Proximity Sensor | M12 4mm Sensing | 5V DC for MCU Projects

This M12 sensor finds metal objects up to 4mm away. It works without touching them. It's an NPN inductive sensor that uses 5V DC. You can plug it right into most microcontrollers. This one has a Normally Open (NO) output. Features and Benefits - 5V DC Power - Plugs directly into a 5V power supply on an Arduino or other microcontroller. No other parts are necessary. - NPN Normally Open Output - The sensor connects the signal line to ground when it sees something. This is a common setup in factories. - 4mm Detection Range - It reliably senses things for tracking machine parts or checking if an object is there in small spaces. - M12 Threaded Body - This M12 cylinder shape is standard. It's easy to mount with regular brackets and hardware. Applications - Home Automation Projects - Use it as a limit switch in your own machines or to count metal items on a small conveyor. - 3D Printers & CNC Machines - Many people use it for auto bed leveling or as a homing switch on a Z-axis. - Electronics Learning - It's a good way to learn about industrial sensors. The 3-wire NPN setup is easy to connect. What It Is This is a cylindrical proximity sensor with an M12 thread size, designed for use in various electronics projects. Proximity sensors are non-contact electronic devices that detect the presence or absence of nearby objects without physical contact. This particular sensor operates on 5V DC, making it suitable for integration with micro-controller units (MCUs). It has a sensing distance of 4mm and offers both Normally Open (NO) and Normally Closed (NC) output states, as well as NPN and PNP output types, providing flexibility for different circuit designs. Key Uses & Applications This M12 proximity sensor is ideal for MCU projects requiring reliable object detection. Its 4mm sensing distance makes it suitable for precise positioning, counting, and automation tasks. Given its 5V DC operating voltage, it integrates seamlessly with common electronics modules. Typical applications include robotic projects for obstacle avoidance, automated sorting systems, and monitoring the presence of components on a production line. The choice between NPN and PNP output types, along with NO and NC states, allows for versatile implementation in various control circuits. How to Choose When selecting a proximity sensor, consider the thread size; this model features an M12 thread. The operating voltage is crucial for compatibility; this sensor requires 5V DC, making it suitable for MCU projects. Evaluate the required sensing distance; this sensor offers 4mm. Determine the necessary output state (Normally Open or Normally Closed) and output type (NPN or PNP) to match your control system. To test a proximity sensor, apply the correct operating voltage and observe the output change when an object is brought within the sensing distance.