I've been trying to use a GPS reciever that uses an MTK3339 chipset (instead of the more popular UBX chipset).
I'm having a whole lot of issues with it working correctly even though the PX4 documentation says it is supported. Looking through the code, it seems like the MTK driver is not nearly as developed as the UBX driver.
Has anyone come across this before? I can try to add to the driver code but if anyone has done any work on it previously and can share their findings I'd be eternally greatful.