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Garmin SL-40 interface


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Mikael Markow
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Tim Dawson - 3/25/2025 11:03:49 AM
That's great. We've seen a few of these come on to the market in the last month since we introduced support for transferring frequencies. No need to send us one, but by all means come and show us at Friedrichshafen.


Ok, I will not be at Friedrichshafen but you will see it sooner or later somewhere.

As far as I know this is the first device with firmware application written specific for this, as I mentioned in August..
As far as I know this is the first device with the electronics and PCB designed specific for this.
As far as I know this is the first device designed to handle the harsh environment in an aircraft.

I of course think it is superior, for good reasons ;-)

Next week the RS422 version will be available too.

It is based nrf52832 with Nordic semiconductors Bluetooth stack and Zephyr RTOS and molded in urethane to protect from environment. It can have fw updated via Bluetooth.
Edited 3/25/2025 10:29:40 PM by Mikael Markow
Tim Dawson
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That's great. We've seen a few of these come on to the market in the last month since we introduced support for transferring frequencies. No need to send us one, but by all means come and show us at Friedrichshafen.
Mikael Markow
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Mikael Markow - 8/11/2024 7:45:38 PM
Tim Dawson - 8/8/2024 9:18:20 AM
The next release is nearly out, so the testing phase is pretty much over. You're welcome to try the beta though, at our beta page.

Tim,
I found this thread when googling for information of Bluetooth to aviation radio apps and hardware, since I just started a project making hardware and an app for this. (I use SD since 5 years though).

This project was inspired by the f.u.n.k.e. app with hardware suggestions.
It is ok but sort of limited and outdated. So my plan is to make modern hardware and a better app for transferring frequencies to aviation radios.

I run a small business in electronic design since many years. Have made electronics for all kinds of stuff, including for the Swedish air-force.

I will make sure that this hardware will also work with SD.

\Mikael


Hello again Tim,

Now my product is finished and available.
I can send you a free sample if you give me your snail mail address.

More info in the other thread.

\Mikael
http://www.utronix.se/Aviation
Mikael Markow
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Tim Dawson - 8/8/2024 9:18:20 AM
The next release is nearly out, so the testing phase is pretty much over. You're welcome to try the beta though, at our beta page.

Tim,
I found this thread when googling for information of Bluetooth to aviation radio apps and hardware, since I just started a project making hardware and an app for this. (I use SD since 5 years though).

This project was inspired by the f.u.n.k.e. app with hardware suggestions.
It is ok but sort of limited and outdated. So my plan is to make modern hardware and a better app for transferring frequencies to aviation radios.

I run a small business in electronic design since many years. Have made electronics for all kinds of stuff, including for the Swedish air-force.

I will make sure that this hardware will also work with SD.

\Mikael
Tim Dawson
Tim Dawson
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The next release is nearly out, so the testing phase is pretty much over. You're welcome to try the beta though, at our beta page.


Mikael Markow
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Tim Dawson - 6/24/2024 11:24:20 AM
We are hoping to support this in our next major release. Is anyone on this thread interested in testing?


Yes, I am interested in testing it.
\Mikael

Tim Dawson
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We are hoping to support this in our next major release. Is anyone on this thread interested in testing?
vovo
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Today, I installed XCSoar on my tablet, because I think controlling of the radio via tablet is very convinient.
XCSoar has an implemention for this feature.
I like to use skydemon for when flying with a motor, but Xcsoar is capable of controlling the radio. So, currently I am unsure what to use.

If this feature was more known, I am sure everyone will like it.
The biggest issue is the complicated installation and configuration of the RS232 connection.
You will need a BT -> RS232 Adapter or something like that.


Tim Dawson
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Obviously it's doable, but I don't think the demand is high enough to warrant us looking at this in the near future, sorry.
swordmap
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Tim Dawson - 1/4/2019 4:34:47 PM
swordmap, what device are you connected to, with your tablet, which supports that interface, and which software package are you using which also supports it?

Currently a Garmin Aera. I would like to get rid of it and use an iPad, but Aera ability to feed the radio with the frequencies without the need to insert them on the radio, kept me away from change (or better, upgrade!). Radio was a Microair, now a Trig.

The connection to the radio (which is always a wired RS-232) could be done via a serial converter (or, even better, a Bluetooth-to-serial device). Being basically a one way connection (SD to radio) implementation should not be an unsormountable problem.

Hope this helps!

Sword


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