SunFounder ESP32 Manual page 505

4.8.1 Required Components
In this project, we need the following components.
It's definitely convenient to buy a whole kit, here's the link:
Name
ESP32 Starter Kit
You can also buy them separately from the links below.
COMPONENT INTRODUCTION
ESP32 WROOM 32E
ESP32 Camera Extension
Breadboard
Jumper Wires
Resistor
Button
4.8.2 You Will Learn
• How the button work
• Reading digital pin and ranges
• Creating a conditional loop
• Adding a backdrop
• Playing sound
4.8.3 Build the Circuit
The button is a 4-pin device, since the pin 1 is connected to pin 2, and pin 3 to pin 4, when the button is pressed, the 4
pins are connected, thus closing the circuit.
4.8. 2.5 Doorbell
ITEMS IN THIS KIT
320+
SunFounder ESP32 Starter Kit
LINK
PURCHASE LINK
-
499