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Jon,
Thanks for the links and the picture. As discussed I can pitch in and I’ve ordered 4 of them.
I’m with Jon that I think these look very promising. Here’s a selection of a few products that use the same chip including one for that tiny quadcopter.
https://www.bitcraze.io/category/frontpage/page/2/
http://shop.loligo.se/product/lps-mini (https://hackaday.io/project/7183-lps-mini)
From some random googling, here’s an open source project that has some Arduino software to talk to the module including a break-out board design.
https://github.com/thotro/arduino-dw1000
https://www.oshpark.com/shared_projects/2qZiePck
-Randy
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Yep. The DWM1000 datasheet is here (See page 9):The LM1117T-3.3 datasheet is here:The Pixhawk SPI connector pinout is here:Connect ground (it is *not* the heatsink tab) on the LM1117T to one of the DWM1000's VSS pinsConnect Vout on the LM1117T to one of the DWM1000's VDD3V3 pinsConnect ground on the LM1117T to the ground plane, if you're using oneConnect ground on the LM1117T to a black DF13 wireConnect Vin on the LM1117T to a red DF13 wireConnect IRQ, SPICLK, SPIMISO, SPIMOSI, SPICSn to black DF13 wiresPut the DF13 wires into a 7-pin DF13 housing in the correct order according to the Pixhawk pinout. I connected IRQ to the GPIO pin, you might want to leave it out at first.
Jon,
Here’s a wiring diagram. Does this look correct to you?
I just want to make sure before I do a bunch of soldering.
-Randy
From: drones-...@googlegroups.com [mailto:drones-...@googlegroups.com] On Behalf Of Jonathan Challinger
Sent: 12-Aug-16 3:31 AM
To: drones-...@googlegroups.com
Subject: Re: [drones-discuss] Re: UWB localization for ArduPilot
Here's a bundle of app notes etc that were emailed to me by a DecaWave guy: https://drive.google.com/folderview?id=0B1PwjcDYi3utdHJ1cTBEWGZGaGM&usp=sharing
On Thu, Aug 11, 2016 at 11:28 AM, Jonathan Challinger <mr.cha...@gmail.com> wrote:
On Mon, Aug 8, 2016 at 11:11 AM, Jonathan Challinger <mr.cha...@gmail.com> wrote:
Yep. The DWM1000 datasheet is here (See page 9):
The LM1117T-3.3 datasheet is here:
The Pixhawk SPI connector pinout is here:
Connect ground (it is *not* the heatsink tab) on the LM1117T to one of the DWM1000's VSS pins
Connect Vout on the LM1117T to one of the DWM1000's VDD3V3 pins
Connect ground on the LM1117T to the ground plane, if you're using one
Connect ground on the LM1117T to a black DF13 wire
Connect Vin on the LM1117T to a red DF13 wire
Connect IRQ, SPICLK, SPIMISO, SPIMOSI, SPICSn to black DF13 wires
Put the DF13 wires into a 7-pin DF13 housing in the correct order according to the Pixhawk pinout. I connected IRQ to the GPIO pin, you might want to leave it out at first.
On Sun, Aug 7, 2016 at 7:43 PM, 'Randy Mackay' via drones-discuss <drones-...@googlegroups.com> wrote:
Jon,
Could you share how you've wired up the sensor to the regulator and Pixhawk?
I agree that we don't know which architecture is better yet (i.e. straight connection to pixhawk or interim micro). I guess it will depend upon how much communication needs to happen between the pixhawk and the sensor.
-Randy
-----Original Message-----
From: drones-...@googlegroups.com [mailto:drones-...@googlegroups.com] On Behalf Of james pattison
Sent: 7-Aug-16 7:50 AM
To: drones-discuss
Subject: [drones-discuss] Re: UWB localization for ArduPilot
I think a foot in both camps might be worthwhile here: the rover direct spi on the vehicle, with base units on an arduino or similar. Using a ph for each static unit seems overkill (might be a good repurpose for apm2.x though?) I've ordered 6 dwm1000 modules, and will put together 4 of the pro-mini boards. I'm in Canberra so these will be available to grant and/or tridge should they be interested.
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You'll also want some caps on the 2 rails of the regulator.
Jon,
Here’s a wiring diagram. Does this look correct to you?
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Yep, I think so. I thought we weren't connecting it directly to Pixhawk though.
Jon,
Here’s a wiring diagram. Does this look correct to you?
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Jon,
I think directly connecting it is a decent first step so we can write a driver. If we insert a little computer in between later that’s fine but I hope we can get the basic communication working with our existing hardware and tools.
I think maybe there’s something wrong with the connection to the regulator..
Jon,
I think directly connecting it is a decent first step so we can write a driver. If we insert a little computer in between later that’s fine but I hope we can get the basic communication working with our existing hardware and tools.
I think maybe there’s something wrong with the connection to the regulator..
