Posts made by TomP

@Eric-Katzfey said in ArduPilot on Voxl2:

@TomP Wonderful! So glad to hear. And I would really love to hear how the flight testing goes. We've never tried a VOXL 2 (or VOXL 2 mini) on a fixed wing (with ArduPilot) so be careful and triple check to make sure everything looks setup correctly before launching.

It is an honor for me to report. We will be careful. Of course, a crash can also occur independently of the VOXL2. This is a new drone that we are building.

What might be relevant for you is that we have found a gimbal that will fit one of your cameras with a bit of hardware hacking. The gimbal can also be controlled via serial interface using Ardupilot. We have already successfully tested this with the VOXL2-Mini.

@Eric-Katzfey said in ArduPilot on Voxl2:

voxl-2-io

It works! Many thanks for the great support!
The firmware upgrade was the solution.

@Eric-Katzfey said in ArduPilot on Voxl2:

@TomP A new voxl-ardupilot package with debug information added. But we may not need that. Try voxl-2-io detect and then if that is successful then try voxl-2-io scan

voxl2-mini:~$ voxl-2-io detect
enabling bridge
bridge enabled
[INFO] Detected VOXL2 IO on default port (2).

ESC detected: ModalAi I/O Expander (M0065)

disabling bridge
bridge disabled
voxl2-mini:~$ voxl-2-io scan
enabling bridge
bridge enabled
Successfully pinged VOXL2 IO on default port (2).
INFO: VOXL2 IO Information:

    Board      : version 35 : ModalAi I/O Expander (M0065)
    UID        : 0x8108322152518882066BFF54
    Firmware   : version 1, hash 6b5ec459
    Bootloader : version 0, hash 5ba5857f

disabling bridge
bridge disabled

@Eric-Katzfey said in ArduPilot on Voxl2:

Yep, that all looks fine. Shoot. I may need to send you a new package with extra debug information to help debug this since by default there really isn't much we can see.

What do you mean by that?
"a new package with extra debug information"

@Eric-Katzfey Here is the pin configuration (J19 on VOXL2-Mini to J4 on IO Board):

VOXL2-Mini-----IO Board
9-----------------1
8-----------------3
7-----------------2
6-----------------4

(I mistyped the table at the beginning. I have corrected the typo.)

@Eric-Katzfey I can rule out connection problems. I checked the contacts on the VOXL2-Mini and the IO board with a continuity tester. Everything is well connected.

I know that with ardupilot you can at least control the servos without arming. Is this perhaps implemented differently here? Then I would have to calibrate the sensors etc. to test this.

@Eric-Katzfey Here are my settings (no PWM output):

SERVO1_FUNCTION,4
SERVO1_MAX,1900
SERVO1_MIN,1100
SERVO1_REVERSED,0
SERVO1_TRIM,1500
SERVO2_FUNCTION,19
SERVO2_MAX,1900
SERVO2_MIN,1100
SERVO2_REVERSED,0
SERVO2_TRIM,1500
SERVO3_FUNCTION,70
SERVO3_MAX,1900
SERVO3_MIN,1100
SERVO3_REVERSED,0
SERVO3_TRIM,1100
SERVO4_FUNCTION,21
SERVO4_MAX,1900
SERVO4_MIN,1100
SERVO4_REVERSED,0
SERVO4_TRIM,1500
SERVO5_FUNCTION,0
SERVO5_MAX,1900
SERVO5_MIN,1100
SERVO5_REVERSED,0
SERVO5_TRIM,1500
SERVO6_FUNCTION,0
SERVO6_MAX,1900
SERVO6_MIN,1100
SERVO6_REVERSED,0
SERVO6_TRIM,1500
SERVO7_FUNCTION,0
SERVO7_MAX,1900
SERVO7_MIN,1100
SERVO7_REVERSED,0
SERVO7_TRIM,1500
SERVO8_FUNCTION,0
SERVO8_MAX,1900
SERVO8_MIN,1100
SERVO8_REVERSED,0
SERVO8_TRIM,1500

@Eric-Katzfey The battery monitor works. Thank you very much! I'm sure the PWM will also work and then it's off to the test flight.

Hi,

There is another problem. The PWM board does not output PWMs. I have also measured this with an oscilloscope. According to SERVO_OUTPUT_RAW, however, the FC should output PWM values.

Do I have to set another parameter in Arduplane so that the VOXL 2 I/O Expander Board is controlled correctly?

I use the VOXL2-Mini J19 connector: GND, pin 7, pin 8 and VREG_3P3V_RC for the power supply.

Here is my setup:

@Eric-Katzfey No, this is not detected. The configuration does not seem to be correct either. The parameter list mentions "Analog Voltage and Current" and corresponding pins.
Here is a screenshot:

Hi,

How can I configure the battery monitor for ArduPlane on the VOXL2-Mini?
Which value do I have to enter for BATT_MONITOR and which values for BATT_I2C_ADDR and BAT_I2C_BUS?

The "VOXL 2 Mini Power" transmits the current and voltage measurement data via I2C.

Best regards,
Tom

Re: ArduPilot on Voxl2
Hi,

Which pins on the J19 connector of the VOXL2-Mini are mapped to ArduPilot's SERIALx ports?

For the VOXL2-Mini J19 connector, one of the UART connections (pins 7 and is reserved for PWM signals. With pins 2 and 3 dedicated to GPS, which ArduPilot SERIALx port does that correspond to? Additionally, which SERIALx port is mapped to pins 10 and 11?

Best regards,
Tom

@Eric-Katzfey We use GPS, compass and the IO board for a PWM-controlled ESC and two servos. We also need two more PWM channels for gimbal control. That's it.

We do not use an RC. The control is purely via MAVLink. Joystick inputs are made via the MAVLink command MANUAL_CONTROL. Data is transmitted via the mobile network.

Hello everyone,

We are using the Mini VOXL with the following setup:

Camera:

IMX412 Sensor COAX BD M0161
Connector:
M0155
Here are some pictures of the setup:

I need clarification about the connection. Do we need to align the number "59" written on the Mini VOXL with the connector for proper connection? Should they overlap, as shown in the image below?

Any guidance on how to connect this correctly would be greatly appreciated.

Thanks in advance!

@Andrew-Tridgell @Eric-Katzfey I wanted to ask again about the current roadmap regarding Arduplane and the IO board for PWM.

Best regards
Tom

Perhaps it has already been considered to operate the VOXL2 with digital FPV cameras such as those from Walksnail. Maybe cameras with the same connectors also use the same standardized data formats.

Hi,
I'm curious if it's possible to connect the Image Sensor Micro-coax Adapter for VOXL 2 (MDK-M0155-1) to the Walksnail Camera System. The micro-coaxial cable shown in the picture of the VOXL 2 image sensor adapter looks very similar to the cable used in the Walksnail system. Does anyone know if these are actually the same type of cable?

@Eric-Katzfey Is there an update on the timeline yet?

Best regards
Tom

@Alex-Kushleyev That sounds excellent. I would like to use your stabilisation as soon as it is available.

Hello everyone,

is it possible to digitally stabilise the video image in real time with the VOXL2?

I am aware that image information is lost at the edges. One idea is to stabilise a 4k video image and then only transmit a stabilised HD video section from the centre.

Here you can see what I mean:
https://github.com/AdamSpannbauer/python_video_stab

I just wanted to show with the link what I mean. You would probably need other software that can also use hardware acceleration on the VOXL2.

Best regards
Tom