Bathymatric mapping --urgent help--

now the good news: i managed to get a depth reading inside missionplanner.
i connected the TX and RX from serial port 4 from my pixhawk to an UART TTL → RS422 modifier. (see picture)
the NMEA 0183 cable from lowrance than is connected to this (the thicker wire with 4 smaller wires in blue,green,yellow,orange)
i set the lowrance output sentences to only “DPT” and a baudrate of 4800 (however, any baudrate should work i guess, as long as SERIAL4_BAUD is set the same.)

Great work - Can you give specifics for the pins on the serial port on Pixhawk and the setting in Mission planner. I have tried for a while and have not succeeded at this so this is great information.
Thanks

1 Like

The answer to this question can be found at Lowrance NMEA 0183 to Cube Orange - #10 by RDodds

Hello rmackay9. How did you manage or get the nmea to reefmaster? I tried that 1 year ago over nmea out and couldn’t get it to work. Please see my post. Thank you. https://discuss.ardupilot.org/t/arduboat-live-depth-to-gcs-map-or-reefmaster/93173