Technical requirements
This chapter is about learning how to make more use of the ESP32-based boards we looked at in the previous chapter. We will continue our journey using a small but capable board for our project in this chapter. We will need the following:
- Arduino software as the IDE and access to https://io.adafruit.com/.
- An Adafruit QT Py ESP32-S2 (you can use -S3 or the Feather HUZZAH from previous activities).
- NeoPixels of your choice, a heating pad, and a vibration motor.
- You will also need a 1N4001 diode, a 270 resistor, and a PN2222 transistor, breadboard, and hook-up wires.
