@kitkatSG
Good morning, We can prepare a px4 parameter file for you that will reset the tune. First could you send us a px4 parameter file from your drone? You can send it directly to my email (jeremy.schmidt@modalai.com)
I'll take a look to make sure I send you everything you'll need.
Thanks
@alfa-budiman Good morning, please try reversing all six pwm connections coming from the escs to the breakout board.
Your photo shows them plugged in with incorrect pinout.
This will definitely cause all of the problems you're describing. Thanks and good luck.
@alfa-budiman And I would also suggest going back into QGC and configuring the PWM related params back to their defaults. Once the polarity of the PWM's are correct, you should be able to calibrate successfully.
@rohitpillai Good morning,
@Vinny filled me in on your issue and I wanted to check in with you on the status. You mentioned coming by the office and so I also wanted to discuss that option with you. Ease let me know if you're still interested in doing that.
Thanks!
@kitkatSG
Good morning, We can prepare a px4 parameter file for you that will reset the tune. First could you send us a px4 parameter file from your drone? You can send it directly to my email (jeremy.schmidt@modalai.com)
I'll take a look to make sure I send you everything you'll need.
Thanks
Good morning,
As long as you complete our online form then we have no problem with you dropping it off to us since you're local.
@alfa-budiman And I would also suggest going back into QGC and configuring the PWM related params back to their defaults. Once the polarity of the PWM's are correct, you should be able to calibrate successfully.
@alfa-budiman Good morning, please try reversing all six pwm connections coming from the escs to the breakout board.
Your photo shows them plugged in with incorrect pinout.
This will definitely cause all of the problems you're describing. Thanks and good luck.
Is it possible? Yes, but we highly discourage modifying our Sentinel platform in this way as we have not built it for these purposes. May I ask how much additional payload mass you're wanting to add?
@Slade-Villena The Voxl2 flight deck is the only payload that we've configured the Sentinel drone for and tested for. We don't recommend a specific additional payload type or weight because we haven't tested for it but of course the customer is always welcome to modify their drone as they want. With that said, the maximum additional weight that the Sentinel should be able to lift in it's default configuration is around 1.3 kg.
We ship the Sentinel configured to fly outdoors using GPS positioning so that may be the reason for VIO not working for you. All you should have to do is load our EKF2 indoor/vio params. I'll drop a link to where you can find all relevant param files and helper files such as the ekf2_indoor_vio.params that you need.
https://gitlab.com/voxl-public/flight-core-px4/px4-parameters/-/tree/master
Please let us know if this helps
Sorry so hear that you're still having problems. The built-in BEC shouldn't be required for basic use case. Unless you're trying to power some other on-board electronics/avionics with the BEC.
All you should need is the "power in" to all 4 esc's from a PDB and then signal and ground from esc's to flight core J7, via the breakout board.
Modalai's breakout board was designed for PWM signals only and works well in that regard. Also check to make sure that DSHOT_CONFIG
is set to "disable"
Here's some notes from our board designer to clarify.
The primary design intent was to be used with a distribution board for power
It is actually unsafe for these types of pin headers to have exposed voltages on them
We wanted to prevent some customers from accidentally installing two BEC generators on these blocks which occur all the time in other hobbyist forums/kits and customers end up damaging their BEC modules.
We apologize we did not make it clearer this is just a breakout board and not a BEC distribution block.
Our PWM breakout board does not have the positive rail connected.