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Topic: Runing fan with parallel port (Read 4 times) previous topic - next topic


Hi everyone,
I am doing project using many chips and parallel port to run fan

But the problem , our circuit it doesn't run when we provide the voltage
We didn't use parallel port yet because just we want to test the circuit if it is work?


Dec 19, 2012, 08:38 pm Last Edit: Dec 19, 2012, 08:43 pm by Afnan Reason: 1
This is the circuit diagram

Wejust use the upper part , means we used just one uln 2803 chip


its the black wire thats the problem,

the one  just behind the pink one,



Which one do u mean?
The circuit has many wires :smiley-sad-blue:

Coding Badly

The last time I checked, Arduinos don't have parallel ports.  Are you certain you are posting your request for help on the correct forum?  Could you have meant your posts for a "PC automation" forum?

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