Tiny 12V

thingiverse

This enclosure is designed to house a basic 12-volt car battery monitor with a traffic light indicator that shows the battery's condition. It holds an ATTiny85 module of the digispark type, as well as an add-on prototype board that includes some additional components. Holes are included for three LEDs and a connector for the 12-volt power supply from the battery. An instructable that describes this project is available at https://www.instructables.com/id/Tiny-12V-Monitor/.