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Topic: Problem with loadcell chip hx711 (Read 441 times) previous topic - next topic

moham14

Hi,

For a digital scale project I've connected Arduino mega 2560 to the loadcell by a hx711 chip.
Everything works fine and I get the weight.  The number which I get from hx711 should be multiplied by a number to get the weight in grams. The number which I get for a weight like a 500 gr one,
is not stable. I think this is normal. So I cut the weights lower than 5 grams and I finally get the weight by  5 gram distances,  Like 0, 5, 10, ...
So far, Everything is OK and the weight is stable. But after a while for example 10 ... 20 seconds  the weight goes up and down for 1 or 2 seconds and then stable again.

I powered hx711 with 5v , GND of arduino.

How can I fix this?

Any help would be greatly appreciated!

sadat007

Dear, You have to make your own algorithms for stable weighing. like median, long term average (new values with low impact on average and so stable values or high impact with unstable values) it is tricky task. Good luck with smart programming. :)

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