Install Arduino IDE 2.3.6

link

Register arduino cloud

link

1. get Device ID and Secret Key to replace DEVICE_LOGIN_NAME[] and DEVICE_KEY[] in thingProperties.h.
2. Add Varriables, setup Dashboard, create widget. check Reference for detail.

Add esp32 Board and build

1. File -> Preferences -> Additional boards manager URLs -> https://espressif.github.io/arduino-esp32/package_esp32_index.json
2. Boards manager -> search esp32 by espressif systems -> install
3. Lib manager -> ArduinoIoTCloud -> install
4. Select board DOIT ESP32 DEVKIT V1
5. config correct SSID[] and PASS[] in thingProperties.h.
6. Verify then Upload.
7. Install APP on your Android or iPhone to control.

GPIOs

Item	pin
I2C SCL	23
I2C SDA	18
relay	19
button	35
bled	14
wled	27

Demo

Reference

link