This pointer is a 5mw cheapo laser that according to any source I have found (including thus forum) only draws around 18.5mA. That seems well within a safe level for the 5v, 3.3v or any digital pin set to high. Would it be possible to simply employ a cap to buffer if in fact the pointer draws under 20mA?
So I ordered another laser from AIXIZ that has a current limiting circuit and draws 20mA at 5vdc. Is that safe to run off a digital pin?? I just don't to ruin anything and would like to not have batteries in this project.Thanks!!-e