Cytron Maker Object Digital IR Proximity
Cytron Maker Object Digital IR Proximity Sensor
Overview
The Cytron Maker Object sensor is a digital infrared (IR) proximity sensor designed to detect nearby objects or obstacles. It's especially popular in robotics and automation projects because of its compact size, reliability, and ease of use.
Working Principle
The sensor emits infrared light (IR LED).
When an object is in front, the IR light reflects back to the receiver.
The sensor detects this reflection and triggers a digital output signal.
Key technology:
Uses 38 kHz modulated IR signal reduces false detection due to sunlight or ambient light.
Key Specifications
Parameter | Value |
Operating Vol Type | Digital (Active LOW) |
Output Circuit | NPN (Open collector with pull-up) |
Detection Range (Black surface) | 15 60 cm |
Detection Range (White surface) | 40 140 cm |
Frequency | 38 kHz IR modulation |
Protection | Reverse polarity protection |
Output Behavior (Very Important)
LOW (0) Object detected
HIGH (1) No object
This is called an Active LOW output, which beginners often get confused with.
Adjustable Range
There is a small adjustment screw/opening on the sensor.
You can tune detection distance depending on:
Object color
Environment
Application needs
Physical Features
90 pin header (easy mounting) Lightweight and suitable for small robots
Pin Configuration (Typical)
Usually 3 pins:
Pin | Description |
VCC | 5V supply |
GND | Ground |
OUT | Digital output |
Common Applications
This sensor is widely used in:
Robotics
Obstacle avoidance robots
Line-following bots (front obstacle detection)
Sumo robots
Automation
Automatic doors / gates
Parking detection systems
Entry/exit counters
DIY Projects
Smart bins
Security sensors
Object counters
Advantages
Immune to ambient light (thanks to modulation)
Long detection range for its size
Si beginners
Limitations
Distance depends on surface color & reflectivity
White longer range
Black shorter range
Not suitable for precise distance measurement (only detection)
Can struggle with:
Transparent objects
Very shiny surfaces
Compared to Other IR Sensors
Feature | Maker Object | Basic IR Module (TCRT5000) |
Range | Long (up to 140 cm) | Short (210 cm) |
Output | Digital | Analog + Digital |
Stability | High (38 kHz modulation) | Sensitive to light |
Use | Object detection | Line tracking |
When Should You Use It?
Use this sensor if you need: Simple object detection Easy Arduino/ESP32 integrati