I have been looking for an answer for this for a few days now and keep getting information pertaining to the opposite. The sensors that I am trying to use. I know work with a 3.3v vcc.... The board that I am trying to swap them over to, has a 5v output. When I test with multimeter, the sensor shows 4.97 volts from vcc and to signal. When I trip the sensor there is no visible change. On the board that I know that it works on, it shows something like 1.8v to the vcc, and 3.3 to the signal. When I trip the sensor on that one, the 3.3v drops to 0 as I would expect that it should.I am assuming that the hint lies in the fact that the vcc and signal are close to being a multiple of each other... but I am far from understanding electrical. If anyone could let me know a way to get this working I would really appreciate it. Oh and I guess it would help to mention that the sensor is an optical sensor used as an end stop on a printer.
The board it is coming from is a Due based board, and the one it is going to is a Mega 2560 based board.... I dont think that matters though.
One last thing is I am not looking for a solution which involves going and buying some new sensors... I am only asking this because I am looking for a way to use the sensors that I already have. Thanks so much again for any info.