Why lug around your PC when you can make your own External Serial Monitor! [ARPix] built this fully functional serial monitor based on an Atmega328 and a 102 x 64 LCD display.

An Arduino Uno provides the processing power and drives the serial monitor. A joystick and a Hitachi H48C accelerometer are mounted on a breadboard and wired to the Uno.

Monitor Toilet Occupancy with An Arduino Shep McAllister July 28, 2013 Shep McAllister ...

Still, it's a handy project if you need to monitor and track the air quality in your home. Hit up the link below for the Arduino source code, a build guide, and all the details of the tests.