RPR220 Reflective Optical Sensor Module NPN Output 10pcs

RPR220 Reflective Optical Sensor Modules – NPN Output, 5mm Detection Range

The RPR220 Reflective Optical Sensor Module is a compact, high-reliability optoelectronic component designed for precise object and surface detection in automation, robotics, and electronic projects. With an NPN switching output and a focused 5mm detection range, this module delivers consistent, repeatable triggering — making it an essential building block for engineers, makers, and hobbyists alike.

Key Features

• NPN Switching Output: Compatible with a wide range of microcontrollers and PLCs for seamless integration into digital circuits.
• 5mm Reflective Detection Range: Accurately detects nearby surfaces and objects with minimal false triggering.
• Compact Polymer Housing: Lightweight and durable construction stands up to everyday industrial and hobby use.
• Reflective Optical Design: Uses an integrated IR emitter and photodetector — no separate transmitter/receiver alignment needed.
• Customizable: Available for custom configurations to suit your specific application requirements.
• Pack of 10: Great value multi-pack, ideal for prototyping, batch builds, or keeping spares on hand.

Specifications

Typical Applications

• Line-following and edge-detection robots
• Object presence detection on conveyor systems
• Encoder disk and rotary speed sensing
• Proximity triggering in automated machinery
• DIY Arduino, Raspberry Pi, and microcontroller projects

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Frequently Asked Questions

Q: What is the RPR220 Reflective Optical Sensor Module used for?

A: The RPR220 is a reflective optical sensor module commonly used in industrial automation, line-following robots, rotary encoders, and object proximity detection. Its NPN switching output makes it easy to interface with microcontrollers, PLCs, and other digital logic systems.

Q: What output type does the RPR220 sensor module use?

A: The RPR220 features an NPN switching transducer output, which is a standard open-collector type widely compatible with Arduino, Raspberry Pi, and most industrial control systems. It outputs a LOW signal when a reflective surface is detected within the ~5mm range.

Q: How many sensor modules are included in this listing?

A: This listing includes a pack of 10 RPR220 Reflective Optical Sensor Modules, giving you excellent value whether you're prototyping a new design, building in bulk, or keeping spares for your existing setup.

Q: Is the RPR220 module compatible with Arduino or Raspberry Pi?

A: Yes! The RPR220's NPN output is fully compatible with Arduino, Raspberry Pi, ESP32, STM32, and most other popular microcontroller platforms. Simply connect it to a digital input pin with an appropriate pull-up resistor for reliable detection readings.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.