โมดูลตัวต้านทานปรับค่าได้ Electronic building blocks, rotary potentiometer, analog knob module, rotary encoder module

โมดูลตัวต้านทานปรับค่าได้ Electronic building blocks, rotary potentiometer, analog knob module, rotary encoder module Characteristics: High quality rotary electric appliance, stable performance smooth movement Output 0 - VCC analog voltage signal Specification: 1.Size: 26*20mm 2.Weight: 5g 3.Voltage: 3.3V, 5V 4.Port: Analog 5.Resistance: 100K 6.Rotation angle: 270 degrees 7.Platform: Arduino, MCU, ARM, Raspberry Pi Connect the S port of the rotating potentiometer electronic block to the A0 end of the Arduino plate,and use the following program to read its simulation value.Through the simulation value to set the LED brightness. const int led = 9; // the pin that the LED is attached to int brightness = 0; // how bright the LED is void setup() { // declare pin 9 to be an output: pinMode(led, OUTPUT); } void loop() { brightness = analogRead(A0); //use A0 to read the electrical signal brightness = map(brightness, 0, 1023, 0, 255); // set the brightness of pin 9: analogWrite(led, brightness); }