Process & Outcome

I initially began by thinking I would use an RGB LED, a button, a hall effect sensor & IFTTT for my needs. Using a HE sensor, I would monitor the door, and based on the signal coming, I would check whether the door was open or not. Based on whether the door had been opened since the last reset - the RGB LED would turn either red or green whenever the button was pressed, say as my brother walked into his bedroom after  getting home - and IFTTT would send him an email every time someone opened his door. 

Unfortunately, as I worked through the process, I ran into issues regarding 1. the RGB LED - I was unable to power it properly, and 2. the button, which I was unable to make play properly with the Hall Effect Sensor. As such, I ended up getting switching the RGB LED with 1 green and 1 red LED instead, and removed the button altogether, letting one of the 2 LEDs remain turned on in perpetuity. 

My next goals would be to implement it on the door itself, and build in the button.