Less than 1 month –
10-30 hrs/week –
This project involves creating the circuitry for a wireless door sensor.
What this whole project is about is creating a magnetic door switch that will detect when a door is opened or closed. The big issue here will be battery life, we want it to be 2 years.
There will be four major components - a standard magnetic reed switch, an atmega / Arduino processor, a radio, and battery with voltage sensing (need to know when to change battery).
Very similar to ...