Description

MH Sensor Series

This is an easy to use sensor module you can use to sense the presence of all type of object, including living things, as long as the object being sense is not completely transparent. This is the famous sensor that you can use in many school projects for counting, alarming, triggering and actuator activation purposes. You can use this sensor for sensing black and white lines, suitable for making optical pattern projects and line following robots. Also, you can use this sensor to sense frequency of object.

Note : this sensor only works in DIGITAL mode. You can connect the digital output (DO) to sense. Adjust the potentiometer (a.k.a. trimmer) to set the digital output (DO) sensitivity.

Specific Features

• Comes with a pair of 5mm infrared LED (emitter) and photodiode (receiver) work as reflect optical sensor
• Wavelength : 940 nm
• Output type : Digital
• Model code : FC-51

 

Common Features

• Logical IC : LM393
• Operating voltage : 3.3 – 5V
• Output current : ?15 mA
• Adjustable sensitivity via potentiometer
• Comes with LED indicators for POWER and OUTPUT
• Fixed bolt holes for easy installation

 

Wiring

Label	Meaning	Connection
VCC	Power source	Connect to 3.3V or 5V of system
GND	Ground	Connect to GND of system
DO	Digital Output	Connect to any digital IO pin

 

Attachments

• Tutorial : How to use the FC 51 InfraRed proximity/obstacle avoidance sensor with Arduino – SurtrTech
• Tutorial : Detecting Obstacle with IR Sensor and Arduino – PlayEmbedded