3.0 V = (0.04A - 0.017 A)(R)3.0 V = (0.023A)(R)131 Ohms = R
if it would be safe to assume that the batteries are connected in series, and not in parallel.
am I even correct in figuring that two AAA 1.5V general purpose batteries are appropriate for this setup?
if all 7 LEDs are lit at 17mA your load current will be at least 0.25 amps (inclusive of the lillypad)
I suppose I don't really understand the difference between the digital I/O and the analog pins.
I could attach two of the LEDs to one pin
And what's to stop me from attaching two LEDs to each of three of the pins and one LED to a fourth?
- helpful input -