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tatobari / hx711py

HX711 Python Library for Raspberry Pi.
Apache License 2.0
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Accuracy to 0.1g #13

Closed crishellco closed 6 years ago

crishellco commented 6 years ago

Is it possible to read to 0.1g accuracy? I am using 3 of these load cells: https://www.amazon.com/gp/product/B00R1J9DZ6.

Thanks, Chris

tatobari commented 6 years ago

Hey Chris, The best resolution I've achieved using a similar 20kg loadcell is 10g, and I had to calibrate everytime and do some complex math to compensate the load cell's variation graphic. Temperature, noise, and other factors contribute to an error way above 0.1g.

The smaller the cell scale, the better the resolution.

However, there are other Amplifier ADCs and WAY more expensive cells which you could try.

Tato

On Jul 31, 2017 6:30 PM, "Christopher Mitchell" notifications@github.com wrote:

Is it possible to ready to 0.1g accuracy? I am using this load cell: https://www.amazon.com/gp/product/B00R1J9DZ6.

Thanks, Chris

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tatobari commented 6 years ago

Closing this for now.