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tobi
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Group: Forum Members
Posts: 6,
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+xAll,
I was very excited when I read about the feature in the Skydemon release note, went right into ordering parts and figured I share the experience here.
Top 1 priority for me was to get the radio (f.u.n.k.e. ATR833-II) connected. So I designed a 3d case that perfectly fits on top of the original Sub-D connector housing and uses the existing screw holes (only needed slightly longer screws). Once mounted, it sits below the connector at the back of the radio and doesn't block anything else / basically uses the same space.
I decided to use a HM-18 BLE to serial module. It is very power efficient and therefore I could easily use the 5V the radio provides on the Sub-D connector. The HM-18 is outputting TTL serial, hence I added a MAX3232 converter to provide the proper RS232 levels the radio expects.
Put everything together and it worked right away. For me it's almost a killer feature in Skydemon as it makes my life so much more simple during flight.
A big thx to Tim and his team for adding this feature!
Hi moefly,
according to HM-18 datasheet the power supply voltage is from 1.9V to 3.7V. The ATR833 has 5V output. Do you use a voltage converter or do you just run out of specs?
Regards, Tobi
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AlexLFDP
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Group: Forum Members
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Hi all
If anybody is connecting the BT receiver to the TruTrak 385 autopilot, I would be interested to hear. It's currently getting GPS feed from an old and useless AvMap Geo Pilot II+ that I would like to replace It seems that it may need engineer from avionics specialist but I would like to do it myself (flying non certified) because from what I see on Skydemon manual, it seems pretty simple. Pins connecting to Ground on both side, Rx Pin on autopilot connecting to Tx on BT receiver. On Irxon BT578, pin 5 is Gd and 3 is Tx, and it can't be rewired. So it probably means to create a RS232 cable if rewired is needed on autopilot RS232. It may be better anyway to avoid plugging the BT receiver directly to the avionics (thinking that it may be a pain if anything has to be done on the receiver if not easily accessible). Any recommandation on the type of wire/cable to be used if needed (shield?)
thanks
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Kilo Lima
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Group: Forum Members
Posts: 12,
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+xYou can connect a FLARM traffic receiver to SkyDemon via Bluetooth so that the traffic it receives is displayed in SkyDemon. That's the only relationship between traffic and Bluetooth. Thank you Tim.
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Tim Dawson
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Group: Forum Members
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You can connect a FLARM traffic receiver to SkyDemon via Bluetooth so that the traffic it receives is displayed in SkyDemon. That's the only relationship between traffic and Bluetooth.
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Kilo Lima
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Group: Forum Members
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+xI can't commit to a time schedule, sorry. I need to re-engineer part of the Bluetooth stack before it will be practical, and that could be weeks or months. Hi Tim,
What feature can we expect regarding the traffic? For example : To send the traffic received from Safesky in SkyDemon to a Dynon Skyview (with a Bluetooth module connected)?
Thanks.
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Tim Dawson
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Group: Forum Members
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I can't commit to a time schedule, sorry. I need to re-engineer part of the Bluetooth stack before it will be practical, and that could be weeks or months.
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vikino
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Group: Forum Members
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Hello Tim, have you got any time schedule about programming ability to send AP+COM and receive traffic via single BT-RS232? Just to know if i should wire second BT device or you can get it to work in near future?
Vitek
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Tim Dawson
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Group: Forum Members
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moefly
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Group: Forum Members
Posts: 10,
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All,
I was very excited when I read about the feature in the Skydemon release note, went right into ordering parts and figured I share the experience here.
Top 1 priority for me was to get the radio (f.u.n.k.e. ATR833-II) connected. So I designed a 3d case that perfectly fits on top of the original Sub-D connector housing and uses the existing screw holes (only needed slightly longer screws). Once mounted, it sits below the connector at the back of the radio and doesn't block anything else / basically uses the same space.
I decided to use a HM-18 BLE to serial module. It is very power efficient and therefore I could easily use the 5V the radio provides on the Sub-D connector. The HM-18 is outputting TTL serial, hence I added a MAX3232 converter to provide the proper RS232 levels the radio expects.
Put everything together and it worked right away. For me it's almost a killer feature in Skydemon as it makes my life so much more simple during flight.
A big thx to Tim and his team for adding this feature!
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jekroth
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Group: Forum Members
Posts: 18,
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+xWell...
I have tested theese BT-RS232 modules a lot by my self, it works great with Dynon EFIS-D100 + AP74 autopilot and Trig TY96 COM radio, also without any issue with KRT2 COM radio. You just need to "match" baudrate to 4800 or 9600bps, that should do in this case SkyDemon, afterwards it works like a charm, no drop outs with Samsung tablets or my phone Samsung S23 Ultra. And all another BT to RS232 work in the same way like this one, all are in the phone as bluetooth com port, all this seems to me much easier and more stable than 3rd party devices which are connected over wifi. Not talking about that you kill your internal data sim when connected to wifi of "ADAHRS" and so on...
This will just work perfectly.
Btw., with this, you can go to compleete system, because when you connect to this serial converter also Garrecht TRX1500 (for example), you can use SkyDemon as traffic display - by using GTX TIS protocol over that single BT-RS232 module. In the same way i have it with Garmin AERA 760, but planning a route is terrible on that device, but Garmin has built in RS232...
+xNo, not until there is a device with widespread uptake in the community that we can actually develop with. We can't just "support Bluetooth" without a known device to develop and test with. I have now flown a bit with both radio and autopilot connected to each blue tooth unit, and it works perfectly. My experience is that it is easy to accidentally press a new radio frequency if the air is bumpy, so I have chosen that they end up in standby mode, therefore a request for a button to switch standby/active in skydemon, also a numeric keyboard in the radio tab would be good. the auto pilot has everything I could wish for
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