GPS enabled boards.

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samuk＠disroot.org

3 Jan 2020 3 Jan '20

3:09 a.m.

Hi all I spotted these boards yesterday: https://www.aliexpress.com/item/4000469332610.html They have onboard GPS. It looks like Grant will try to support them: https://github.com/sudomesh/disaster-radio/issues/33 So if you are thinking of buying some test hardware and have some technical skill they might be a good choice. I think it would add a lot to the usefulness of the devices. I guess it would be good to have a coarse or precise setting. If I'm just driving around day to day I may not want to be tracked, If I'm about to go and fight a bushfire I'd probably be happy for people to know exactly where I am. Are you planning to incorporate a GPS into the custom boards that are under development? Thanks Sam

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Dean H (KC4KSU)

11 Jan 11 Jan

9:39 p.m.

Is there any schematic for the pcb? It would be helpful to know if/how they connected the GPS’s PPS signal, the SPI’s CS and the LoRa’s DIOx pins to the microcontroller. !!Dean

...

On Jan 3, 2020, at 5:09 AM, samuk(a)disroot.org wrote: Hi all I spotted these boards yesterday: https://www.aliexpress.com/item/4000469332610.html They have onboard GPS. It looks like Grant will try to support them: https://github.com/sudomesh/disaster-radio/issues/33 So if you are thinking of buying some test hardware and have some technical skill they might be a good choice. I think it would add a lot to the usefulness of the devices. I guess it would be good to have a coarse or precise setting. If I'm just driving around day to day I may not want to be tracked, If I'm about to go and fight a bushfire I'd probably be happy for people to know exactly where I am. Are you planning to incorporate a GPS into the custom boards that are under development? Thanks Sam _______________________________________________ DisasterRadio mailing list DisasterRadio(a)lists.sudoroom.org https://sudoroom.org/lists/listinfo/disasterradio

Morgan Allen

10:28 p.m.

https://github.com/Xinyuan-LilyGO/TTGO-T-Beam/blob/master/schematic/T_BeamV… Looks like PPS is connected as TIME_PULSE. LilyGO has gotten better about hooking up the DIO pins lately and this one even has DI0-2 On Sat, Jan 11, 2020, 9:39 PM Dean H (KC4KSU) <dean.kc4ksu(a)gmail.com> wrote:

...

Is there any schematic for the pcb? It would be helpful to know if/how they connected the GPS’s PPS signal, the SPI’s CS and the LoRa’s DIOx pins to the microcontroller. !!Dean

On Jan 3, 2020, at 5:09 AM, samuk(a)disroot.org wrote: Hi all I spotted these boards yesterday:

https://www.aliexpress.com/item/4000469332610.html They have onboard GPS.

It looks like Grant will try to support them:

https://github.com/sudomesh/disaster-radio/issues/33

So if you are thinking of buying some test hardware and have some

technical skill they might be a good choice.

I think it would add a lot to the usefulness of the devices. I guess it would be good to have a coarse or precise setting. If I'm

just driving around day to day I may not want to be tracked, If I'm about to go and fight a bushfire I'd probably be happy for people to know exactly where I am.

Are you planning to incorporate a GPS into the custom boards that are

under development?

Thanks Sam _______________________________________________ DisasterRadio mailing list DisasterRadio(a)lists.sudoroom.org https://sudoroom.org/lists/listinfo/disasterradio

_______________________________________________ DisasterRadio mailing list DisasterRadio(a)lists.sudoroom.org https://sudoroom.org/lists/listinfo/disasterradio

Morgan Allen

10:50 p.m.

Also that ad is for the old version 0.7 and that schematic is for the newer 1.0 that can also be found on ali. On Sat, Jan 11, 2020, 10:28 PM Morgan Allen <morganrallen(a)gmail.com> wrote:

...

Is there any schematic for the pcb? It would be helpful to know if/how they connected the GPS’s PPS signal, the SPI’s CS and the LoRa’s DIOx pins to the microcontroller. !!Dean

On Jan 3, 2020, at 5:09 AM, samuk(a)disroot.org wrote: Hi all I spotted these boards yesterday:

https://www.aliexpress.com/item/4000469332610.html They have onboard GPS.

