A switch mode LED driver can be made very tiny with as few as 4 components. Battery protection and a single cell battery charger can also be very simple.
A switch mode LED driver can be made very tiny with as few as 4 components. Battery protection and a single cell battery charger can also be very simple.
vaionko@sopuli.xyz 3 weeks ago
Then again my flashlight has a microcontroller with open source firmware on it