As my serial cable link was as “bad” as the SIK air links 433Mhz ,915Mhz and 2.4Ghz i started to suspect my serial port Telem.1 .
I switched from 1 to Telem 2 and most of my airspeed problems where gone , i can’t really say why …port settings are the same apart from the serial pass settings.
After this “huray” moment i ran into a different problem .Regarding the luna’s Below the settings that worked on USB-> Pixhawk previous.
On Telem.2 this did not work , RNG3 &7 where mixing up all over…an where only one at a time could be seen on Mission-planner and an alarm "sensor x not found sounded on and on ( even sensor that i saw moving on screen)
So next thing i did was giving the sensor with the well know Arduino script again new addresses.
But this time clockwise 16->18>20 ( more logical ).
Still the same problems existed .
Last option was for me to try to change the order in Mission-planner so RNG1->16 RNG2-18 and RNG3->20 and point these in the right direction…
This is the result !,3x Luna’s on 100Hz and on 915Mhz , 57600 bps , airspeed 64. ( so some room left to improve ).
However i’m more leaning towards reducing some of the Hz of the Luna’s.
@ppoirier , @DonLakeFlyer @rmackay9
there is still one issue.
The directions (mounting place ) in Mission-planner and Qground-control aren’t the same !. This can have huge consequences on where the drone wants to avoid the collision ?!.
i’m not sure why , but my Telem 1 & 2 ports act different . I,m not an expert on the Pixhawk board internals and could not find on the internet why they act different . The only this i see is This,
After connecting the TF-Luna’s and the switch the sik 915Mhz to Telem 2 the lunas work fine.
Since i now have to use Telem 1 for minimosd , i noticed that the slow speed is still there on Telem 1.
This means telem 1 cannot be used , Telem 1 updates values/data every 3 or 5 minutes.
The strange thing is that changing settings ( the SR ones ) does not make a difference.
Question ,
1-what is the exact difference between Ports Telem 1 & 2 ?.
I have seen that Telem 1 does only 400 bps on 4 Lidars.
Telem 2 does 2000 bps .
To end this discussion ,
what worked for me at the end.
As The developers don’t seem to care that much , I got my drone working by doing this.
0-To get my Mavlink 915/433 sik radio working i moved it from Telem 1 to Telem 2.
1-To get fast working telemetry on goggles and VTX i moved my OSD telemetry from Telem-1 to Serial 4. (Telem-1 cannot be used somehow )
2-To give devices time to boot i changed BRD_BOOT_DELAY,0 to 20ms
3-To reduce the (4) Luna’s data load i have two new compiled arducopter firmwares with the lunas on 10Hz and on 25Hz /Luna.(to decide which one to run later )… ! the ardupilot driver resets luna’s every boot ! .
4-Also took out a failure in the TF-Mini I2C -driver @ the same time.
this line-----------const uint8_t CMD_SYSTEM_RESET[] = { 0x5A, 0x04, 0x04, 0x62 }; is wrong(=Trigger detection)
Should be — const uint8_t CMD_SYSTEM_RESET[] = { 0x5A, 0x04, 0x02, 0x60 }; (=system reset )
