I'm trying to use an industrial photoelectric sensor to detect the presence of grass seeds. I've tested it and the sensor works with detecting the seeds as it lights up orange whenever the object is close enough, however it isn't communicating that with the Arduino. I followed a pretty simple circui…

[image] olliepop1: I'm trying to use an industrial photoelectric sensor Got a part number? A link to the part might be useful, too.

cx-400_e_cata.pdf (4.8 MB) Here's the datasheet my model is the CX-441-P

Use INPUT_PULLUP instead on INPUT. Most devices are active LOW so your test should be: if ( ! digitalRead(7) ) You need some {}'s in your IF, do you want the delay(1000) to be in one path or both?

It's odd - see wiring on "258". Is the 12V source's Ground connected to Arduino GND, too?

Yes, the sensor is grounded to the Arduino.

Are you sure that is the sensor and that is its datasheet? Where is the pink sensor wire? Undoubtedly that sensor has a PNP output and the electrical diagram you have used is wrong, but before giving you a correct schematic I would like you to answer the previous questions or give me a link to wher…

Yes, that datasheet is for this specific sensor. I have the brown wire to 12v source, the blue to ground, and the pink to digital pin. This sensor was used by a previous group for a similar project, and they didn't use the black wire at all. The schematic I first posted was for a similar sensor, so …

Using Panasonic Industrial Photoelectric Sensor with Arduino

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olliepop1 May 29, 2022, 2:03am 6

I changed the input to the pullup and added {} and now it's just reading object detected all the time even when there isn't one.

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Using Panasonic Industrial Photoelectric Sensor with Arduino

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