1CommentsGdynia, PolandJoined December 13th, 2015
Software Developer trying to move hardware development into Python :)
  • KonradB2 commented on sdfgeoff's instructable Cheap Sensors: RPR2202 years ago
    Cheap Sensors: RPR220

    Very helpful to get started and get sensible results from this sensor, thanks! Side note for using it as a white line sensor - it is wildly sensitive to ambient IR light (emitted by lightbulbs and warm colored LEDs). To get a marked difference between black and white, you have to completely isolate the sensor from ambient light.BTW your schematic has the diode symbol in reverse - the pinout is right, but from looking a the picture you get the impression you connected the diode in reverse.

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