HS-KEY4-L 4P switch module

1. Introduction

2. Schematic

4P Pushbutton Module-HS-KEY4-L SchematicClick to view

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

Attention: If prompted with an error message about the library file during program upload, please import the library file first!
Arduino IDE Library Download and Import Tutorial:Click to view

Example program (UNO development board):

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;
  }

}

6, ESP32 Python Example (for Mixly IDE/Misashi)

Choose the development board Python ESP32 [ESP32 Generic(4MB)] and upload in code mode

Attention: If prompted with an error message about the library file during program upload, please import the library file first!
Download and import tutorial for Mixly IDE ESP32 library:Click to view

Example program (ESP32-Python):

待更新...

7, Mixly example program (graphical language)

Example program (UNO development board):Click to download
Attention: If prompted with an error message about the library file during program upload, please import the library file first!
Download and import tutorial of Mixly IDE Arduino library:Click to view

Example Program (ESP32 Development Board):Click to download
Attention: If prompted with an error message about the library file during program upload, please import the library file first!
Download and import tutorial for Mixly IDE ESP32 library:Click to view

Image pending update...

8. Setting up the Test Environment

Arduino UNO Test Environment Setup

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:

ESP32 Test Environment Setup

Prepare Components:Pending update...

Circuit wiring diagram:Pending update...

9, Video tutorial

Video tutorial:Click to view

10, Test results

Arduino UNO test results:

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.