The code has been uploaded to arduino mini, all components are connected toguether using a single breadboard and jumper cables. Which makes everything a bit bulky. 

Next steps 

Reduce size: Ideally this hardware should be all in a single board, maybe about 1'' x 1.5'' in total. Similar to what I did with my watchduino project (also powered by Arduino Pro Mini) https://hackaday.io/project/7244-watchduino2

Battery: I'd like to replace the 3V cell battery with a 3v Lipo battery and USB charguer