*Note: The EN (Enable) pin is rarely populated on standard breakout boards; usually, the sensor is always enabled.
The FC-51 module almost always comes with a standard 3-pin male header (0.1" spacing). However, found in the wild. Always verify with a multimeter before connecting. Fc 51 Ir Sensor Datasheet
If you are building a line-following robot, a tachometer, or a proximity alarm, chances are you’ve stumbled upon the . It is one of the most ubiquitous, low-cost infrared obstacle avoidance sensors on the market. *Note: The EN (Enable) pin is rarely populated
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