This is the source code for the USB Tester OLED Backpack
Switch branches/tags
Nothing to show
Clone or download
Latest commit 2c19fbe Mar 20, 2017
Failed to load latest commit information.
USB_Tester_v1 Fixed screen size in library Jul 1, 2014
USB_Tester_v2 optimize mAh/mWh Mar 20, 2017
.gitmodules Added INA219 lib Nov 12, 2016 Update TimerOne link in readme Nov 12, 2016 Formatting Nov 9, 2014
version.dat See changelog Nov 9, 2014


This is the source code for the USB Tester OLED Backpack

Which can be found at:

To compile this code you will need the following libraries:

Old Version

Adafruit GFX

Adafruit SSD1306


Needs [UG8LIB] (

Both Versions



Adafruit INA219

Download ZIP in each version folder for a working set with libraries and configuration of hardware SPI and display size

Use the new firmware version with the new Java app

There may be a bug that shifts the display. We are working on a solution - Testing a new library for the display.

How to update firmware:

License: All source code and designs are released under

Creative Commons NonCommercial-ShareAlike



Please contact me for commercial opportunities.