HS-KEY4-L 4P switch module

1. Introduction

2. Schematic

Module Parameters

• Power Supply Voltage: 3.3V / 5V

• Connection method: PH2.0 terminal wire

• Installation method: Modular fixed

4, Circuit Board Size

5 of Arduino IDE example program

Example program (UNO development board): Click to download

volatile int led;
volatile int light;
volatile int vaule;

void setup(){
  Serial.begin(9600);
  led = 6;
  light = 0;
  vaule = 0;
  //led接D6，四位模拟按键模块接A0
  pinMode(A0, INPUT);
}

void loop(){
  vaule = analogRead(A0);
  Serial.println(vaule);
  analogWrite(led, light);
  if (vaule < 565 && vaule > 555) {
    //关灯
    light = 0;

  } else if (vaule < 640 && vaule > 630) {
    //微亮
    light = 15;
  } else if (vaule < 720 && vaule > 710) {
    //亮
    light = 100;
  } else if (vaule < 860 && vaule > 850) {
    //非常亮
    light = 255;
  }

}

Example Program (ESP32 Development Board — Based on Python language, cannot be uploaded using Arduino IDE):

6, Miciqi Mixly Example Program (Graphical Language)

Example program:Click to download

Example Program (ESP32 Development Board): Click to download

7, Test Environment Setup

Setting up the Arduino Environment

Prepare Components:

• HELLO STEM UNO R3 DEVELOPMENT BOARD *1

• HELLO STEM UNO R3 P EXPANSION BOARD *1

• USB TYPE-C DATA CABLE *1

• LED module (HS-F08L) *1

• 4-Digit Push Button Module (HS-KEY4-L) *1

• PH2.0 3P dual headed terminal line *1

• PH2.0 6P dual head terminal line *1

Circuit wiring diagram:

Set up Micropython environment

Prepare Components:

Circuit wiring diagram:

8. Video tutorial

Video tutorial: Click to view

9. Test conclusion

After the device is connected to the wire, burn the above program to the UNO-R3 PRO development board and then connect the power supply. Pressing different buttons will also change the brightness of the LED.