8 "AA" Battery holder Projects

Sun Logger

Sun Logger

A data logger is a device that is left to run for long periods of time, making regular measurements of external sensors. We’ll be using the Arduino microcontroller and a...

Posted by Steve Hobley

Categories: Computers & Mobile, Arduino | No Comments


Alarm Bag

Alarm Bag

This project uses simple electronics to create an alarm circuit for a shoulder bag. The key components are two 1/8" headphone jacks with "normally closed" switches, which detect whether a...

Posted by Steve Hobley

Categories: Electronics | No Comments