UM7 with external GPS

I am trying to connect external GPS sensor to UM7.

I connect TX2 from IO Expansion Header to PPS from GPS sensor,
RX2 from IO Expansion Header toTX from GPS sensor
I set the same baud rate transmit and receive in UM7 and GPS sensor (115200/115200).
Messages from GPS sensors have the following form:


But the fact is that the sensor does not accept data from the GPS and NMEA Health Packet - $ PHRH in the field responsible for the GPS all the time there is 1.
What tell about it?


We noticed you also posted your question on the CH Robotics forum. CH Robotics is the manufacturer of that board, so they will probably be able to give you a better answer. Let us know if you don’t get a response.