@Alex-Kushleyev Thanks Alex, We will test it out. In the meantime my team will be sending the first FPV 4n1 ESC back, so you can investigate onsite.
Thank you,
RDJ
@Alex-Kushleyev Thanks Alex, We will test it out. In the meantime my team will be sending the first FPV 4n1 ESC back, so you can investigate onsite.
Thank you,
RDJ
@Alex-Kushleyev I agree, what do you think the next troubleshooting step is for this issue?
From the GCS, executed "take-off" command in "Position Mode" with props off. Motors smoothly increase. I "hand-flew" it up to 1m and UAV was adjusting for small movements correctly.
Executed "Land" and "hand-flew" it to the deck, landing detected and disarmed.
Throttle input is being "ignored" regardless of RC Channel input, same response (slow ramp up) when armed in any flight mode (Manual/Stab/Pos etc..) and throttle is increased, even when RC Channel is changed (1,2,3,4).
Motors respond correctly with pitch, yaw, and roll inputs.
PX4 FPV_RevBv4 params are uploaded, switched to 4S and put min/max RPM to 3000/40000.
@Alex-Kushleyev No actionable response from throttle.
We kept the custom ESC config for the 2203.5, and uploaded px4 FPV_RevB_v4.
Motors are more responsive in all channels, Throttle channel still conducts a "ramp up", but more aggresively when RC Tx input is applied.
Also, sinusodial value is 0 in FBV_RevB, I will change this to 1.
What effect does the aO,a1, and a2 (pwm_vs_rpm curve) have on overall throttle response for FPV 4n1 ESC? in the FPV_RevB the a0 value is -161.0826?
@Alex-Kushleyev I am going to upload FPV_REVB. unless you recommend another.
RDJ
@Alex-Kushleyev Good morning,
Started trouble shooting this issue again with no change.
Under 4s battery power, all motors respond well to motor test, using slider in QGC, min to full throttle in Actuator tab.
Still no response other than "slow ramp up" when throttle is increased on RC Tx.
RDJ
Thanks Alex, SYS_VEHICLE_RESP parameter is -0.40. With small incremental adjustments there was no change in UAV behavior. Changed the value to 0.40 with no change in behavior.
RDJ
I swapped the RC Channels for testing.
Throttle and yaw were swapped RC3 and RC4.
Same results with throttle not responding to inputs on RC4, instead of RC3.
I do appreciate your willingness to help. I have selected ModalAI products for our organization based off of current and future capabilities. I have even selected a motor that I know you are using to ensure stable testing and flight characteristics.
If the ModalAI DEV team cannot troubleshoot issues on known UAV setups that you have at your shop, then I need to have a conversation with a different department.
All web advertising, Documentation, and Videos produced by ModalAI have shown these capabilities working flawlessly and it feels we have been oversold the true capabilities of the system today.
At this point these products cant even take flight.
@Alex-Kushleyev Thank you. We understand that the desired inputs and actual input are not the same.
We have no filters. All ModalAI Hardware and Software are being used. ModalAI PX4 QGC Skin is used. Spektrum Rx/Tx DSMX as suggested by ModalAI is used.
We have purchased 2 ModalAI FPV 4n1 ESC and multiple VOXL and VOXL2 Dev kits to keep all hardware in the same ecosystem for easy integration and R&D for our product.
There is a disconnect between the FC/ESC comms on throttle Ch 3.
@Alex-Kushleyev [mavlink] Event dropped (78, 65529)
@Alex-Kushleyev How do I upload a log? The forum say I do not have permission.