Model Boat Mayhem

Please login or register.

Login with username, password and session length.
Pages: [1]   Go Down

Author Topic: Universal 16 channel Multiswitch for 2.4 GHz  (Read 2799 times)

Time Bandit

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 175
  • Model Boat Mayhem is Great!
  • Location: Deizisau, Germany
Universal 16 channel Multiswitch for 2.4 GHz
« on: September 02, 2014, 09:04:26 pm »

Hey everyone,

I was disappointed that I could not use the classic multiswitch systems in my Spektrum Dx6i like on my Futaba FC16.
Most of those radios donīt have a sync signal and no ppm signal, so itīs impossible to use the systems.

As I mentioned when I joined this forum, I was developing a universal usable Multiswitch system which can be used in any radio.
Well the good news is, it is finished and working perfectly with 2 radioīs I already converted.
I gave away the rest of my PCBīs to other modellers to make their own tests and gain some more experience.
In the end I will upload everything (PCB layouts, hex-files for the mikrocontrollers, building manual...) on my homepage to make it accesible for everyone.

Unfortunately until now, everything is in german, but maybe (if the interest rate is high enough) I find time to translate everything, especially the building manual.
Maybe I also find a native speaker here, who is willing to correct my english.

Here a just a few "technical" data for the system I called "UNISWITCH16":
- Needs 1 proportional channel on the radio and 8 toggle switches (on-off-on) in the Tx
- 16 switching outputs (but only 8 can be switched on at the same time)
- Works with every Tx that uses pots and internal voltages between 2.8 and 5.5V no matter how the radio transmission is done
- The data are transmitted in a serial way. To switch 1 channel it needs around 220ms, to switch all channels around 1.8s.
- The switch position of all switches is transmitted in a cycle, so wrong reactions are selfadjusting after 1 cycle
- failsave (everything is switched off if the decoder getīs wrong signals)
- right now the decoder supports switching of currents of a maximum of 500mA, higher currentīs need a relais after the decoder


Iīm open to any suggestions regarding making this thing better  :}

To give you an idea about the outcome a few pictures of the radios I converted and a short video from a test. (I mainly tested the failsave here, donīt wonder about the chaotic switching of the LEDīs, they are wired in a random way)

https://www.youtube.com/watch?v=-wom1-WhLWA&list=UUYwYhF1NhZcyiYrFIfXrdxw
Logged
regards

Tobias

Time Bandit

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 175
  • Model Boat Mayhem is Great!
  • Location: Deizisau, Germany
Re: Universal 16 channel Multiswitch for 2.4 GHz
« Reply #1 on: September 03, 2014, 06:39:16 pm »

After 2 weeks of writing the manual, I still had no motivation for computer work after quitting time. :D
So I used the evening to solder some better test PCB with SMD LED.
I should have used bigger resistors, the "superbright" LED are actually really super bright, it hurts the eyes while looking directly into the light.  >>:-(

I made another quick video from testing the multiswitch with the new PCBīs.
https://www.youtube.com/watch?v=dU_Uid_-PrM&index=1&list=UUYwYhF1NhZcyiYrFIfXrdxw

The link where to download the (german) files to create the multiswitch by yourselves will follow until I find motivation to update and move my homepage.
Logged
regards

Tobias

dpbarry

  • If it ain't broke, break it and curse fixing it!
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 462
  • Location: Newcastle, Co Down
    • Newcastle Lifeboat Station
Re: Universal 16 channel Multiswitch for 2.4 GHz
« Reply #2 on: September 03, 2014, 08:04:46 pm »

Sound interesting.  :-))


Looking forward to it all.



Declan
Logged
Pages: [1]   Go Up
 

Page created in 0.39 seconds with 18 queries.