Rev 1.4

• Add connector for Ultra Sonic Range Finder HC-SR04.
• Add 5V pin to P10 (GPS / UART4)
• Add 5V pin to P4 (RC Input)
• Add voltage divider to P4 (RC Input) pin RC_IN (RCIN) to connect 5V signals to RC_IN (RCIN)
• Add MPU-9250 interrupt singal to PRU0

Rev 1.2

• Initial commit

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