HS-S28-L Rotating Potentiometer

1. Introduction

2. Schematic

Module Parameters

• Power Supply Voltage: 3.3V / 5V

• Connection method: PH2.0 terminal wire

• Installation Method: Double Screw Fixed

4, Circuit Board Size

5 of Arduino IDE example program

Arduino UNO Example (for Mixly IDE, Arduino IDE):

volatile float Voltage;
volatile float data;
volatile int light;

void setup(){
Serial.begin(9600);
Voltage = 0;
data = 0;
light = 0;
pinMode(6, OUTPUT);
}

void loop(){
//电位器接A0；led灯接D6

data = analogRead(A0);
Voltage = (data / 1023) * 5;
light = (map(constrain(analogRead(A0), 0, 1023), 0, 1023, 0, 255));
Serial.print("Voltage is:");
Serial.print(Voltage);
Serial.print("V");
Serial.print(" light is:");
Serial.println(light);
analogWrite(6, light);
delay(100);

}

ESP32 Python Example (for Mixly IDE / Micskit)
(Choose the Python ESP32 [ESP32 Generic(4MB)] to switch to code mode upload):

import machine
from mixpy import math_map


value = 0
light = 0
adc32 = machine.ADC(machine.Pin(32))
pwm2 = machine.PWM(machine.Pin(2))
while True:
value = adc32.read_u16()
light = (math_map(value, 0, 65535, 65535, 0))
pwm2.duty_u16(int(light))

6, Miciqi Mixly Example Program (Graphical Language)

Arduino UNO Graphical Example Program:Click to download

ESP32 Python Graphical Example Program:Click to download

7, Test Environment Setup

Arduino UNO Test Environment Setup

Prepare Components:

• UNO-R3 Development Board *1

• UNO-R3 P Expansion Board *1

• USB TYPE-C DATA CABLE *1

• LED module (HS-F08L) *1

• Rotary Potentiometer Module (HS-S28L) *1

• PH2.0 3P dual-head terminal line *2

Circuit wiring diagram:

ESP32 Python test environment setup

8. Video tutorial

Arduino UNO video tutorial:Click to view

ESP32 Python Video Tutorial:

9. Test conclusion

Arduino UNO Test Conclusion:

ESP32 Python test conclusion:

By adjusting the potentiometer rotation knob, the brightness of the LED light can be controlled. The potentiometer is equivalent to a variable resistor that can adjust the brightness of the LED light.