[OZAPRS] LoRA tracking

[Justin Albury]

Hhahaha….now that cleared things up a little.  Thank you!!

I have only done a little reading on LoRA, as a MQTT user it looks like a nice option for non-HAM projects.

Thanks

Justin Albury
J Albury Communications
justin at jacomms.com<mailto:justin at jacomms.com>
0417246791
VK2JUZ
-----------------------------------------------------------------
This email, and any attachments are for the use of the intended
recipient(s) and may contain confidential/privileged information.
If you have received this email in error, please notify the sender
immediately and then delete it. If you are not the intended recipient,
you must not copy, disclose or distribute its contents to any other
person. We do not accept any liability in connection with transmitting,
unauthorised access to, or viruses in this email and its attachments.
This notice should not be removed.
----------------------------------------------------------------------------------

From: OZAPRS [mailto:ozaprs-bounces at aprs.net.au] On Behalf Of Mark Jessop
Sent: Tuesday, 7 November 2017 7:11 PM
To: Australian APRS Users <ozaprs at aprs.net.au>
Subject: Re: [OZAPRS] LoRA tracking

Nice descriptive reply there...

Not quite sure why we're talking about LoRa in the Australian APRS list, but anyway...

Cheap LoRa Arduino Shield: https://www.seeedstudio.com/Dragino-LoRa-Shield-support-433M-frequency-p-2672.html  (similar available for 915 MHz).
LoRa Raspberry Pi Shield: http://www.dragino.com/products/module/item/106-lora-gps-hat.html
... and probably something similar available from Jaycar, I guess?

We've been using LoRa modules in the Project Horus 'flight termination' payload (which also has GPS tracking) for a few years now. We run them on the 434 MHz ISM band at 25mW, for command & control of the cutdown mechanism (nichrome wire). We have a whole ecosystem of software based around communicating with the cutdown payload and transferring data around the chase car's network.
Ground Station: https://github.com/projecthorus/HorusGroundStation
Payload: https://github.com/projecthorus/FlexTrack-Horus

Quite a few libraries around to talk to the LoRa ICs (usually a Semtech SX127x series chip).
Python Library for use on a Raspberry Pi: https://github.com/mayeranalytics/pySX127x
Arduino Library: http://www.airspayce.com/mikem/arduino/RadioHead/

Unfortunately the LoRa modulation scheme is patented, so use of it on the amateur radio band is a bit contentious. At the very least, there's a reverse engineered gnuradio library available: https://github.com/BastilleResearch/gr-lora

73
Mark VK5QI


On Tue, Nov 7, 2017 at 5:58 PM, Andrew Rich <vk4tec at tech-software.net<mailto:vk4tec at tech-software.net>> wrote:
Jaycar
Sent from my iPhone

On 7 Nov 2017, at 5:13 pm, Justin Albury <justin at jacomms.com<mailto:justin at jacomms.com>> wrote:
Whats involved in (hardware) for the LoRA projects??

Any links??

Justin Albury
J Albury Communications
justin at jacomms.com<mailto:justin at jacomms.com>
0417246791

-----------------------------------------------------------------
This email, and any attachments are for the use of the intended
recipient(s) and may contain confidential/privileged information.
If you have received this email in error, please notify the sender
immediately and then delete it. If you are not the intended recipient,
you must not copy, disclose or distribute its contents to any other
person. We do not accept any liability in connection with transmitting,
unauthorised access to, or viruses in this email and its attachments.
This notice should not be removed.
----------------------------------------------------------------------------------

From: OZAPRS [mailto:ozaprs-bounces at aprs.net.au] On Behalf Of vk4tec at tech-software.net<mailto:vk4tec at tech-software.net>
Sent: Tuesday, 7 November 2017 11:50 AM
To: 'Australian APRS Users' <ozaprs at aprs.net.au<mailto:ozaprs at aprs.net.au>>
Subject: [OZAPRS] LoRA tracking

Playing with GPS / Arduino and LoRA 915 MHz modules

Andy VK4TEC
_______________________________________________
OZAPRS mailing list
OZAPRS at aprs.net.au<mailto:OZAPRS at aprs.net.au>
http://lists.aprs.net.au/mailman/listinfo/ozaprs

_______________________________________________
OZAPRS mailing list
OZAPRS at aprs.net.au<mailto:OZAPRS at aprs.net.au>
http://lists.aprs.net.au/mailman/listinfo/ozaprs

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.aprs.net.au/pipermail/ozaprs/attachments/20171107/4a92aa87/attachment-0001.html>