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 flashlight is literally one of the simplest electronic devices there is
You might be surprised at everything going on inside a modern flashlight. I’ll grant that it’s probably easier to find room for extra seals around the port than in a smartwatch though.
cmnybo@discuss.tchncs.de 3 weeks ago
vaionko@sopuli.xyz 3 weeks ago
Then again my flashlight has a microcontroller with open source firmware on it
roofuskit@lemmy.world 3 weeks ago
Still not nearly as complex or compact as a smart watch. A little microcontroller versus an arm processor.