I was wondering if the Digital Pins output 5v on the Shield Shield. From the look and sound of it there is a level shifter built into for Arduino compatiblity. I was trying to connect a cheap 20x4 LCD with I2C backpack and ran into some issues. I ran some I2C address scanning code and it just go…

Shield Shield Digital Out Voltage (with respect to I2C)

BulldogLowell February 6, 2015, 3:14am 2

Never used the Shield Shield ,but check this out:

and if you get it working properly and continuously, please let us know here:

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