Steve Marple
Open-source Raspberry Pi ADC hat
Uses the Microchip MCP3424 ADC. Various build options are possible, including single-ended and/or double-ended inputs to the ADC, separate analogue voltage supply (via DC-DC converter and linear regulator). Two open-drain outputs enable switching of fans, relays etc. There are connectors for the buffered I2C interface and a 1-wire interface.
I have several intended uses for these PCBs, including a Raspberry Pi magnetometer and a temperature sensor/fan controller board for an auroral camera.
For source files see github.com/stevemarple/RPi_ADC_hat
Open-source Raspberry Pi ADC hat
Uses the Microchip MCP3424 ADC. Various build options are possible, including single-ended and/or double-ended inputs to the ADC, separate analogue voltage supply (via DC-DC converter and linear regulator). Two open-drain outputs enable switching of fans, relays etc. There are connectors for the buffered I2C interface and a 1-wire interface.
I have several intended uses for these PCBs, including a Raspberry Pi magnetometer and a temperature sensor/fan controller board for an auroral camera.
For source files see github.com/stevemarple/RPi_ADC_hat