I am building a diy controller mostly for learning mavlink using a Teensy 3.5 MCU and APM Planner. I have a lot implemented already: can send messages to APM planner to display GPS, Attitude Data from an IMU, Pressure sensor for Altitude, battery status etc. I can even send Waypoints from APM planner to the Teensy (essentially Arduino compatible). But have a couple of major issues that I thought maybe somebody can help me to resolve:
1. I want to use a joystick to control the rover I have this all attached to and am assuming that Mavlink message manual_control is used to do this. From APM Planner it is telling me that it is sending a manual control message. However, and here is the kicker, parse char function does seem to recognize the manual control message. I am using mavlink 1 with this so don't know if its a 1 vs 2 issue? Any help would be appreciated. I am overriding RC by sending 65536 to all channels in set up.
2. the second issue is that for some reason I can not set params from the GCS to the Teensy. Again, parse_char does not seem to recognize the command for me to test as a message id.
So would really appreciate the help.