It looks like Grant will try to support them:

https://github.com/sudomesh/disaster-radio/issues/33

So if you are thinking of buying some test hardware and have some

technical skill they might be a good choice.

I think it would add a lot to the usefulness of the devices. I guess it would be good to have a coarse or precise setting. If I'm

just driving around day to day I may not want to be tracked, If I'm about to go and fight a bushfire I'd probably be happy for people to know exactly where I am.

Are you planning to incorporate a GPS into the custom boards that are

under development?

Thanks Sam _______________________________________________ DisasterRadio mailing list DisasterRadio(a)lists.sudoroom.org https://sudoroom.org/lists/listinfo/disasterradio

_______________________________________________ DisasterRadio mailing list DisasterRadio(a)lists.sudoroom.org https://sudoroom.org/lists/listinfo/disasterradio

Dean H (KC4KSU)

12 Jan 12 Jan

8:07 a.m.

Cool, thanks. I like to use DIO3/ValidHeader to (subtract a constant value to) get an accurate timestamp of when a packet is received. I would need a flywire. !!Dean

...

On Jan 12, 2020, at 12:28 AM, Morgan Allen <morganrallen(a)gmail.com> wrote: https://github.com/Xinyuan-LilyGO/TTGO-T-Beam/blob/master/schematic/T_BeamV… <https://github.com/Xinyuan-LilyGO/TTGO-T-Beam/blob/master/schematic/T_BeamV1.0.pdf> Looks like PPS is connected as TIME_PULSE. LilyGO has gotten better about hooking up the DIO pins lately and this one even has DI0-2 On Sat, Jan 11, 2020, 9:39 PM Dean H (KC4KSU) <dean.kc4ksu(a)gmail.com <mailto:dean.kc4ksu@gmail.com>> wrote: Is there any schematic for the pcb? It would be helpful to know if/how they connected the GPS’s PPS signal, the SPI’s CS and the LoRa’s DIOx pins to the microcontroller. !!Dean

On Jan 3, 2020, at 5:09 AM, samuk(a)disroot.org <mailto:samuk@disroot.org> wrote: Hi all I spotted these boards yesterday: https://www.aliexpress.com/item/4000469332610.html <https://www.aliexpress.com/item/4000469332610.html> They have onboard GPS. It looks like Grant will try to support them: https://github.com/sudomesh/disaster-radio/issues/33 <https://github.com/sudomesh/disaster-radio/issues/33> So if you are thinking of buying some test hardware and have some technical skill they might be a good choice. I think it would add a lot to the usefulness of the devices. I guess it would be good to have a coarse or precise setting. If I'm just driving around day to day I may not want to be tracked, If I'm about to go and fight a bushfire I'd probably be happy for people to know exactly where I am. Are you planning to incorporate a GPS into the custom boards that are under development? Thanks Sam _______________________________________________ DisasterRadio mailing list DisasterRadio(a)lists.sudoroom.org <mailto:DisasterRadio@lists.sudoroom.org> https://sudoroom.org/lists/listinfo/disasterradio <https://sudoroom.org/lists/listinfo/disasterradio>

_______________________________________________ DisasterRadio mailing list DisasterRadio(a)lists.sudoroom.org <mailto:DisasterRadio@lists.sudoroom.org> https://sudoroom.org/lists/listinfo/disasterradio <https://sudoroom.org/lists/listinfo/disasterradio>

Morgan Allen

12:30 p.m.

Interesting, I haven't used that interrupt yet, curiously what driver do you typically use? On Sun, Jan 12, 2020 at 8:07 AM Dean H (KC4KSU) <dean.kc4ksu(a)gmail.com> wrote:

...

