Initially the plan was to have this board released with the rest of the series, but we needed to rework some important aspects and essentially started from scratch. I'm now requesting feedback, please find attached an EARLY draft, its by no means a complete board, but illustrates nicely the direction we're heading towards.
It is intended as multi rotor adapter board and for hacking setups where other specially PX4 carrier boards might not provide interfaces that are wanted. It does only mechanical / electrical interface conversion and has no active components, except for a 4.7V supply, on it.
FEEDBACK:
Please provide info about:
- What interfaces are missing
- What mechanical mounts are missing (e.g. DJI frames, please provide measurements and hole diameters)
- In which setup you could imagine using this board
- Other comments
Thanks!
-Lorenz
MECHANICAL:
- Fits 50 x 50 mm boards / 45 x 45 mm mounts (e.g. Mikrokopter)
- Fits 30 x 30 mm mounts (all PX4 boards do)
- Fits ArduPilotMega 2.x mounts
- Offers 3DR u-blox module mount (not yet on draft)
INTERFACES:
- 4-6x PWM (servo) out on standard 0.1" headers
- 4x FTDI pinouts for all four UARTs
- 2x I2C out
- PPM sum signal / CPPM in
POWER:
- One RECOM regulator will provide 4.7V for FMU and other electronics
KIT:
- All connectors are through-hole, the board will be available as kit
- Board pricing will be very low-ended
This looks great and would fit my immediate needs.
Current Use: DJI F330/F450 but they don't provide any mounting holes and it is necessary to drill your own.
Power Options: This might go beyond what will fit into a PCB of this size but supporting 9V for FPV, 12V for LEDs, Optical switch for camera triggering. Or perhaps you should just be able to add an extension pcb such as this one<http://www.flyinghigh.ch/index.php/en/home.html?page=shop.product_det...> .
SPI: Is this available somewhere? I see it is mentioned on the FMU specs.
Other: While this most likely goes beyond plans for a board like this it got me thinking about support for Gumstix COMs.
On Saturday, September 22, 2012 3:39:26 PM UTC+2, Lorenz Meier wrote:
> Hi all,
> Initially the plan was to have this board released with the rest of the > series, but we needed to rework some important aspects and essentially > started from scratch. I'm now requesting feedback, please find attached an > EARLY draft, its by no means a complete board, but illustrates nicely the > direction we're heading towards.
> It is intended as multi rotor adapter board and for hacking setups where > other specially PX4 carrier boards might not provide interfaces that are > wanted. It does only mechanical / electrical interface conversion and has > no active components, except for a 4.7V supply, on it.
> FEEDBACK:
> Please provide info about:
> - What interfaces are missing > - What mechanical mounts are missing (e.g. DJI frames, please provide > measurements and hole diameters) > - In which setup you could imagine using this board > - Other comments
> Thanks!
> -Lorenz
> MECHANICAL:
> - Fits 50 x 50 mm boards / 45 x 45 mm mounts (e.g. Mikrokopter) > - Fits 30 x 30 mm mounts (all PX4 boards do) > - Fits ArduPilotMega 2.x mounts > - Offers 3DR u-blox module mount (not yet on draft)
> INTERFACES:
> - 4-6x PWM (servo) out on standard 0.1" headers > - 4x FTDI pinouts for all four UARTs > - 2x I2C out > - PPM sum signal / CPPM in
> POWER:
> - One RECOM regulator will provide 4.7V for FMU and other electronics
> KIT:
> - All connectors are through-hole, the board will be available as kit > - Board pricing will be very low-ended
One of the major reasons for the expansion bus is to make it easy to design your own add-ons. IOLite will help for one-offs where designing a board doesn't make sense, but for a COM interface you'll want to design your own.
I've given Lorenz mounting details for the DJI F450 - do you happen to know whether the F330 uses the same (27x34mm) slots, or is it laid out differently?
It would also help to know the clearance from the mounting holes to the arms, as that dimension is already quite tight on the F450.
> This looks great and would fit my immediate needs.
> Current Use:
> DJI F330/F450 but they don't provide any mounting holes and it is necessary to drill your own.
> Power Options:
> This might go beyond what will fit into a PCB of this size but supporting 9V for FPV, 12V for LEDs, Optical switch for camera triggering. Or perhaps you should just be able to add an extension pcb such as this one.
