HS-S01A Infrared Sensor (Tracking Module)

1. Introduction

The infrared emission and reception head of the infrared detection (tracking) module is greatly interfered by environmental light, generally speaking, the closer to the reflective surface, the better the effect.The infrared detection (tracking) module has a potentiometer on the back. By adjusting the potentiometer, the threshold of the module can be adjusted to output the corresponding digital signal.Adjusting the voltage of the potentiometer can adjust the detection distance of the infrared sensor.When the LED blue light just extinguishes, the detection distance is the farthest.If the LED blue light is always on or not lighting up, you can adjust the potentiometer.Turn the LED blue light to just off.Operating voltage: 3.3～5V.Check the reaction distance: 1-50mm.

2. Schematic

Infrared Detection Sensor-HS-S01B SchematicClick to view

Module Parameters

Pin Name	description
G	GND (Negative Power Input)
V	VCC (Positive Power Input)
S	Digital Signal Pin
A	Analog Signal Pin

Power Supply Voltage: 3.3V / 5V
Connection Type: 2.54mm Header
Installation Method: Double Screw 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):

void setup(){
  Serial.begin(9600);
  pinMode(3, INPUT);
}

void loop(){
  delay(500);
  if (digitalRead(3) == 1) {
    Serial.println("未检测物体");

  } else if (digitalRead(3) == 0) {
    Serial.println("检测到物体");
  }

}

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):

import machine


pin2 = machine.Pin(2, machine.Pin.IN)
while True:
    if pin2.value() == 1:
        print('未检测到物体')
    else:
        print('检测到物体')

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

8. Setting up the Test Environment

Arduino UNO Test Environment Setup

Prepare Components:

HELLO STEM UNO R3 PRO DEVELOPMENT BOARD *1
USB TYPE-C DATA CABLE *1
Infrared Detection Sensor Module (HS-S01A) *1
1P female to female DuPont wire *3 pieces or 3P female to female DuPont wire *1 piece

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: