Relay Low Battery LED Powerboost

118

02:06:22

Another possible circuit connecting the low battery pin from the powerboost to two LEDS. This is probably a safer design as I'm not sure if the pin pulls to ground when it flips to 0v.

published 9 years ago

lenzrulz

9 years ago

Beware of the -100V spike when the voltage in the relay coil collapses.

retrontology

9 years ago

Thank you for pointing that out. I attached a flyback diode to the coil so it only drops to -860mv when it collapses now.

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