-Randy
From: drones-discuss@googlegroups.com [mailto:drones-discuss@googlegroups.com] On Behalf Of Jonathan Challinger
Sent: 13-Sep-16 12:36 AM
To: drones-discuss@googlegroups.com
Subject: RE: [drones-discuss] Re: UWB localization for ArduPilot
Yep, I think so. I thought we weren't connecting it directly to Pixhawk though.
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Here’s an updated wiring diagram:
- Changed DWM1000’s VDD3V3 to connect to regulator’s OUTPUT instead of Vout. This is different than Jon’s emailed instructions but this change is consistent with what Craig said on the call and I think the picture Jon sent.
- Added two regulators (suggestion from TomP).
-Randy
From: drones-...@googlegroups.com [mailto:drones-...@googlegroups.com] On Behalf Of Jonathan Challinger
Sent: 13-Sep-16 9:43 AM
To: drones-...@googlegroups.com
Subject: Re: [drones-discuss] Re: UWB localization for ArduPilot
I think the driver for the STM32F302 will be totally different from an APM or PX4 driver. That's why I want to get the STM32F302 board done first.
On Mon, Sep 12, 2016 at 4:47 PM, 'Randy Mackay' via drones-discuss <drones-...@googlegroups.com> wrote:
Jon,
I think directly connecting it is a decent first step so we can write a driver. If we insert a little computer in between later that’s fine but I hope we can get the basic communication working with our existing hardware and tools.
I think maybe there’s something wrong with the connection to the regulator..
-Randy
From: drones-...@googlegroups.com [mailto:drones-...@googlegroups.com] On Behalf Of Jonathan Challinger
Sent: 13-Sep-16 12:36 AM
To: drones-...@googlegroups.com
Subject: RE: [drones-discuss] Re: UWB localization for ArduPilot
Yep, I think so. I thought we weren't connecting it directly to Pixhawk though.
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On Sep 12, 2016 4:26 AM, "'Randy Mackay' via drones-discuss" <drones-...@googlegroups.com> wrote:
Jon,
Here’s a wiring diagram. Does this look correct to you?
I just want to make sure before I do a bunch of soldering.
-Randy
From: drones-...@googlegroups.com [mailto:drones-...@googlegroups.com] On Behalf Of Jonathan Challinger
Sent: 12-Aug-16 3:31 AM
To: drones-...@googlegroups.com
Subject: Re: [drones-discuss] Re: UWB localization for ArduPilot
Here's a bundle of app notes etc that were emailed to me by a DecaWave guy: https://drive.google.com/folderview?id=0B1PwjcDYi3utdHJ1cTBEWGZGaGM&usp=sharing
On Thu, Aug 11, 2016 at 11:28 AM, Jonathan Challinger <mr.cha...@gmail.com> wrote:
On Mon, Aug 8, 2016 at 11:11 AM, Jonathan Challinger <mr.cha...@gmail.com> wrote:
Yep. The DWM1000 datasheet is here (See page 9):
The LM1117T-3.3 datasheet is here:
The Pixhawk SPI connector pinout is here:
Connect ground (it is *not* the heatsink tab) on the LM1117T to one of the DWM1000's VSS pins
Connect Vout on the LM1117T to one of the DWM1000's VDD3V3 pins
Connect ground on the LM1117T to the ground plane, if you're using one
Connect ground on the LM1117T to a black DF13 wire
Connect Vin on the LM1117T to a red DF13 wire
Connect IRQ, SPICLK, SPIMISO, SPIMOSI, SPICSn to black DF13 wires
Put the DF13 wires into a 7-pin DF13 housing in the correct order according to the Pixhawk pinout. I connected IRQ to the GPIO pin, you might want to leave it out at first.
On Sun, Aug 7, 2016 at 7:43 PM, 'Randy Mackay' via drones-discuss <drones-...@googlegroups.com> wrote:
Jon,
Could you share how you've wired up the sensor to the regulator and Pixhawk?
I agree that we don't know which architecture is better yet (i.e. straight connection to pixhawk or interim micro). I guess it will depend upon how much communication needs to happen between the pixhawk and the sensor.
-Randy
-----Original Message-----
From: drones-...@googlegroups.com [mailto:drones-...@googlegroups.com] On Behalf Of james pattison
Sent: 7-Aug-16 7:50 AM
To: drones-discuss
Subject: [drones-discuss] Re: UWB localization for ArduPilot
I think a foot in both camps might be worthwhile here: the rover direct spi on the vehicle, with base units on an arduino or similar. Using a ph for each static unit seems overkill (might be a good repurpose for apm2.x though?) I've ordered 6 dwm1000 modules, and will put together 4 of the pro-mini boards. I'm in Canberra so these will be available to grant and/or tridge should they be interested.
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If you need help with the DWM1000 stuff I urge you to email Niklas from the Loligo link Randy posted: nik...@casaril.com
He created the LPS mini which has a heap of other sensors on it as well. It's a tiny module with an arduino nano equivalent chip built and would be exactly what you guys seem to be looking for. I tested his LPS mini and it works well! We have it hooked into an Edison which is acting as a companion computer for the Pixhawk.
Regards,
Cameron
LPS mini info here: https://hackaday.io/project/7183-lps-mini
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