This is the source code for the USB Tester OLED Backpack
Which can be found at: https://www.tindie.com/shops/FriedCircuits/
To compile this code you will need the following libraries from Adafruit
Adafruit FX
Adafruit INA219
Adafruit SSD1306
The recent version also needs the TimerOne library https://code.google.com/p/arduino-timerone/
How to update firmware: http://friedcircuits.us/docs/oled-backpack-how-to-update-firmware/
They can all be found here: https://github.com/adafruit/
This also works with a desktop java appilication for graphing and data logging in real time. https://github.com/FriedCircuits/FC-USB-Tester-Data-Logger-App
License: All source code and designs are released under
Creative Commons NonCommercial-ShareAlike
CC BY-NC-SA
Please contact me for commercial opportunities.