[solved] NMEA output to Clipper Easylog

[tobias.e]

Good evening everybody, 


I would like do display my SOG on a NASA Clipper easylog ( NMEA display). 

My Setup:

Raspberry Pi 4b
USB Reciever
USB RS422/485 Adapter


I used the Documentation to connect the USB GPS to opencpn via SignalK, and i see my position in opencpn.

The manual for the esylog says, it expects RMC. So i set up OpenCPN to output RMC to the serial adapter, which looks ok:

 21:24:03 (Serial:/dev/ttyUSB0) $ECRMC,202403,A,4847.784,N,01010.736,E,0.182,0.000,210121,3.360,E,A*07

But the Dispay does not show a SOG. 

Here are my settings:

[tobias.e]

It works! I just had to swap the data wires.

The easylog manual said, connect blue to ve+ and brown to ve-.

My RS422 has connectors labeled TXD+ and TXD- with blue on TXD- and brown on TXD+, everything works fine

[Sea-and-Sea]

Hey, i want to do something similar, would you mind sharing links to the hardware of both USB Receiver & USB RS422/485 Adapter please

Thanks
Colin

[tobias.e]

Hey, i want to do something similar, would you mind sharing links to the hardware of both USB Receiver & USB RS422/485 Adapter please

Thanks
Colin

Hi Collin,

I used a  G-7020 VK-172 USB GLONASS GPS EMPFÄNGER USB I got off eBay 

And a DSD TECH SH-U08A USB zum Adapter RS422 RS485 mit dem Chip CH340E  I ordered from Amazon.

Best regards
Tobias