starting up a old project of mine for a RC lost model alarm
the circuit triggers a beeper to go off when the main quadcopter battery get ejected, the way these work is, they have a small self contained battery and it monitors 5v coming from the quadcopters flight controller. when that 5v isn't present it uses its own battery to set off a beeper...
seems to be overkill to use a attiny85 to do this... couldn't it be done using just a transistor or 2 or a comparator etc...
the circuit triggers a beeper to go off when the main quadcopter battery get ejected, the way these work is, they have a small self contained battery and it monitors 5v coming from the quadcopters flight controller. when that 5v isn't present it uses its own battery to set off a beeper...
seems to be overkill to use a attiny85 to do this... couldn't it be done using just a transistor or 2 or a comparator etc...
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