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SainSmart UNO R3 Manual page 17

Starter kit
Hide thumbs Also See for UNO R3:

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Example 4:
we will have 4 cables to connect. We have GND, VCC, SDA(A4), SCL(A5) on
the UNO R3. See the following figure:
We also have the same four buckled ports on the back of LCD shield. See the
following figure:

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