Description
Digital infrared obstacle avoidance sensors, ultra-compact, adjustable current 6mA for 3-100cm range In stock new
How it works: the sensor emits infrared light detection, based on reflection, if it detects an obstacle, the pin OUT output is 0, otherwise 1.
Operating voltage: 3.8 v-5.5 v
Operating current (at 5 V): typical current 6 mA
Input and output signals (3 lines):
VCC GND OUT
GND, power supply VCC, the VCC range 3.8v-5.5v
The following is the actual detection range of the field test:
Detection range (test environment, indoor, when the maximum power supply voltage is 5v power consumption is 6.5ma):
(1) white wall: 100 cm
(2) black IBM computer cover: 20 cm
(3) fingers: 18 cm
(4) palm of the hand: 30 cm
(5) a transparent ballpoint pen: 20 cm
A transparent ballpoint pen can be sensitive to detect.
We have datasheets available for all components, if not present in the product download sheet, send us a message through the contact us form and we will publish it as soon as possible on our website.
Tutorial: How to Use Infrared Obstacle Detection Digital Module
The infrared obstacle detection digital module is a useful device for projects that require the detection of objects at a distance. It is ideal for robots, drones, and any other project that requires the ability to avoid obstacles.
What you need
- Arduino Uno or compatible
- USB Connection
- 5V Power Supply
Steps
- Connect the VCC, GND, and OUT pins of the module to your Arduino.
- Configure the Arduino pin as a digital input in the software.
- Write a sketch that reads the pin state and prints the detected distance.
- Adjust the switch to select the desired detection range (2-50cm or 50-100cm).
- Check functionality with objects of various sizes at different distances.
Example code
void setup() {
Serial.begin(9600);
pinMode(A0, INPUT);
}
void loop() {
int sensorValue = digitalRead(A0);
Serial.println(sensorValue);
}
Mini project
Create an obstacle-avoiding robot that moves around a room and detects objects to avoid them.
Common mistakes
- Not properly configuring the pin as a digital input.
- Not adjusting the detection range switch.
- Using an inadequate power supply for the module (not 5V).
- Omitting the connection of VCC and GND pins.
Recommended accessories
- Arduino Stepper Motors
- Mobile Robot Base Kit
- 3D Print Cases for Projects
- Light Sensors
Frequently asked questions
How do you adjust the detection range?
Use the switch on the module to select between a detection range of 2-50cm or 50-100cm.
The module is not working, what to do?
Check all connections and ensure the module is properly powered with 5V. Also check the pin configuration on the Arduino.











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