HW-488 Infrared Obstacle Avoidance IR Sensor Module

Product Description The HW-488 Infrared Obstacle Avoidance Sensor Module is a compact and reliable IR-based detection module designed for robotics and automation projects. It uses an infrared transmitter and receiver pair to detect obstacles within adjustable distances, providing digital HIGH/LOW output for easy integration with Arduino, ESP32, STM32, and Raspberry Pi. This module is widely used in line-following cars, obstacle-avoiding robots, smart vehicles, and IoT devices. With its adjustable sensitivity (via onboard potentiometer), low power consumption, and strong anti-interference capability, the HW-488 is a cost-effective choice for beginners and robotics enthusiasts. Available in Bangladesh from PowerMark Solution, this module is ideal for DIY robotics and STEM learning projects. Features IR transmitter and receiver pair for obstacle detection Adjustable detection distance via onboard potentiometer Digital output (HIGH/LOW) for easy microcontroller use Detection range: ~2cm – 30cm (adjustable) Strong anti-interference and stable performance Wide operating voltage: 3.3V – 5V DC Compact and easy-to-mount PCB design Compatible with Arduino, ESP32, STM32, Raspberry Pi Beginner-friendly, low-cost sensor for robotics   Sample Code: int detector = 8; // define the obstacle avoidance sensor interface int val ;   void setup () { pinMode(13, OUTPUT);     // Built in Arduino LED digitalWrite (13, LOW); pinMode (detector, INPUT) ;// define the obstacle avoidance sensor output interface }   void loop () { val = digitalRead (detector) ; if (val == HIGH) // When the obstacle avoidance sensor detects a signal, LED flashes { digitalWrite (13, HIGH); delay(100); } else { digitalWrite (13, LOW); delay(100); } } Applications Obstacle-avoiding robot cars Line-following robots with obstacle detection Smart vehicles and IoT systems Home automation and safety projects Object counting and detection systems STEM education and robotics competitions Technical Specifications Specification Details Model HW-488 Sensor Type Infrared (IR) transmitter receiver Output Type Digital HIGH/LOW Detection Range ~2cm – 30cm (adjustable) Adjustment Onboard potentiometer Operating Voltage 3.3V – 5V DC Operating Current ≤ 20mA Module Size ~3.2cm × 1.4cm × 1.2cm Package Includes 1 × HW-488 Infrared Obstacle Avoidance IR Sensor Module Documentation Works with Arduino IDE (digitalRead for obstacle detection). Compatible with ESP32, STM32, Raspberry Pi (GPIO input). Example codes available for robot navigation and obstacle-avoiding cars. FAQs Q1: What is the detection range of the HW-488 sensor?A: Around 2cm to 30cm, adjustable via potentiometer. Q2: Does it provide analog output?A: No, it provides digital HIGH/LOW signals. Q3: Is it compatible with Arduino UNO?A: Yes, directly via digital input pins. Q4: Can it be used with Raspberry Pi?A: Yes, using GPIO inputs. Q5: Does it work in dark environments?A: Yes, since it detects reflected infrared light. Q6: Is it beginner-friendly?A: Yes, widely used in entry-level robotics. Q7: Can the detection distance be adjusted?A: Yes, using the onboard potentiometer. Q8: What voltage does it require?A: 3.3V to 5V DC. Q9: Does it consume high current?A: No, typically ≤ 20mA. Q10: Is it suitable for robot competitions?A: Yes, commonly used in obstacle-avoidance and STEM robots.c