- Mon Apr 26, 2010 9:52 am
#99464
Everything on this project was going flawlessly, and I am embarrassed something so simple has halted me in my tracks! I am using the arduino to produce a 5V signal, I am trying to connect it to a 12V relay that will break an 24V DC circuit. Essentially the code works, and when the photo-eye sees a problem it will trigger the 12V to open the 24V to stop the motor in its place. My problem is amplifying the 5V signal. I have tried the TIP-102, MOSFET and 2N3904 transistors in this arrangement: http://www.arduino.cc/playground/upload ... driver.pdf and http://blog.lib.umn.edu/ali/2010ema8600 ... mosfet.jpg
At best, my 12V/24V relay will buzz. I know the relay is wired correctly as I have worked with these many times before; the codes is also correct as the LED's and buzzers are doing their job.
I feel like the problem is obvious, however I can't see it by myself. Can anyone point it out for me??? Thanks!
At best, my 12V/24V relay will buzz. I know the relay is wired correctly as I have worked with these many times before; the codes is also correct as the LED's and buzzers are doing their job.
I feel like the problem is obvious, however I can't see it by myself. Can anyone point it out for me??? Thanks!