My goal is to use the Aerotenna uLanding-C1 for the purpose of maintaining AGL and improving landing performance.
Pixhawk 2.1: ArduPlane V3.8.0
GCS: Mission Planner 1.3.49 build 1.1.6410.20232
Altimeter: Aerotenna uLanding-C1 (Serial)
I have the uLanding connected to Serial4 (GPS2) of the Pixhawk 2.1.
SERIAL4_PROTOCOL: 12 (uLanding Parameter value)
SERIAL4_BAUD: 115 (uLanding default Baud Rate)
The only parameter I have changed regarding the range-finder functionality is:
RNGFND_TYPE: 11 (uLanding Parameter value)
I have tried adjusting various values related to the upper and lower bounds, but none have seemed to affect readout. See below.
Upon connecting Mission Planner to the Pixhawk, SonarRange reads "0". If I move the altimeter around, 1-3 three similar windows open (??), and the SonarRange value is populated. In most cases, a value of 6.35 (cm) is displayed regardless of orientation and obstructions before the altimeter. On occasion, sporadic (erroneous) values are displayed.
I was hoping someone with a similar configuration utilizing the uLanding might give advice on the proper configuration (parameters) or known issues with my configuration.
- PH2.1 cannot sustain 115 kbaud on Serial4? When I tried lowering to 9600 baud, the value reset itself to 115 kbaud on next startup and connect cycle.
- Some parameter related to the abundance of laser analog/PWM altimeters is interfering with the value?
See below for an example of the issue (including mystery window) and a copy of my parameters.