Aviation Logger - SIM/Bluetooth/GPS/Accelerometer/Magnetometer/Gyroscope
- D0 RXD
- D1 TXD
- D13/ICSP_SCK SD_SCK
- D12/ICSP_MISO SD_OUT
- D11/ICSP_MOSI SD_IN
- D4 SD_CS - Chip Select line
- D0 RX
- D1 TX
- A4 SDA
- A5 SCL
- D2 Interupt pin
- D4 Reset pin
- Slave TWI address: 0x28 (default)