Home › Evil Mad Scientist Forums › Larson Scanner and Menorah › Larson Scanner with an external DC PSU hooked up to a motion detector? › Re: Larson Scanner with an external DC PSU hooked up to a motion detector?
The Larson Scanner is designed to run off of 3 V DC, if you use the standard red LEDs. You can swap out and use larger resistors (say, 100 – 150 ohm), if you’d like to run it off of 5 V DC. As far as current goes, it’s under 50 mA, max.