RTK Kit with Pixhawk
Carefulmistake 2026-08-15 06:43:47 94 Views1 Replies Has anyone used the RTK kit with a Pixhawk setup? I'm having trouble getting a config to work in the Pixhawk. I've got it set up in uArt and have tried the default baud rate (115) as well as most other baud rates below it and have not received any data from the RTK unit.
The LC29HDA in the RTK kit defaults to 57600 baud, not 115200. Use the DFRobot library or transmitAT() to check the current baud with $PQTMVERNO*58 and set it to match your Pixhawk GPS port.
On the Pixhawk side, set GPS_TYPE to 5 (NMEA) and SERIALx_BAUD to the same rate. The RTK module outputs NMEA by default, but if you changed the config earlier it might be in PQTM debug mode which Pixhawk won't parse.
Also double-check TX/RX — the DFRobot 4-pin UART is VCC/GND/TX/RX, but Pixhawk GPS ports use 6-pin JST-GH with different pinouts. A straight cable won't work without checking the pin mapping.
Jason.Miao 