Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Brand | Hanray |
| Model Number | HR-IR-4CH |
| Sensor Type | Infrared Reflective |
| Number of Channels | 4 |
| Operating Voltage | DC 3.3V to 5V |
| Output Type | Digital Switching Signal (0 and 1) |
| Comparator Chip | LM393 Quad Comparator |
| Detection Distance | 1cm to 3cm (Adjustable) |
| PCB Dimensions | 38mm x 29mm x 4mm |
| Weight | 15 grams |
Anonymous
Mar 21, 2026
Rating: 3/5
Struggles in sunlight
Works indoors fine but outdoor direct sunlight interferes with the IR sensors. Expected for this price point though.
Anonymous
Mar 16, 2026
Rating: 5/5
Perfect for line followers
My robot follows the line smoothly without jittering. The digital output makes interfacing with microcontrollers very simple.
Anonymous
Mar 16, 2026
Rating: 5/5
Fast Delivery
Arrived early and well packaged. All four channels were tested and working out of the box. Highly recommend this seller.
Anonymous
Feb 03, 2026
Rating: 4/5
Good value
Sensitive enough but needs tuning depending on ambient light. For the price, it is a solid choice for hobbyists.
Anonymous
Jan 25, 2026
Rating: 5/5
Great for Arduino Projects
Works perfectly with my Arduino Uno. The sensitivity is easy to adjust using the potentiometers. My line follower robot runs smoothly now.
Q: Is this compatible with Raspberry Pi GPIO?
A: Yes, it works with Raspberry Pi. Please ensure you connect it to the 3.3V pin to match the logic levels safely.
Q: Does it come with jumper wires?
A: No, jumper wires are not included. The module comes with header pins installed for easy breadboard use.
Q: How do I adjust the sensitivity?
A: Use the blue potentiometers located on the PCB. Turn them clockwise or counter-clockwise while testing over your track.
Q: What is the current consumption?
A: Typically around 20mA when all LEDs are active. This may vary slightly based on the supply voltage used.
Q: Can it detect white lines on a black surface?
A: It is primarily designed for black lines on a white surface. Detecting white on black may require inverting the logic in your code.
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