Connecting Holybro H-RTK M8P GNSS Rover Lite to GPS2 input

[Oleg_Bourdo (Oleg)]

Cubepilot Orange+ on GPS2 has just 6 pin connection

and the the Holybro H-RTK M8P Rover lite has 6 pin and separate 2 pin

In The mission planner:
GPS_TYPE = 1
GPS_AUTO_CONFIG = 1
SERIAL3_PROTOCOL = 5
SERIAL3_BAUD = 115200

I have connected the Holybro H-RTK M8P Rover lite to the GPS2 port on Cubepilot Orange+
But Ardupilot is showing NO GPS

Need some help and clarification with this connection

[amilcarlucas]

Try this instead, :

GPS_TYPE = 1
GPS_AUTO_CONFIG = 1
SERIAL3_PROTOCOL = -1
SERIAL4_PROTOCOL = 5
SERIAL4_BAUD = 115200

[Oleg_Bourdo (Oleg)]

i have found that it is possibly not the Holybro module but:
GPS NEO-M8N BDS Compass Module

Typical Pinout and Color Coding (Common):

• VCC (Power):
  • Color: Red
  • Description: Power Supply. Typically requires 3.3V to 5V (check the module’s specifications � 3.3V is common and safer).
• GND (Ground):
  • Color: Black
  • Description: Ground. Connect to the ground of your microcontroller or power supply.
• TXD (Transmit):
  • Color: White or Yellow
  • Description: Transmit data. This is the GPS module’s output. Connect this to the RX pin of your microcontroller. This line sends the NMEA or UBX data from the GPS module.
• RXD (Receive):
  • Color: Blue or Green
  • Description: Receive data. This is the GPS module’s input. Connect this to the TX pin of your microcontroller. Used to send commands or configuration data to the GPS module (less commonly used, but important for advanced configurations).
• PPS (Pulse Per Second):
  • Color: Orange
  • Description: Pulse Per Second. Outputs a high-precision pulse every second when the GPS has a valid fix. Useful for timing applications. Not always used.
• SDA (I2C Serial Data):
  • Color: N/A
  • Description: I2C Data line. Some modules may use this for communication, especially with the compass. Check the documentation.
• SCL (I2C Serial Clock):
  • Color: N/A
  • Description: I2C Clock line. Some modules may use this for communication, especially with the compass. Check the documentation.
• IRQ (Interrupt Request):
  • Color: N/A
  • Description: Used to signal an event from the module to the host microcontroller. Not commonly used in basic GPS applications.
• DRDY (Data Ready):
  • Color: N/A
  • Description: Indicates that new data is available from the compass/magnetometer. Check the documentation.
• RST (Reset):
  • Color: N/A
  • Description: Reset the module. Typically active low. Not always connected.

[Oleg_Bourdo (Oleg)]

The problem not solved.
I have connected all but still NO GPS
i have changed the TX - TX connection with cross like TX-RX and RX-TX - but the problem the same - NO GPS.

If Anyone could provide how to solve it - then it would be great

[Yuri_Rage]

Configure it using SERIAL4, as @amilcarlucas told you.

[Oleg_Bourdo (Oleg)]

i have connected the H-RTK M8P to GPS1

and Connected the M8N to GPS2

I have connected the TX from GPS device to RX on the Cube
and RX from GPS device to TX
Then i have set the

GPS_TYPE = 1
GPS_AUTO_CONFIG = 1
SERIAL3_PROTOCOL = 5
SERIAL3_BAUD = 115200
SERIAL4_PROTOCOL = 5
SERIAL4_BAUD = 115200

and now i have the Message GPS no Fix

Maybe someone knows how to Fix it and make the GPS is possible to have the cords?

[amilcarlucas]

I already told you how to fix it.

[Oleg_Bourdo (Oleg)]

Yes, i have done it and connect and made the setting and now the Ardupilot is showing

GPS no Fix

before it was GPS NO GPS

But now GPS no Fix

[amilcarlucas]

GPS NO GPS means it had no connection to the GPS receiver at all

GPS no Fix means it can connect to the GPS, but the GPS receiver has no signal from the satellites. Are you testing this outside with a clear sky view?

[Oleg_Bourdo (Oleg)]

Problem solved.

i have connected both GPS to the Cube GPS1 and GPS2
then i went outside and in some about 2-3 minutes both GPS started work

Thanks all