> SPI:
> Is this available somewhere? I see it is mentioned on the FMU specs.
> Other:
> While this most likely goes beyond plans for a board like this it got me thinking about support for Gumstix COMs.
> Thanks,
> Simon
> On Saturday, September 22, 2012 3:39:26 PM UTC+2, Lorenz Meier wrote:
> Hi all,
> Initially the plan was to have this board released with the rest of the series, but we needed to rework some important aspects and essentially started from scratch. I'm now requesting feedback, please find attached an EARLY draft, its by no means a complete board, but illustrates nicely the direction we're heading towards.
> It is intended as multi rotor adapter board and for hacking setups where other specially PX4 carrier boards might not provide interfaces that are wanted. It does only mechanical / electrical interface conversion and has no active components, except for a 4.7V supply, on it.
> FEEDBACK:
> Please provide info about:
> - What interfaces are missing > - What mechanical mounts are missing (e.g. DJI frames, please provide measurements and hole diameters) > - In which setup you could imagine using this board > - Other comments
> Thanks!
> -Lorenz
> MECHANICAL:
> - Fits 50 x 50 mm boards / 45 x 45 mm mounts (e.g. Mikrokopter) > - Fits 30 x 30 mm mounts (all PX4 boards do) > - Fits ArduPilotMega 2.x mounts > - Offers 3DR u-blox module mount (not yet on draft)
> INTERFACES:
> - 4-6x PWM (servo) out on standard 0.1" headers > - 4x FTDI pinouts for all four UARTs > - 2x I2C out > - PPM sum signal / CPPM in
> POWER:
> - One RECOM regulator will provide 4.7V for FMU and other electronics
> KIT:
> - All connectors are through-hole, the board will be available as kit > - Board pricing will be very low-ended
> You received this message because you are subscribed to the Google Groups px4users group. To post to this group, send email to px4users@googlegroups.com. To unsubscribe from this group, send email to px4users+unsubscribe@googlegroups.com. For more options, visit this group at https://groups.google.com/d/forum/px4users?hl=en-US
On Saturday, September 22, 2012 10:04:29 PM UTC+2, PX4 Developer wrote: > Simon,
> One of the major reasons for the expansion bus is to make it easy to > design your own add-ons. IOLite will help for one-offs where designing a > board doesn't make sense, but for a COM interface you'll want to design > your own.
> I've given Lorenz mounting details for the DJI F450 - do you happen to > know whether the F330 uses the same (27x34mm) slots, or is it laid out > differently?
I will reply with the measurements tomorrow. I chose to mount the board in the center of the DJI and not the front. I just drilled the holes into the bottom plate.
> It would also help to know the clearance from the mounting holes to the > arms, as that dimension is already quite tight on the F450.
> = Mike
> On Sep 22, 2012, at 12:18 PM, Simon Wilks wrote:
> This looks great and would fit my immediate needs.
> Current Use: > DJI F330/F450 but they don't provide any mounting holes and it is > necessary to drill your own.
> Power Options: > This might go beyond what will fit into a PCB of this size but supporting > 9V for FPV, 12V for LEDs, Optical switch for camera triggering. Or perhaps > you should just be able to add an extension pcb such as this one<http://www.flyinghigh.ch/index.php/en/home.html?page=shop.product_det...> > .
> SPI: > Is this available somewhere? I see it is mentioned on the FMU specs.
> Other: > While this most likely goes beyond plans for a board like this it got me > thinking about support for Gumstix COMs.
> Thanks, > Simon
> On Saturday, September 22, 2012 3:39:26 PM UTC+2, Lorenz Meier wrote:
>> Hi all,
>> Initially the plan was to have this board released with the rest of the >> series, but we needed to rework some important aspects and essentially >> started from scratch. I'm now requesting feedback, please find attached an >> EARLY draft, its by no means a complete board, but illustrates nicely the >> direction we're heading towards.
>> It is intended as multi rotor adapter board and for hacking setups where >> other specially PX4 carrier boards might not provide interfaces that are >> wanted. It does only mechanical / electrical interface conversion and has >> no active components, except for a 4.7V supply, on it.
