VALENTINEGot the piezo-buzzer working annoyingly loud enough. Took me some time to hit the exact resonant frequency and warbling overtone, but now it's pretty efficient w.r.t. current output. It's all about the minimax!
Alarm/Sound
A project log for Smartwatch 10 Years Ultra-Long Battery Life
Smartwatch wearable, ultra-long life measured in years, no need to recharge.
Discussions
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