Review on Enhance Raspberry Pi with High-Precision AD/DA Functions: Raspberry Pi AD/DA Expansion Shield Board featuring ADS1256 DAC8552 Sensor by Omar Thorndike

I just launched mine. I would get 5 stars if the documentation was a bit better, but using their documentation in combination with the documentation for the TI chip works fine. correct registry settings. I also like having pins to test with, not just screw terminals. I use mine to measure amps and volts so I have two pins that measure 0-4 volts and two others that measure millivolts. My amp readings appear to be normal, even with low amp readings. My shunt is 0.0001 volts/amp. I don't use PGA or on-chip buffering at all, just read it as it comes in. I'm using JS with NodeJS to manage it and it works fine.