HX711 scale amplifier where to buy / experience?

[r6502]

Hello all,

we have to evaluate 4 load cells at the same time, and found the HX711 chip, that has an internal reference, regulator for the load cell supply and can evaluate 2 load cells. Very interesting chip.

Has someone experience with this chip, and where to buy the chip itself - i can only find breakout boards with this chip, not the chip.

Any info is welcome.

Thanks  Guido

[Kean]

I've worked with the HX711 in the past, but I found it a bit annoying to work with.  If you don't get the read timing just right you can get spurious readings.

Apart from breakout PCBs and modules (i.e. Sparkfun, M5Stack - both available on Digikey) you can source the ICs from many random sellers on AliExpress.
If you are going to want a commercial relationship, then contact Avia Semiconductor directly. http://en.aviaic.com/detail/730856.html

There is a good Arduino library for the HX711 and lots of helpful info at https://github.com/bogde/HX711/

Personally, I switched to the Texas Instruments ADS1232 (back in 2015) and it has been a great solution for my wildlife monitoring systems.  I use this mostly for dynamic weighing of penguins, but also some other projects.