Grandma's Pill Box

If I continue to modify this circuit, I plan on adding a 7x4 array of led's to the pill box, itself, so that "Grandma" can see exactly which specific section she needs to open.  Also, I might include an array of switches that the Arduino will use to determine which day/time in the pill box has been opened.

I followed my own written build instructions without looking at the pictures, which resulted in the second circuit photo (photographed on a leaf patterned tray).  The instructions make sense, and the circuit works great. 

Although the circuit is working as I designed it to work, I would like to reduce the hardware required.  To that end, I am playing around with replacing the logic gates with a littleBits Arduino module (which is a Leonardo).  I like to trace my code with serial println statements, but I am sometimes getting serial errors.  I'm not sure why...  

The 4 to 5 minutes that I gave Grandma to take her pills and press the button is based on the littleBits timeout's longest setting.  Instead, I made my own timeout with different resistors, which will give Grandma a more realistic time limit.  If she needs to use a walker to get across the room, she'll need the extra time.