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Long Range Modules, Semtech SX1278/SX1276

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14 Nov 2016 16:17 #55925 by Fernandez
Semtech brings some LORA modules with very good performances for range and reception level, I think the best currently available at the market.
There are several modules available on the web cheaply in several versions. (I understand but not sure it also used in TBS Crossfire system)

Maybe at some point it is time to start a "deviation open source", protocol and open hardware? Not reverse engineered?
As long as stock modules can be used there is not much hardware design needed, rather than maybe a regulator?
The rx could bea 1 pin sbus output? (From Sbus to pwm there are solutions)

If the link is open source we could update and focus on the link and best implementations on both sides, rather than hacking and having to del with excisting design. Maybe even we get flight controllers, with the module connected over SPI direct, not anymore bother with sbus etc. Maybe even will be more a telemetry link?

Haha anyway just brainstorming, wishfull thinking, for the "Future RC link".

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16 Nov 2016 16:34 #55965 by Khan
I would love to see something like that. Not necessarily Long Range, a protocol that uses one of the current 4 modules supported by Deviation.
And about Rx output, could UART be feasible ? Or a Rx that plugs into the USB port of the FC (thinking of multirotors here) ?

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28 Feb 2017 15:21 #59712 by Fernandez
Replied by Fernandez on topic Long Range Modules, Semtech SX1278/SX1276
For people who like to build a LRS system, I just stumbled on this blog, sending CPPM and MAVLINK using some Semtech LORA modules.

qczek.beyondrc.com/qczek-lrs-433mhz-1w-l...nical-specyfication/

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20 Sep 2017 12:52 #64546 by Fernandez
Replied by Fernandez on topic Long Range Modules, Semtech SX1278/SX1276
Anyone here who uses QCZEK LRS? It is bidirectional long range link.
Would be great if deviation could have lora module support for long range.

www.rcgroups.com/forums/showthread.php?2...-LINK-with-telemetry

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20 Sep 2017 13:08 #64547 by ajtank
Replied by ajtank on topic Long Range Modules, Semtech SX1278/SX1276

Fernandez wrote: Semtech brings some LORA modules with very good performances for range and reception level, I think the best currently available at the market.
There are several modules available on the web cheaply in several versions. (I understand but not sure it also used in TBS Crossfire system)

Maybe at some point it is time to start a "deviation open source", protocol and open hardware? Not reverse engineered?
As long as stock modules can be used there is not much hardware design needed, rather than maybe a regulator?
The rx could bea 1 pin sbus output? (From Sbus to pwm there are solutions)

If the link is open source we could update and focus on the link and best implementations on both sides, rather than hacking and having to del with excisting design. Maybe even we get flight controllers, with the module connected over SPI direct, not anymore bother with sbus etc. Maybe even will be more a telemetry link?

Haha anyway just brainstorming, wishfull thinking, for the "Future RC link".


Lora is for low data rate application. Just look at the module and it seems the highest air data rate is only 19.2kbps.

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14 Nov 2017 10:45 #65817 by Macklemore
Replied by Macklemore on topic Long Range Modules, Semtech SX1278/SX1276
Since it uses PPM there's not any reason you can't run it now. QLRS doesn't have a separate serial protocol like Crossfire.

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27 Mar 2018 09:36 - 23 May 2018 14:58 #68370 by Fernandez
Replied by Fernandez on topic Long Range Modules, Semtech SX1278/SX1276
Next to official systems: TBS crossfire and Frsky R9

DIY project QCzek LRS, is getting good reports, but more DIY projects are experimenting with lora modules:
qczek.beyondrc.com/qczek-lrs-433mhz-1w-lora-rc-link/
github.com/iNavFlight/YALRS
github.com/RavenLRS/raven
quadmeup.com/quadmeup-crossbow-lrs-introduction/

I expect that lora will soon be new standard for long range instead of Silabs UHF chip.
Last edit: 23 May 2018 14:58 by Fernandez.

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27 Jul 2018 03:04 #69961 by reednoel4u
Replied by reednoel4u on topic Long Range Modules, Semtech SX1278/SX1276
Hi @Fernandez,
This module Semtech SX1278/SX1276, can mod for Devo10 ?
Please give me the link if before you make it with many thanks.
Rgs.
Reed.

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30 Jul 2018 11:19 #69994 by Fernandez
Replied by Fernandez on topic Long Range Modules, Semtech SX1278/SX1276
Semtech modules and protocols are not yet supported, but indeed would love to get it, as it is bit of the new upcoming standard for longer ranges.....

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