A project log for A Cheap 24-bit Differential ADC for Raspberry Pi

Making the HX711 into a more general purpose differential data acquisition module with an interface to Raspberry Pi.

bud-bennettBud Bennett 07/11/2017 at 16:300 Comments

The inputs to the ADC are very sensitive to any kind of electrical interference. I recommend that you shield *everything*!

I wrapped the board in electrical tape and then covered it and the sensor leads with copper foil connected to GND.

This made a huge reduction in artifacts in the signal.