Cool, thanks. I like to use DIO3/ValidHeader to (subtract a constant value to) get an accurate timestamp of when a packet is received. I would need a flywire. !!Dean On Jan 12, 2020, at 12:28 AM, Morgan Allen <morganrallen(a)gmail.com> wrote: https://github.com/Xinyuan-LilyGO/TTGO-T-Beam/blob/master/schematic/T_BeamV… Looks like PPS is connected as TIME_PULSE. LilyGO has gotten better about hooking up the DIO pins lately and this one even has DI0-2 On Sat, Jan 11, 2020, 9:39 PM Dean H (KC4KSU) <dean.kc4ksu(a)gmail.com> wrote:

Is there any schematic for the pcb? It would be helpful to know if/how they connected the GPS’s PPS signal, the SPI’s CS and the LoRa’s DIOx pins to the microcontroller. !!Dean

On Jan 3, 2020, at 5:09 AM, samuk(a)disroot.org wrote: Hi all I spotted these boards yesterday:

https://www.aliexpress.com/item/4000469332610.html They have onboard GPS.

It looks like Grant will try to support them:

https://github.com/sudomesh/disaster-radio/issues/33

So if you are thinking of buying some test hardware and have some

technical skill they might be a good choice.

I think it would add a lot to the usefulness of the devices. I guess it would be good to have a coarse or precise setting. If I'm

just driving around day to day I may not want to be tracked, If I'm about to go and fight a bushfire I'd probably be happy for people to know exactly where I am.

Are you planning to incorporate a GPS into the custom boards that are

under development?

Thanks Sam _______________________________________________ DisasterRadio mailing list DisasterRadio(a)lists.sudoroom.org https://sudoroom.org/lists/listinfo/disasterradio

_______________________________________________ DisasterRadio mailing list DisasterRadio(a)lists.sudoroom.org https://sudoroom.org/lists/listinfo/disasterradio

Dean H (KC4KSU)

7:33 p.m.

I wrote my own driver for a RasPi with a LoRa + GPS board. Before I share a link, I should warn that I created the project to satisfy my curiosities about a few different things and making software that was easy for others to understand was not a priority. Those curiosities: - Can Python be used effectively at the device driver level? - Can I teach myself how to architect software using state machines? - Can I develop a layered communications stack? - Can I create a mesh/multihop protocol? My long-term goal for the project was something very much like what is described in DR’s promo youtube video (which is why I’m here and interested in this project). Though I never planned on doing the Web interface part. I just wanted to build the radio network. I doubt my software will be much help to you guys, but here it is: The driver is: https://github.com/dwhall/sx127x_ahsm <https://github.com/dwhall/sx127x_ahsm> and the project is: https://github.com/dwhall/HeyMac <https://github.com/dwhall/HeyMac> Project Status is: I have two nodes that can beacon back and forth (MAC layer) and there’s nothing yet at the network layer. !!Dean

...

On Jan 12, 2020, at 2:30 PM, Morgan Allen <morganrallen(a)gmail.com> wrote: Interesting, I haven't used that interrupt yet, curiously what driver do you typically use? On Sun, Jan 12, 2020 at 8:07 AM Dean H (KC4KSU) <dean.kc4ksu(a)gmail.com <mailto:dean.kc4ksu@gmail.com>> wrote: Cool, thanks. I like to use DIO3/ValidHeader to (subtract a constant value to) get an accurate timestamp of when a packet is received. I would need a flywire. !!Dean

On Jan 12, 2020, at 12:28 AM, Morgan Allen <morganrallen(a)gmail.com <mailto:morganrallen@gmail.com>> wrote: https://github.com/Xinyuan-LilyGO/TTGO-T-Beam/blob/master/schematic/T_BeamV… <https://github.com/Xinyuan-LilyGO/TTGO-T-Beam/blob/master/schematic/T_BeamV1.0.pdf> Looks like PPS is connected as TIME_PULSE. LilyGO has gotten better about hooking up the DIO pins lately and this one even has DI0-2 On Sat, Jan 11, 2020, 9:39 PM Dean H (KC4KSU) <dean.kc4ksu(a)gmail.com <mailto:dean.kc4ksu@gmail.com>> wrote: Is there any schematic for the pcb? It would be helpful to know if/how they connected the GPS’s PPS signal, the SPI’s CS and the LoRa’s DIOx pins to the microcontroller. !!Dean

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Dean H (KC4KSU)
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samuk＠disroot.org