Hello this is my first post, and I am looking for some hardware advice. So my project is using 6 retroreflective sensors, and host of LEDs all controlled by an Arduino Mega. My project will have a 12VDC power supply that will supply power to the Arduino and the retroreflective sensors. The sensor…

Arduino Mega and sensor voltage

qckslvr September 27, 2021, 8:36pm 3

when the sensor is tripped or closed it creates a connection to the ground (NPN).

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