Hi guys, something pretty weird happened to me...
I'm using a 18X project board. When i got it, no problem, i hooked up a led with a 330Ohm resistor, a "high 0" turned the LED on, "low 0" turned it off.
As i wanted to use servos, i put the darlington off the board, and replaces it by 330Ohm resistors. Servos work, no problem, but i hooked up a LED (without additional resistor since there are now at the darlington place), and as soon as i power the board, the LED is on. If i want to turn it off, if have to send a "low" command, and to turn it off a "high" command...
But when i'm using servos, "servo 1, 225" makes the servo work, and as it's a continuous rotation servo i send a"low 1" to stop it... and it works Ô_ö
I'm sure there's a rational explanation, but right now i can't figure it out...