Hello

I found that lot of people discovered this new feature of the wr703n flashed under openwrt : It is able to stream an USB webcam (soon a Gopro using an easycap) and also to make a bridge between a serial interface (USB according to CDC driver or 3.3V TTL).

see : http://www.diydrones.com/profiles/blogs/hacking-a-rc-helicopter-for-wifi-router-control

Here is the tutorial (3 parts + 1 part unbricking ;) ) on Openpilot Forum : http://forums.openpilot.org/blog/52-fertitos-blog/

So I started a TUTORIAL to help those that would like to add this feature on theyre drone and start developping new sensors :

I'ld like to work on a laser line avoidance system using the webcam :

If you have question... ;)

Hello,

here is the last project I'm working on. I'm trying to build myself my own RC transmitter with my android phone (geeksphone zero) as configurator.

I first try to get a working ppm out of my custom IOIO board, but it was not working very well :

http://vimeo.com/34435171

So I decided to add another chip (pic18f46j50) to my IOIO to generate a nice PPM signal.

After that I used nearly the same board to catch Accelerometer, gyroscope, barometric pressure and temperature (ms5607) and GPS and to send it in the Frsky receiver, and plugged the frsky transmitter to the IOIO board.

So I'm able to retrieve the data sent according to the frsky protocol and data from my custom hub and display it on a custom android app :

Now I'm planing on remaking a complete pcb including the IOIO chip and my ppm chip, potentiometer, switchs, ...

and a prototype of my new radio...

Hello,

Some time ago I fell on this :

http://www.diydrones.com/forum/topics/printed-wing-concept

that was the spark that ignite everything in my head.

I'm doing kitesurf and kitefoil and we can't reach excessive speed (over 24 kots) due to fast stabilisation problem.

In the water the small pressure differential can have enormous effect, which make you fall every time.

So I first started doing a fast IMU for my wing and now I'm trying to print it ;)

we do not have any problem of weight, the wing is lifting lot for a small surface.

Here is the pictures of my firts printing attempts ... on a mendel prusa ;)

will try to talk later on the IMU ;)

Hello,

here is the last news of my development.

I received my small 5dof imu, some new sample of the last 24bits integrated pressure sensor from intersema MS5706, I plug everything on my RC receiver and telemetry transmitter and look at what will work... Surprisingly .. everything...

I check the range out of my telemetry board with just a crap antenna, and it is far from being good, less than 100m...

waiting for other antenna to make other check, I must have mistaken something...

beside that I bought one of those ultra-cheap android tablet and started to look what can be done and how...

there is only a dirty wifi module, no bluetooth, a crapy 30pin ipod style dongle that give 2 usb port, 1 rs232 plugged to u-boot and a rj45.

So I plugged one of my board on it and try some things...

I First had some bad luck, the software is fully buggy, the tablet is ultra slow, impossible to root it so it is impossible to access the serial port (for writting), but I succesfully was able to read the serial data that come out of my board via USB CDC bridge.

I'm not good either with java, and the emulator works worth than the real tablet... but I did some stuff that seems to work ;)

... to be continued... (I'm waiting for stuffs...)

Hello,

I'm still working on my Interception/Injection board for my Spektrum Dx6i, here is the news :

• the interception is working like a charm, I can monitor all of the 6 channels on the groundstation (the 9 gauge on the left), It can be plugged to usb or over bluetooth.
• the flying board is (for now) equipped with GPS an a 3 axis accelerometer (gyro is on the way)
• both boards have a rfm22 (the same used by OpenLrs), for now only the flying board is transmitting the GPS and the Acc data.
• First try developping a quick GroundStation as demonstrator, with horizon, altimeter and speed, Acc Data and even a google map ;) The GS is working on Win32 and Windows mobile, I'm planing on porting it on Android when I'll have an Android

dx6i interception/injection board from BARTHELEMY Roman on Vimeo.

And all of this is sold ... 50$...

Pretty cool, except that I had to wait 3 month to have one...

Maybe I'm not the first to do this, but I added a variometer function to the altimeter module and to the RF module to be able to send the vario Data to the computer ;)

I'll try to make a video of this ;)

And did my first try with non-autonomous flight :

;)