Autopilot + COM freq. over BT to RS232

Important: These forums are for discussions between SkyDemon users. They are not routinely monitored by SkyDemon staff so any urgent issues should be sent directly to our Customer Support.

Autopilot + COM freq. over BT to RS232

Author	Message
Tim Dawson	Tim Dawson posted 9/25/2024 10:23:55 AM Post Details Share Post
Group: Forum Members Posts: 8K, Visits: 9K	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.
	Reply Like 4
Kilo Lima	K Kilo Lima posted 9/25/2024 7:44:55 PM Post Details Share Post
K Group: Forum Members Posts: 12, Visits: 0	+x Tim Dawson - 9/25/2024 10:23:55 AM 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. 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.
	Reply Like 4
Tim Dawson	Tim Dawson posted 9/26/2024 9:51:37 AM Post Details Share Post
Group: Forum Members Posts: 8K, Visits: 9K	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.
	Reply Like 4
Kilo Lima	K Kilo Lima posted 9/27/2024 10:12:51 PM Post Details Share Post
K Group: Forum Members Posts: 12, Visits: 0	+x Tim Dawson - 9/26/2024 9:51:37 AM 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. Thank you Tim.
	Reply Like 3
AlexLFDP	A AlexLFDP posted 10/3/2024 7:02:09 AM Post Details Share Post
A Group: Forum Members Posts: 1, Visits: 0	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 Edited 10/3/2024 7:59:16 AM by AlexLFDP
	Reply Like 3
tobi	t tobi posted 10/11/2024 5:18:54 AM Post Details Share Post
t Group: Forum Members Posts: 6, Visits: 3	+x moefly - 9/22/2024 4:55:46 PM 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! In case anyone is interested in the 3d model and a more detailed info on connection and parts I used, you can find all of that here on printables: https://www.printables.com/model/1015550-funke-atr833-ble-rs232-case 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
	Reply Like 3
norland	n norland posted 10/12/2024 2:33:33 PM Post Details Share Post
n Group: Forum Members Posts: 5, Visits: 0	+x tobi - 10/11/2024 5:18:54 AM +x moefly - 9/22/2024 4:55:46 PM 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! In case anyone is interested in the 3d model and a more detailed info on connection and parts I used, you can find all of that here on printables: https://www.printables.com/model/1015550-funke-atr833-ble-rs232-case 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 The same module is on Amazon uk for £12, it says Vcc is 3.6V to 6.0V.
	Reply Like 3
tobi	t tobi posted 10/13/2024 9:39:28 AM Post Details Share Post
t Group: Forum Members Posts: 6, Visits: 3	+x norland - 10/12/2024 2:33:33 PM +x tobi - 10/11/2024 5:18:54 AM +x moefly - 9/22/2024 4:55:46 PM 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! In case anyone is interested in the 3d model and a more detailed info on connection and parts I used, you can find all of that here on printables: https://www.printables.com/model/1015550-funke-atr833-ble-rs232-case 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 The same module is on Amazon uk for £12, it says Vcc is 3.6V to 6.0V. You're right. Thanks for the response. Even on DSD Tech homepage you'll find: Work voltage（VCC）: 3.6V to 6V TTL logic level (TX, RX): 3.3V But on the linked datasheet you'll read: Power: +1.9~3.7 VDC 50mA I'll just try it. Thanks, Tobi TTL logic level (TX, RX): 3.3V
	Reply Like 3
zooyork	z zooyork posted 10/13/2024 7:33:14 PM Post Details Share Post
z Group: Forum Members Posts: 2, Visits: 0	Hello, first off, thank you for including such a nice feature! Now to my problem ... Since several people reported that the DSD TECH bluetooth adapters work also fine, I ordered them as well. And in my opinion I did almost everything to get it working, but is is not. My setup: DSD Tech HM-10 Trig TY 96 (to test the feature in the aircraft) Trig TY 91 (to test the feature at the bench) What is done and working: - HM-10 connect succesfully to skydemon - wiring done correctly to serial inferface of the radios - I also tested the setup using my computer and a serial monitor (e.g. for clicking on the Bournemouth Approach frequency 119,480 in Skydemon I receive the following message $PGRMC01GC014< on my serial monitor) What is not working: When I do this with my Trig radios. What I think what could be the problem: The DSD Tech adapters can not handle a power supply of 5V from a different source than ground and rx signals are coming from. My usb-serial converter which I use on my computer provides vcc, ground, rx, tx from one source which is my computer. For the Trig radios thats a different story since they do not offer 5V output. So you have to get the 5V from another souce in your aircraft and that does not work. Maybe I'm completley wrong.. For the Funke ATR833 radio this problem does not exsist, since it offers a 5V output on pin 24 and therefore all signals that go to the bluetooth adapter come from one single source which is the ATR833. So far im guessing that only the IRXON adapter works with Trig radios, since it has a internal battery and can accept powering from external source. My questions would be: - Did someone succesfully connected a DSD TECH bluetooth adapter with a Trig radio? - Did someone sucessfully connected a DSD TECH bluetooth adapter that is powered externally to any of the other features Skydemon offers using this functionality (auto pilot commands, traffic / gps information)? - Is $PGRMC01GC014< the right received message to Bournemouth Approach frequency of 119,480? Any feedback is much appreciated. Thank you! Rob Edited 10/13/2024 7:44:31 PM by zooyork
	Reply Like 3
zooyork	z zooyork posted 10/14/2024 9:19:55 AM Post Details Share Post
z Group: Forum Members Posts: 2, Visits: 0	Forget my last post. The problem has been identified. Thanks to user Michael Hoffmann for the clarification. If I had read the thread carefully I would have come across this post from user meofly: "The HM-18 is outputting TTL serial, hence I added a MAX3232 converter to provide the proper RS232 levels the radio expects." This is also true for HM-10 and probably most of the adapters.
	Reply Like 3