>> FEEDBACK:
>> Please provide info about:
>> - What interfaces are missing >> - What mechanical mounts are missing (e.g. DJI frames, please provide >> measurements and hole diameters) >> - In which setup you could imagine using this board >> - Other comments
>> Thanks!
>> -Lorenz
>> MECHANICAL:
>> - Fits 50 x 50 mm boards / 45 x 45 mm mounts (e.g. Mikrokopter) >> - Fits 30 x 30 mm mounts (all PX4 boards do) >> - Fits ArduPilotMega 2.x mounts >> - Offers 3DR u-blox module mount (not yet on draft)
>> INTERFACES:
>> - 4-6x PWM (servo) out on standard 0.1" headers >> - 4x FTDI pinouts for all four UARTs >> - 2x I2C out >> - PPM sum signal / CPPM in
>> POWER:
>> - One RECOM regulator will provide 4.7V for FMU and other electronics
>> KIT:
>> - All connectors are through-hole, the board will be available as kit >> - Board pricing will be very low-ended
> You received this message because you are subscribed to the Google Groups > px4users group. To post to this group, send email to > px4u...@googlegroups.com <javascript:>. To unsubscribe from this group, > send email to px4users+u...@googlegroups.com <javascript:>. For more > options, visit this group at > https://groups.google.com/d/forum/px4users?hl=en-US
And a fuzzy photo showing the arm post clearance and relative size of the PXFMU. If the mounting holes are centered on the board the PX4FMU will stick out over the front of the base plate, which probably doesn't matter but won't look so good. If you want it flush with the board, as in the photo below, you will have a problem with the holes colliding with those of the PX4FMU's. Alternatively you will need to make the distance mounting holes pretty small. Personally, I think mounting it mid-frame is the best option for the F330.
Could you maybe physically print out the IOlite draft (its 1:1 scale if printed on A4 paper) and check if it fits? I have the impression it could be quite tight on the F330.
> Could you maybe physically print out the IOlite draft (its 1:1 scale if
> printed on A4 paper) and check if it fits? I have the impression it could
> be quite tight on the F330.
> You received this message because you are subscribed to the Google Groups
> px4users group. To post to this group, send email to
> px4users@googlegroups.com. To unsubscribe from this group, send email to
> px4users+unsubscribe@googlegroups.com. For more options, visit this group
> at https://groups.google.com/d/forum/px4users?hl=en-US
On Sunday, September 23, 2012 3:09:24 PM UTC+2, Simon Wilks wrote:
> Sure. I will send it tonight. > On Sep 23, 2012 2:30 PM, "Meier Lorenz" <l...@inf.ethz.ch> wrote:
>> Thanks!
>> Could you maybe physically print out the IOlite draft (its 1:1 scale if >> printed on A4 paper) and check if it fits? I have the impression it could >> be quite tight on the F330.
>> You received this message because you are subscribed to the Google Groups >> px4users group. To post to this group, send email to >> px4users@googlegroups.com. To unsubscribe from this group, send email to >> px4users+unsubscribe@googlegroups.com. For more options, visit this >> group at https://groups.google.com/d/forum/px4users?hl=en-US
On Saturday, September 22, 2012 8:39:26 AM UTC-5, Lorenz Meier wrote:
> Hi all,
> Initially the plan was to have this board released with the rest of the > series, but we needed to rework some important aspects and essentially > started from scratch. I'm now requesting feedback, please find attached an > EARLY draft, its by no means a complete board, but illustrates nicely the > direction we're heading towards.
> It is intended as multi rotor adapter board and for hacking setups where > other specially PX4 carrier boards might not provide interfaces that are > wanted. It does only mechanical / electrical interface conversion and has > no active components, except for a 4.7V supply, on it.
> FEEDBACK:
> Please provide info about:
> - What interfaces are missing > - What mechanical mounts are missing (e.g. DJI frames, please provide > measurements and hole diameters) > - In which setup you could imagine using this board > - Other comments
> Thanks!
