I purchased a Adafruit MLX90640 from ThePiHut this week, hooked it up and there seems to be 2 dead spots in resolution where it returns a temp of -273.1. in turn, I think this is blowing out the rest of the image due to the contrast between the temperatures.
I have attached a file for the temperature reading directly from the code provided in the github link below (you can see the 2 instances of 273.1). This is blowing out all the results from imaging libraries and rendering them useless.
Github link: https://github.com/adafruit/Adafruit_Ci ... n_MLX90640
I have also attached an image representation of the issue using the tutorial found here (https://makersportal.com/blog/2020/6/8/ ... d-mlx90640)
Anything I can do? or is it a replacement job?
Thanks in advance.
Adafruit MLX90640 Thermal Camera Issues
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- flitcroft56
- Posts: 1
- Joined: Fri Dec 03, 2021 1:12 pm
Adafruit MLX90640 Thermal Camera Issues
- Attachments
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- temperature image.png (68.5 KiB) Viewed 169 times
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- temp value output.txt
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- adafruit_support_mike
- Posts: 67446
- Joined: Thu Feb 11, 2010 2:51 pm
Re: Adafruit MLX90640 Thermal Camera Issues
Yeah, that looks like a couple of dead pixels in the sensor.. I've never seen that happen with an MLX90640 before.
Let the folks from The Pi Hut know we've approved a replacement. If you have any trouble, post back and we'll help however we can.
Let the folks from The Pi Hut know we've approved a replacement. If you have any trouble, post back and we'll help however we can.
Forum rules
Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/
Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/