- Posts: 35
Deviation + Bluetooth + Android
04 May 2013 12:09 - 04 May 2013 14:20 #9530
by kenkenlau
Replied by kenkenlau on topic Deviation + Bluetooth + Android
Background:
I feel that the Deviation is a bit more heli-favoured.I play both Fixed wing and heli, and I really think the telemetry (especially finding lost plane in the forest via GPS) is quite important for fixed wings.
For Spektrum TM1000, the iphone user have STi (but I am android fans). So I started to think of the Bluetooth connection with android.
Aim:
I hope finally the apps can:
- see all telemetry data
- take log, save in phone SD
- edit the model, mixer, curve, icon, and send it back to TX
Hardware:
1. A bluetooth module with UART. I got mine from my Guru-Z Boron car. It is not expensive on ebay and online store (should be less than $5)
--Config the module to 115200 8N1 and set the name+PIN.
--connect it to the Trainer port as photo attached. (I choose to connect it by soldering and disconnect the trainer, the trainer port have some wiring in it which may cause problem)
2. an Android phone or PAD which support bluetooth 2.0
Sofware:
1. Deviation
--need to compile with TYPE=dev to enable printf
--I added 2 printf lines only in telemetry.c to send out UART LatLong. you may place it in other place as you like.
2. Apps
Sorry I am neither a C++ guy nor a java guy. So the app is developed in AI.
appinventor.mit.edu/
Source code is attached. no need to unzip, just upload the zip file and you will see the project.
Protocol
There is not a protocol at all, but i setup the TX to sent "(Lat),(Long)G"
ie "G" is used as an character for parsing.
Know issue:
1. Range of Bluetooth -- I find that the BT module have 5-10m range when it is used in other application. But when it is put inside the TX, the range become around 1m for connection, less than 2m to transmit data. This may due the both of them use 2.4G and have some interference. (and the BT module is in very small power)
2. Green Arrow is not shown in Google Maps APPS in some device. If so, choose a browser to open it. Then you can see you current location and the plane location.
More to go?
Don't know if anyone find this interesting. give me some comment
I feel that the Deviation is a bit more heli-favoured.I play both Fixed wing and heli, and I really think the telemetry (especially finding lost plane in the forest via GPS) is quite important for fixed wings.
For Spektrum TM1000, the iphone user have STi (but I am android fans). So I started to think of the Bluetooth connection with android.
Aim:
I hope finally the apps can:
- see all telemetry data
- take log, save in phone SD
- edit the model, mixer, curve, icon, and send it back to TX
Hardware:
1. A bluetooth module with UART. I got mine from my Guru-Z Boron car. It is not expensive on ebay and online store (should be less than $5)
--Config the module to 115200 8N1 and set the name+PIN.
--connect it to the Trainer port as photo attached. (I choose to connect it by soldering and disconnect the trainer, the trainer port have some wiring in it which may cause problem)
2. an Android phone or PAD which support bluetooth 2.0
Sofware:
1. Deviation
--need to compile with TYPE=dev to enable printf
--I added 2 printf lines only in telemetry.c to send out UART LatLong. you may place it in other place as you like.
case TELEM_GPS_LONG:
h = value / 1000 / 60 / 60;
m = (value - h * 1000 * 60 * 60) / 1000 / 60;
s = (value - h * 1000 * 60 * 60 - m * 1000 * 60) / 1000;
ss = value % 1000;
sprintf(str, "%03d %02d %02d.%03d", h, m, s, ss);
printf("%03d %02d %02d.%03dG", h, m, s, ss);
break;
case TELEM_GPS_LAT:
h = value / 1000 / 60 / 60;
m = (value - h * 1000 * 60 * 60) / 1000 / 60;
s = (value - h * 1000 * 60 * 60 - m * 1000 * 60) / 1000;
ss = value % 1000;
sprintf(str, "%03d %02d %02d.%03d", h, m, s, ss);
printf("%03d %02d %02d.%03d,", h, m, s, ss);
break;2. Apps
Sorry I am neither a C++ guy nor a java guy. So the app is developed in AI.
appinventor.mit.edu/
Source code is attached. no need to unzip, just upload the zip file and you will see the project.
Protocol
There is not a protocol at all, but i setup the TX to sent "(Lat),(Long)G"
ie "G" is used as an character for parsing.
Know issue:
1. Range of Bluetooth -- I find that the BT module have 5-10m range when it is used in other application. But when it is put inside the TX, the range become around 1m for connection, less than 2m to transmit data. This may due the both of them use 2.4G and have some interference. (and the BT module is in very small power)
2. Green Arrow is not shown in Google Maps APPS in some device. If so, choose a browser to open it. Then you can see you current location and the plane location.
More to go?
Don't know if anyone find this interesting. give me some comment
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04 May 2013 13:49 - 04 May 2013 13:50 #9536
by PhracturedBlue
Replied by PhracturedBlue on topic Deviation + Bluetooth + Android
If you make a module with the STM32 + CYRF + Bluetooth, then you still need to hook up all the inputs which is generally quite a lot of work. If you go there, why not include a module with a screen already available (this as our plan to retro fit the Devo7 originally.
One thing I had not considered before was to build a module that uses PPM to get the input from the transmitter. If you do that, you culd use virtually any radio as a Deviation Radio. Even my ancient 72MHz Airtronics 6CH. That would be something to behold
One thing I had not considered before was to build a module that uses PPM to get the input from the transmitter. If you do that, you culd use virtually any radio as a Deviation Radio. Even my ancient 72MHz Airtronics 6CH. That would be something to behold
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04 May 2013 14:06 #9540
by kenkenlau
Replied by kenkenlau on topic Deviation + Bluetooth + Android
I see.....What I am thinking to hook up is just 4 VRs and maybe 2 switches of some of my old E-Sky TX 
And besides this, I actually want to remake my Devo8S PCB
So that I can install 1 or 2 module + BT on board.
Also, I really will need a jogdial button. (I was migrating from JR9303 -> DX8 -> devo)
Also also, I wish to make the unused pin of STM MCU available with a solder point!
Also also also, if, you are planning to support SD card, I wish to add that too. but it will need a 144pin version of STM.....
Base on the above, I have strong motivation to build a new PCB
And besides this, I actually want to remake my Devo8S PCB
So that I can install 1 or 2 module + BT on board.
Also, I really will need a jogdial button. (I was migrating from JR9303 -> DX8 -> devo)
Also also, I wish to make the unused pin of STM MCU available with a solder point!
Also also also, if, you are planning to support SD card, I wish to add that too. but it will need a 144pin version of STM.....
Base on the above, I have strong motivation to build a new PCB
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01 Aug 2013 13:31 #12693
by Iadesdragon
Replied by Iadesdragon on topic Deviation + Bluetooth + Android
@kenkenlau
would you be willing to share your board outline?
I´m trying to hijack the 8S as well bu there`s a little bit more on my mind that adding a vew pins and bluetooth.
I also am looking for more info on the Display PCB....
would you be willing to share your board outline?
I´m trying to hijack the 8S as well bu there`s a little bit more on my mind that adding a vew pins and bluetooth
.I also am looking for more info on the Display PCB....
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