Day 3 session will allow attendees to explore the circuit operation of an Analog to Digital Converter (ADC). Attendees will learn how to wire and setup an ADC on a Raspberry Pi 4. Also, ADC basics will be discussed in this session using hands-on lab activities. Attendees will learn about the PCF8951 ADC module. In addition, attendees will learn how to read analog values from a potentiometer using the Processing programming language.