> -Lorenz
> MECHANICAL:
> - Fits 50 x 50 mm boards / 45 x 45 mm mounts (e.g. Mikrokopter) > - Fits 30 x 30 mm mounts (all PX4 boards do) > - Fits ArduPilotMega 2.x mounts > - Offers 3DR u-blox module mount (not yet on draft)
> INTERFACES:
> - 4-6x PWM (servo) out on standard 0.1" headers > - 4x FTDI pinouts for all four UARTs > - 2x I2C out > - PPM sum signal / CPPM in
> POWER:
> - One RECOM regulator will provide 4.7V for FMU and other electronics
> KIT:
> - All connectors are through-hole, the board will be available as kit > - Board pricing will be very low-ended
> On Saturday, September 22, 2012 8:39:26 AM UTC-5, Lorenz Meier wrote:
> Hi all,
> Initially the plan was to have this board released with the rest of the series, but we needed to rework some important aspects and essentially started from scratch. I'm now requesting feedback, please find attached an EARLY draft, its by no means a complete board, but illustrates nicely the direction we're heading towards.
> It is intended as multi rotor adapter board and for hacking setups where other specially PX4 carrier boards might not provide interfaces that are wanted. It does only mechanical / electrical interface conversion and has no active components, except for a 4.7V supply, on it.
> FEEDBACK:
> Please provide info about:
> - What interfaces are missing > - What mechanical mounts are missing (e.g. DJI frames, please provide measurements and hole diameters) > - In which setup you could imagine using this board > - Other comments
> Thanks!
> -Lorenz
> MECHANICAL:
> - Fits 50 x 50 mm boards / 45 x 45 mm mounts (e.g. Mikrokopter) > - Fits 30 x 30 mm mounts (all PX4 boards do) > - Fits ArduPilotMega 2.x mounts > - Offers 3DR u-blox module mount (not yet on draft)
> INTERFACES:
> - 4-6x PWM (servo) out on standard 0.1" headers > - 4x FTDI pinouts for all four UARTs > - 2x I2C out > - PPM sum signal / CPPM in
> POWER:
> - One RECOM regulator will provide 4.7V for FMU and other electronics
> KIT:
> - All connectors are through-hole, the board will be available as kit > - Board pricing will be very low-ended
> You received this message because you are subscribed to the Google Groups px4users group. To post to this group, send email to px4users@googlegroups.com. To unsubscribe from this group, send email to px4users+unsubscribe@googlegroups.com. For more options, visit this group at https://groups.google.com/d/forum/px4users?hl=en-US
> On Saturday, September 22, 2012 8:39:26 AM UTC-5, Lorenz Meier wrote:
>> Hi all,
>> Initially the plan was to have this board released with the rest of the >> series, but we needed to rework some important aspects and essentially >> started from scratch. I'm now requesting feedback, please find attached an >> EARLY draft, its by no means a complete board, but illustrates nicely the >> direction we're heading towards.
>> It is intended as multi rotor adapter board and for hacking setups where >> other specially PX4 carrier boards might not provide interfaces that are >> wanted. It does only mechanical / electrical interface conversion and has >> no active components, except for a 4.7V supply, on it.
>> FEEDBACK:
>> Please provide info about:
>> - What interfaces are missing >> - What mechanical mounts are missing (e.g. DJI frames, please provide >> measurements and hole diameters) >> - In which setup you could imagine using this board >> - Other comments
>> Thanks!
>> -Lorenz
>> MECHANICAL:
>> - Fits 50 x 50 mm boards / 45 x 45 mm mounts (e.g. Mikrokopter) >> - Fits 30 x 30 mm mounts (all PX4 boards do) >> - Fits ArduPilotMega 2.x mounts >> - Offers 3DR u-blox module mount (not yet on draft)
>> INTERFACES:
>> - 4-6x PWM (servo) out on standard 0.1" headers >> - 4x FTDI pinouts for all four UARTs >> - 2x I2C out >> - PPM sum signal / CPPM in
>> POWER:
>> - One RECOM regulator will provide 4.7V for FMU and other electronics
>> KIT:
>> - All connectors are through-hole, the board will be available as kit >> - Board pricing will be very low-ended
> You received this message because you are subscribed to the Google Groups > px4users group. To post to this group, send email to > px4u...@googlegroups.com <javascript:>. To unsubscribe from this group, > send email to px4users+u...@googlegroups.com <javascript:>. For more > options, visit this group at > https://groups.google.com/d/forum/px4users?hl=en-US
