor and see the expected output:
Screenshot from 2021-12-02 16-23-48.png
Screenshot from 2021-12-02 16-23-48.png (22.33 KiB) Viewed 104 times

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Re: 90640 IR camera

by alainsam on Fri Dec 03, 2021 1:19 am

I changed the USB cable and now the monitor screen shows the counting correctly with your test. And also "magically " it works with the AMG88xx_test. Damn it! I changed the cable before and it was still not working.... Tomorrow I will test again the 90640 with this new cable and let you know the result.

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Re: 90640 IR camera

by adafruit_support_carter on Fri Dec 03, 2021 12:58 pm

Bad USB cable strikes again :) Glad you figured it out. Amazing how often that unfortunately happens. Can be very frustrating.

OK, report back what happens when you try the MLX90640 again and we'll proceed from there.

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Re: 90640 IR camera

by alainsam on Mon Dec 06, 2021 7:07 pm

I still get a blank screen on the monitor with the 8266 and the 90640 camera: I made sure that I have the working USB cable.
Is it possible that the 8266 doesn't work with this camera?

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Re: 90640 IR camera

by adafruit_support_carter on Mon Dec 06, 2021 7:20 pm

Should work OK with ESP8266.

Try running this I2C scanner sketch:
https://learn.adafruit.com/scanning-i2c ... es/arduino

and verify you can at least see the MLX90640's address:
Screenshot from 2021-12-06 15-17-00.png
Screenshot from 2021-12-06 15-17-00.png (25 KiB) Viewed 84 times

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Re: 90640 IR camera

by alainsam on Mon Dec 06, 2021 7:55 pm

Scanning...
I2C device found at address 0x33 !
done

Scanning...
I2C device found at address 0x33 !
done
This work...

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Re: 90640 IR camera

by alainsam on Fri Dec 10, 2021 3:34 pm

It works with the test that you asked me to run but it still doesn't work with the camera. Note that I tested the camera with an ESP32 and that works...

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Re: 90640 IR camera

by adafruit_support_carter on Mon Dec 13, 2021 1:47 pm

OK, something does seem to be happening with ESP8266. This used to work, so not sure what has changed. I did some testing and was able to get the issue down to a simple example sketch and opened an issue here:
https://github.com/adafruit/Adafruit_MLX90640/issues/2

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Re: 90640 IR camera

by alainsam on Mon Dec 13, 2021 3:13 pm

Ok, I can send you the board if it can be useful?

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Re: 90640 IR camera

by adafruit_support_carter on Mon Dec 13, 2021 3:26 pm

Thanks, but it seems like something we are able to recreate here with all the same hardware. So it's not specific to your actual hardware. Should just be a software issue. Keep an eye on that issue thread.

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Re: 90640 IR camera

by alainsam on Mon Dec 13, 2021 5:06 pm

OK, Thanks!

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Please be positive and constructive with your questions and comments.