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Old May 09, 2010, 08:24 AM
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2.4ghz transmitter based on STM8S + corana DIY 2.4 ghz + Futaba skysport case

Hi all,
here is my nearly finished project of 2.4ghz transmitter.
http://sites.google.com/site/stm8sdi...-2-4ghz-module

It is based on the new cheap µcontroller board STM8S discovery for ST (about 10$ with USB debugger included) and the Corona DIY 2.4ghz module.
http://www.st.com/mcu/contentid-130-...DISCOVERY.html

Here the features:
- 7 channels (8 possible but I need only 7 channels for my electric glider (4 servos by wing, brusless controller,elevator and rudder )
- 4 memories (can be selected at startup with master/slave switch with beep selection)
- 1 switch (2 positions) for butterfly
- 1 switch (2 positions) for Throttle Cut
- 1 switch (3 positions) for 3 flight conditions
- 16 mixers
- 9 points curbs for the 4 input sticks



The configuration is made with PC with python script
http://sites.google.com/site/stm8sdi.../configuration


I will post source code for the transmitter and the tools for configuration in the following days



Regards
Xavier
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Old May 09, 2010, 02:39 PM
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Hi
I have uploaded on my web site the python script to generate the model configuration for the transmitter. The generated file has to be uploaded to the STM8S flash memory with ST tools.
Python v2.6 must be installed.
Not compatible with python 3.x


http://sites.google.com/site/stm8sdi...edirects=0&d=1

Regards
Xavier
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Old May 12, 2010, 05:01 AM
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I am going to follow this, I just ordered a STM8S. Let's see how it compares to Arduino.
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Old Mar 26, 2012, 12:13 PM
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Question

Hello from France (ans sorry for my english !)
Great job !

I wonder how to reprogram my poor skyartec sky705 witch have a stm8s too.

The usb interface is a ch372 ans i don't know if i can use it for reprogrammation.
If not, where could i find a "st link" ?

Here's a photo of the board

Thank you



I hope it is not to late !
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Old Mar 29, 2012, 06:50 AM
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Originally Posted by CrashingDutchman View Post
I am going to follow this, I just ordered a STM8S. Let's see how it compares to Arduino.
Blows it away, in terms of on-chip peripherals, and due to being able to debug/step through code while it runs. including watching memory/variables, etc. Why would anyone start a new project in 2012 with arduino is unknown
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Old Aug 07, 2012, 06:38 PM
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News (in french)

http://www.modelisme.com/forum/aero-...ce-maison.html
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Old Aug 11, 2012, 02:25 AM
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Can you post the pictures of your transmitter also here
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Old Aug 12, 2012, 11:40 AM
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Ok, the picture are here :
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Old Aug 12, 2012, 11:43 AM
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Google code :

http://code.google.com/p/bracame-rc-radio/

I can help interested people.
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Old Aug 12, 2012, 01:44 PM
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Do you plan on adding some additional functionallity? I have some ideas
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Old Aug 12, 2012, 02:50 PM
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Originally Posted by msev View Post
Do you plan on adding some additional functionallity? I have some ideas
Yes ! Program memory is not full ... (32 k)
Do you know stm8 ?
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Old Aug 12, 2012, 03:04 PM
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No unfortunately I can't code, its not my field of expertise..I'm studying pharmacy...So I can't help in this area.

Well one idea would be to interface a Nunchuck via I2C, the accelerometer and the small joystick and buttons could be used for example for operating a pan-tilt servo mounted camera on a plane.

Another more exotic idea would be to interface it to a speaker+sd card shield so the transmitter could talk to you when you flick a switch it would say, "switch in high position" for example (this is already implemented in er9x project for example).. Its useful for fpv..

Personally I would need more 3-way switches added..

I have transmitting modules from turnigy 9x, it would work right? Can ppm stream be changed in code from negative to positive if needed?

You are using stm8discovery right?
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Last edited by msev; Aug 12, 2012 at 03:17 PM.
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Old Aug 12, 2012, 03:15 PM
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Yes stm8discovery ,
I uses all I2C port of my stm but i plan to use a motion plus in analogique mode (later)
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Old Aug 12, 2012, 03:20 PM
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A gyro? What do you plan to do with it?
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Old Aug 14, 2012, 03:54 AM
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motion plus can drive all 3 axis

http://diydrones.com/profiles/blogs/...flights-with-a

It is not my priority for the moment, will do that later ....
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