Keyestudio ESP32 Manual page 120

ESP32 Starter Kit
Code
/*
keyestudio ESP32 Inventor Learning Kit
Project 19.2 Dimming Lamp
http://www.keyestudio.com
*/
int
led = 25;
int
pot = 34;
void
setup() {
// put your setup code here, to run once:
pinMode(led,OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
int value = analogRead(pot);
int led_val = map(value,0,4095,0,255);
value to the range we need
analogWrite(led,led_val);
}
116
//Define LED to IO25
//Define pot to IO34
//Set LED pin to output
//Convert the range of potentiometer analog␣
Chapter 8. Arduino Tutorial