This is a prototype voltage source. It uses a 16-bit DAC to create voltages from 1 mV to 2.5 V and is controlled by an ESP32-S3 microcontroller. The UI consists of a small screen and 3 buttons and a rotary dial. The modules are interconnected with I2C using Qwiic jumpers.
More details are at: https://github.com/TomWilkinson/DC_Voltage_Source_V1