The board couldn't be more simple, but is it too simple ?
It's an sender for IR beam barrier. It would have cost the same to do it the analog way so I desided to use a ATtiny15 for it :)
The design worked fine for a few days but suddenly stopped. I checked what's wrong and found the tiny burning hot :(
Any advice ? Is it the design or did I just have an monday piece :)
The tiny is powered by an 4.5V battery.