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WEGMATTLLC dAISy Mini AIS Receiver
Contents
1Disclaimer ..................................................................................................................................3
2Introduction ...............................................................................................................................3
3Pinout ........................................................................................................................................4
3.1 Power............................................................................................................................................5
3.2 Serial 1...........................................................................................................................................5
3.3 Serial 2...........................................................................................................................................6
3.4 I2C .................................................................................................................................................6
3.5 GPIO ..............................................................................................................................................6
3.6 Antenna connector .......................................................................................................................6
4Interfaces...................................................................................................................................7
4.1 I2C .................................................................................................................................................7
4.1.1 Read/Write Operation ..........................................................................................................7
4.1.2 Device Address......................................................................................................................7
4.1.3 Register Layout .....................................................................................................................7
4.1.4 NMEA message stream.........................................................................................................7
4.2 GPIO ..............................................................................................................................................8
4.2.1 Overview ...............................................................................................................................8
4.2.2 None......................................................................................................................................8
4.2.3 Reset .....................................................................................................................................8
4.2.4 Sleep......................................................................................................................................8
4.2.5 LNA........................................................................................................................................8
4.2.6 AIS message ..........................................................................................................................9
4.2.7 I2C data .................................................................................................................................9
5Using the dAISy Mini...................................................................................................................9
5.1 Interpreting the status LEDs .........................................................................................................9
5.2 Configuration and debug menu..................................................................................................10
6Tips for good AIS reception .......................................................................................................13
6.1 Antenna.......................................................................................................................................13
6.2 Location, location, location.........................................................................................................13
