SunFounder ESP32 Starter Kit
The system uses a DHT11 sensor to measure the temperature and humidity levels of the surrounding environment.
Meanwhile, a soil moisture module is used to measure the moisture level of the soil and a photoresistor is used to
measure the light level. The readings from these sensors are displayed on an LCD screen, and a water pump can be
controlled using a button to water the plant when needed.
IO32 has an internal pull-down resistor of 1K, and by default, it is at a low logic level. When the button is pressed, it
establishes a connection to VCC (high voltage), resulting in a high logic level on IO32.
Wiring
Note: It is recommended here to insert the battery and then slide the switch on the expansion board to the ON position
to activate the battery supply.
126 Chapter 1. For Arduino User
To Next Page
Loading...
Need help?
General