bo.herrmannsen at gmail.com
Thu Dec 31 11:45:02 GMT 2015
The reason i asked is that i belived that Lora was open all the way and one
of the HAB guys said they rejected it because it was not (think it was
And i just thought that the longer range would be ideal for them as they
have struggled a bit with ukhas.net to get a decent range
2015-12-31 11:20 GMT+01:00 Mike Stirling <mail at mikestirling.co.uk>:
> Hi Bo,
> The MAC layer (LoRAWAN), which I think Jeremy is referring to, is a public
> spec, but the underlying modulation is not. You can therefore currently
> only implement a LoRA system using one of Semtech's radios or a module
> based on their IP (e.g. Microchip). The modulation is some sort of chirp
> spread spectrum system so is non-trivial to reverse engineer, but efforts
> are ongoing in the community. Once that happens it would be possible to
> implement the physical layer in a software radio if that's what you want.
> Note that you can use a LoRA radio without the LoRAWAN MAC (as the HAB
> guys currently do). In this case it just becomes a proprietary data pipe
> like the RFM22B or RFM12, but with longer range.
> On 29/12/15 10:03, Jeremy Poulter wrote:
> From what I understand there is a component that is signed and you can not
> change it but I believe the source will be available at some point. This is
> the component that deals with the time slicing and transmitting so you can
> not send more than you are supposed to.
> On 28 December 2015 at 13:37, Bo Herrmannsen <bo.herrmannsen at gmail.com>
>> on the topic of using LoRa i have been told that parts of it are closed
>> source in the way that you send data off by AT commands and then "magic"
>> Have i been told wrong?
>> OpenTRV-dev mailing list
>> OpenTRV-dev at lists.opentrv.org.uk
> OpenTRV-dev mailing listOpenTRV-dev at lists.opentrv.org.ukhttp://lists.opentrv.org.uk/listinfo/opentrv-dev
> OpenTRV-dev mailing list
> OpenTRV-dev at lists.opentrv.org.uk
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