On/Off Switch Extender

A project log for ATtiny85 based Lithium-Ion Battery Power Bank

This circuit allows the use of a 3.7V Lithium-Ion battery cell, such as the popular 18650 cells, to power or charge 5.0V devices

Jeff WahausJeff Wahaus 11/05/2018 at 23:550 Comments

Extended the on/off switch with a 3D printed switch extender.