Quote:
|
Originally Posted by CPUguy387
We ordered 2 more FETs just incase. Before I put the one on my second beacon, I just wanted to make sure which digram is correct. Is this one still wrong? http://www2.usfirst.org/2004comp/Inf...ng_diagram.pdf Should I still reverse the pins 2 and 3? I just wan to make sure again before I order more. |
That circuit is incorrect.
Luckily the FET seems to be internally protected against hooking it up incorrectly or teams would have been burning them out right and left.
On the FET looking at the front (with the metal ground plate at the back)
pin 1 on the left goes to the white (signal) wire on the PWM cable from the EDU controller.
pin 2 goes to the negative side of the circuit you built.
pin 3 goes to the black PWM wire (common or ground) from the EDU controller.
You can see an updated circuit diagram Kevin Watson posted at
http://kevin.org/frc/ beacon_transmitter_2.pdf
You can only see your circuit running with a digital camera, or by hooking up one of the IR sensors to a digital input like 6 and adding a printf to print the value of rc_dig_in06 in the beacon code.