Technical requirements
The following hardware is recommended for this chapter:
- Raspberry Pi Pico (link: https://bit.ly/3AJtoAf) – USD 4.
- Pico Omnibus – Dual Expander (link: https://bit.ly/3sr2GJR) – USD 10.50.
- Pico Wireless Pack (link: https://bit.ly/3yPuoT9) – USD 16.75.
- Automotive Gauge Stepper Motor (link: https://bit.ly/3FvHlFo) – USD 9.95.
- Adafruit DRV8833 Stepper Motor Breakout (link: https://bit.ly/3DkcgTb) – USD 4.95.
- Jumper Wires (link: https://amzn.to/3nmRI7L) – USD 5.99.
- Adafruit SCD-30 CO2 sensor (optional) (link: https://bit.ly/3l7MfQ6) – USD 58.95.
- A shadow box from your local hobby store.
- The code samples for this chapter are available at https://github.com/PacktPublishing/Raspberry-Pi-Pico-DIY-Workshop/tree/main/chapter_07.
Code in Action videos for this chapter can be viewed at https://bit.ly/3OXiHC5.
CircuitPython Installation
We are assuming that you have...