I've build several circuits using the ULN2803 Darlington array to switch my output devices -- usually high power LEDs. The LEDs alongwith their resistors have been connected as per the circuit shown on page 7 of part 3 of the manual, "Standard Circuits 2 - Using a Darlington Driver IC", which results in the LEDs all having a common +ve.
Is it technically possible to connect the individual +ve legs of the LEDs to the 2803 outputs, and connect the negative legs (via appropriate resistors) to the common ground instead? I appreciate that, if that works, the commands for ON and OFF will have to be reversed to get the same results.
Is it technically possible to connect the individual +ve legs of the LEDs to the 2803 outputs, and connect the negative legs (via appropriate resistors) to the common ground instead? I appreciate that, if that works, the commands for ON and OFF will have to be reversed to get the same results.