Touchless Encoder

This small board is the quickest way to measure speed or position on almost any rotating or sliding mechanism. Simply mount the PCB facing the object to be measured, and apply a contrasting mark to the object Electrical Tape or black permanent marker work well on metallic surfaces. Silver marker or white paint work well on dull ones. Most targets can be measured accurately between 0.5 and 1.5in. When connected to a 5V supply, the TLEN sensor will output a pulse (High-Bright/Reflective. Low-Dark) for each mark on the object being measured. This enables the sensor to be used for speed sensing, counting rotations, or basic object detection. As a speed sensor, the TLEN R2 is rated up to 30,000RPM, but will often perform acceptably over 40,000RPM