Comments: Light-Up Valentine Cards
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And thank you for this tuto.
I've got a question though : is there a need for a resistor between the CR1225 battery (3V) and the standard 3mm LED (2.0-2.4VDC forward drop) ?
Additional question : using a CR1225 (47mAh capacited), and with a 20mAh LED, I can expect approximately 2 hours of functioning, right ?
I know these are basic noob question, but I do not want to try it the wrong way.