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MLX90640 Thermal Camera Breakout Wide angle (110°) Reviews

4.7 Rating 15 Reviews
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Michael Schwanzer
Verified Reviewer
It was really easy to get it working on my Raspberry Pi 3 A+, only 4 wires needed to connect it and the code from https://github.com/pimoroni/mlx90640-library worked right away, I am impressed.
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Posted 5 years ago
Justin Baird
Verified Reviewer
I used this in conjunction with a Pi Zero W and a Breakout Garden Mini for a no-soldering, low-cost DIY thermal camera. Worked like a charm. Using the python libraries available on github, I was able to process the data and stream it to a Processing app (based on example code found through Pimoroni) on my phone for real time display of the data. I'm identifying all sorts of gaps in my home's air sealing and inuslation with this sensor.
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Posted 5 years ago
I bought it from the Pi Hut, but given that is a Pimoroni product I give my review. I soldered the angle connector the wrong way around, and I plug it to the wrong row of the GPIO. I can say that this did not break the camera because it is against my brutality. After managing to detect the camera using i2cdetect and confirm it was there I compiled the test example. It worked fine and was funny to see my hand in a text mode using putty and ssh. I was running using a Raspberry Pi 4 with 2GB RAM. It was not connected to a monitor but was in headless mode. For that reason I compiled the rawrgb example and tweaked the command to run at 8 frames per second, that was using very little CPU given that the raspberry was running vncserver and chromium displaying the NoIR camera as well. I put this example in youtube: https://www.youtube.com/watch?v=zHQmrH7CZwA It is a quality product that do not break even that I put the headers in the wrong way. It is not as expensive as a FLiR but it has more resolution than AMG8833.
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Posted 5 years ago
Is there any program to change the I2C address? In order to avoid conflict while using multiple MLX90640 sensors.
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Posted 6 years ago
I wrote in a previous review that the compilation using simple I2C does not work. In fact it works perfectly. One has to install the proper library "libi2c-dev" before. The "video" demo has nevertheless still an issue and should be revised.
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Posted 6 years ago
The camera works with most of the given examples on the Raspberry Pi. I have problems with the "video" example that compiles on my Raspberry Pi zero W but not on my Pi 3. It seems related to the libavcodec library used. Anyway, the video program crashes before writing the video file. Some information provided is obsolete - not everything can be compiled (the generic I2C mode does not compile, only the one using bcm2835 library is working). In summary, it is a fun sensor but it needs better support.
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Posted 6 years ago
Chad Ermacora
Verified Reviewer
Looks pretty neat... but I didn't read the fine print before hand, and there's no Python support :( (As of Aug 27th, 2018) Hopefully this will change soon!
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Posted 6 years ago