<![CDATA[PWM Pinout 5 only has signal with camera trigger.]]>I am using a Joystick controller and last week on QGC I was able to change the parameter COM_RC_IN_MODE to Joystick with Virtual RC and map an RC channel to RC_MAP_AUX1.

This allowed me move the servo into three different positions by setting PWM_MAIN_MAX5 and PWM_MAIN_MIN5 to two different values. The servo signal wire was plugged into the pin 5 on the pwm breakout board (https://www.modalai.com/products/flight-core-pwm-output-cable-and-break-out-board).

I updated the firmware and flashed the system image between then and now. However, I ended up reverting to the versions that were previously installed because the servo was no longer getting the signal from the breakout. It seems that the 5 pinout on the pwm breakout board is only receiving signal when I enable TRIG_MODE.

I did the same setup with a Pixhawk and the servo signal rail did power on and let me move the servo but the Voxl-Flight board does not. Is there anything I can check or any information on how to do this? I have already looked through the steps for https://docs.modalai.com/voxl-m500-gimbal-user-guide/#auxillary-outputs.

Thank you

]]>https://forum.modalai.com/topic/1096/pwm-pinout-5-only-has-signal-with-camera-triggerRSS for NodeTue, 11 Aug 2026 02:48:20 GMTThu, 07 Jul 2022 21:45:32 GMT60<![CDATA[Reply to PWM Pinout 5 only has signal with camera trigger. on Sun, 10 Jul 2022 20:23:09 GMT]]>Hi @Caleb-Rievley I've only seen channels 5/6 work. I myself am not versed much in the use of mixers etc, but I'm sure it's possible.

]]>https://forum.modalai.com/post/5118https://forum.modalai.com/post/5118Sun, 10 Jul 2022 20:23:09 GMT<![CDATA[Reply to PWM Pinout 5 only has signal with camera trigger. on Fri, 08 Jul 2022 20:52:05 GMT]]>@modaltb
I am now working with the firmware that you stated. We are able to passthrough the PWM 5 and 6 pins. Is there anyway to use pins 7 and 8 aswell?

]]>https://forum.modalai.com/post/5099https://forum.modalai.com/post/5099Fri, 08 Jul 2022 20:52:05 GMT<![CDATA[Reply to PWM Pinout 5 only has signal with camera trigger. on Fri, 08 Jul 2022 17:26:50 GMT]]>@Caleb-Rievley That is not the right one to pull from. See link posted above. You should get the firmware for Modalai products from modalai website.

I have made the exact same mistake in the past

]]>https://forum.modalai.com/post/5095https://forum.modalai.com/post/5095Fri, 08 Jul 2022 17:26:50 GMT<![CDATA[Reply to PWM Pinout 5 only has signal with camera trigger. on Fri, 08 Jul 2022 17:15:09 GMT]]>@wilkinsaf
I have been uploading from

https://github.com/PX4/PX4-Autopilot/releases/download/v1.13.0/modalai_fc-v1_default.px4

]]>https://forum.modalai.com/post/5093https://forum.modalai.com/post/5093Fri, 08 Jul 2022 17:15:09 GMT<![CDATA[Reply to PWM Pinout 5 only has signal with camera trigger. on Fri, 08 Jul 2022 14:56:03 GMT]]>@Caleb-Rievley are you loading firmware 1.12 and 1.13 on the VOXL Flight?

ModalAI comes out with their own versions of PX4. Let me dig up that URL:

Link Preview Image
Flight Core Firmware

ModalAI technical documentation for VOXL and VOXL 2 Companion Computers for PX4 and ArduPilot Obstacle Avoidance and GPS-denied navigation, assembled in the USA

favicon

ModalAI Technical Docs (docs.modalai.com)

]]>https://forum.modalai.com/post/5088https://forum.modalai.com/post/5088Fri, 08 Jul 2022 14:56:03 GMT<![CDATA[Reply to PWM Pinout 5 only has signal with camera trigger. on Fri, 08 Jul 2022 00:34:19 GMT]]>@modaltb
With our joystick (https://www.uxvtechnologies.com/ground-control-stations/micronav/) , Radio Setup (Calibrate) works on Firmware 1.12.3. However no signal from the PWM board from pin 5-8.

We were able to get signal to the servo rail on the Firmware 1.13 (using sys_ctrl_alloc and the Actuators tab). We are unable to assign joystick controls to the servo. We tried to assign the servo as a gimbal, and use a button on the joystick as gimbal left/right. However the servo does not move.

Additionally, Radio Setup calibration returns "Detected 0 radio channels. 5 Channels needed". This was not an issue on the previous firmware.

]]>https://forum.modalai.com/post/5085https://forum.modalai.com/post/5085Fri, 08 Jul 2022 00:34:19 GMT<![CDATA[Reply to PWM Pinout 5 only has signal with camera trigger. on Fri, 08 Jul 2022 00:31:44 GMT]]>Can you please provide the versions you tested against?

We ship with a 1.11.3-0.2.3 version currently.

]]>https://forum.modalai.com/post/5084https://forum.modalai.com/post/5084Fri, 08 Jul 2022 00:31:44 GMT<![CDATA[Reply to PWM Pinout 5 only has signal with camera trigger. on Fri, 08 Jul 2022 00:20:50 GMT]]>Hi @Caleb-Rievley let me look into this and I'll get back to you shortly

]]>https://forum.modalai.com/post/5083https://forum.modalai.com/post/5083Fri, 08 Jul 2022 00:20:50 GMT