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By coyote20000
#117967
Connect power to the board, it says it can take up to 10v.

Connect RX on the Mega to TXD on the IMU.
Connect TX on the Mega to a resistor voltage divider, and output of voltage divider to RXD on the IMU.

Example... TX Mega --> 10K resistor(r1) --> RX IMU --> 20K Resistor(r2) --> Ground