search

bogde / HX711

An Arduino library to interface the Avia Semiconductor HX711 24-Bit Analog-to-Digital Converter (ADC) for Weight Scales.
MIT License
901 stars 540 forks source link

Incorrect result with Two loadcells #43

Open alexandra110 opened 8 years ago

alexandra110 commented 8 years ago

Hi every one When i connect two loadcells via junction box to hx711 A input i got some values that changes not in linear form.it means that when the load is more than a special value , hx711 sends lower values instead of higher ones. Can every one help me?

electrokean commented 8 years ago

This could be a software or hardware issue. On the software side, the only thing that comes to mind is the discussion in this issue: https://github.com/bogde/HX711/issues/23 If that doesn't solve it, then you'll need to provide more info, like load cell details (type/model/capacity), approx. weight level that triggers the issue, a diagram and/or photo of your wiring, and your Arduino sketch

electrokean commented 8 years ago

In reference to issue 23, I see there was a patch committed last year. It is possible that this doesn't work as expected, so you could try reverting that. See https://github.com/bogde/HX711/pull/17/commits/1f9aaee116ce9463bbc4a310beea4d24d0ff7a1b for the changes

alexandra110 commented 8 years ago

No one???

alexandra110 commented 8 years ago

Thanks for your help. How wiring can make these kind of errors?

alexandra110 commented 8 years ago

I read link you refered. it was very helpful. thanks for your help. Base on this it is possible that i don't read hx711 output correctly , so i misunderstand that the output changes is not linear. is it true?

electrokean commented 8 years ago

Hi @alexandra110 I see you're new here. Welcome! Please keep in mind that github is not a general support forum. It is for reporting issues with the software provided. We need to determine what your issue is, and whether it is a software issue, or something else. So for anyone here to help you, you will need to provide a lot more detail on your setup and exact problem. At this point we will just be guessing.

alexandra110 commented 8 years ago

Yes.i'm new here. Tanks. I didn't know that. Ok i will come back with details

FabianInostroza commented 8 years ago

Did you solved it?

alexandra110 commented 8 years ago

I couldn't spend time for this project any more. I will deal with that problem in coming week and share the result in this site.

FabianInostroza commented 8 years ago

Try the changes I've made in my fork. I'm using similar code reading a single load cell in channel A and works fine.

alexandra110 commented 8 years ago

I also used single load cell with channel A, you are right, it works fine. But the problem appears whe l add two loadcell output then using channel A. I guess that it is hardware problems.i will check it.

EvertonCosmo commented 5 years ago

@alexandra110 Did you solved it ? I have same problem

alexandra110 commented 5 years ago

unfortunately no... i didnt spend any more time for it

On Sun, Dec 9, 2018 at 10:45 PM Everton Cosmo notifications@github.com wrote:

@alexandra110 https://github.com/alexandra110 Did you solved it ? I have same problem

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/bogde/HX711/issues/43#issuecomment-445563284, or mute the thread https://github.com/notifications/unsubscribe-auth/AVGQNRoEkP3zEHPRhTLIijtvWwZuyj5uks5u3WFWgaJpZM4J5094 .