Technical requirements
For this chapter, we will need the following hardware and software components:
- ESP32 dev kit
- Capacitive soil moisture sensor
- DHT22 temperature and humidity sensor
- Google account
- The CallMeBot API
- The Twitter API
- WhatsApp and Telegram accounts
All the code files used in this chapter will be available at https://github.com/PacktPublishing/Programming-ESP32-with-Arduino-IDE/tree/main/Chapter6
First, let’s interface the sensors that will help us gather some useful data from our plant.