User Manual

Pins
Pin Description Direction
GND Ground In
3.3V Power In
SDA Data In
SCL Clock In
Optional Features
There are several jumpers on board that can be changed to facilitate several different
functions. The first of which is the I C pull-up jumper, highlighted below. If multiple
boards are connected to the I C bus, the equivalent resistance goes down, increasing
your pull up strength. If multiple boards are connected on the same bus, make sure only
one board has the pull-up resistors connected.
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