Quantity   Component name
2 × Analog Devices AD5242 2ch i2c digital potentiometers. 1M needed to get full range.
1 × NXP PCAL6416A 16 ch i2c io expander.
1 × Generic Node32s Module
1 × TI TXS0104E Level shifter for i2c bus
1 × MIC2775 Voltage supervisor 4.6V