
First enable the serial port by clicking the UART icon and reboot the Raspberry Pi. The serial port is now
connected to the dAISy HAT and you should see a new device ttyAMA0.
On the Devices tab, select the line with ttyAMA0 and give it an alias (for example daisy) and select
NMEA0183 from the data dropdown, then press Apply.
On the Connections tab, select the ttyAMA0 device and click Add to Signal K, select the Baud Rate of
38400, then press AUTO. Signal K, OpenCPN and other applications on the OpenPlotter image should
now receive AIS data.
LED status indicator
dAISy HAT features two red/green LEDs to indicate its status of each AIS channel.
Green, short flash every 5 seconds
Channel is in reception mode
Channel received a valid AIS message
Channel received an invalid message
Red, permanently on or fast continuous blinking
Device is not in reception mode
No activity of the status LEDs
Verify that the HAT is properly seated.
Device in reception mode, but no valid AIS
messages received (no ¼ second green flashes)
Verify antenna connection and location.
Good AIS reception requires line-of-sight, verify
your setup from a location that is certain to have
traffic, e.g. near a harbor.
Device indicates valid AIS messages (¼ second
green flashes), but no messages received on the
Raspberry Pi.
Verify that the serial port shows up, if not verify
the hardware configuration. Verify the serial
configuration of your software. Verify the serial
communication with a program like screen.
Software receives positions, but fewer than
expected and/or with worse range than
expected.
Verify antenna connection and location. Good AIS
reception requires line-of-sight. Move the
antenna away from sources of RF noise.
After some time, dAISy indicates a device error
(fast blinking red LED)
This should not occur with the dAISy HAT. Power
cycle the Raspberry Pi to resolve the issue.
If a problem persists or frequently reoccurs, don’t hesitate to contact us at daisy@wegmatt.com.
Contact
http://www.wegmatt.com
Wegmatt LLC
6356 138th Ave NE #212
Redmond, WA
United States of America
Designed and assembled in the USA