Projects:Rad1o-controlled

Description	I want to control some Hardware via rad1o.
Has website	https://rad1o.badge.events.ccc.de
Persons working on	Hax404, Igor
Self-organized sessions	Hacking the Z-Wave protocol
Tags	rad1o, Hardware, Software
Located at village	Village:Chaos West
Other projects... Hacking the Freedom of Information Act Fairy Dust FM Derail the train Physical Browsergame FAUST CTF ... further results

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The target

I want to control some village-light or other 230V-Thingies via rad1o. So anybody can send signals with the rad1o to my rad1o to Switch some cool Things on or off.

Participation

You want to participate? Feel free to edit this page! Lets do discussions right here in wiki!

The Plan

We can control external devices via (at least) two interfaces. Wo can use a GPIO or I2C. I prefere to use I2C because I want to connect other stuff via this interfaces in an other project (RTC, GPS). So I want so get a feeling for I2C at the rad1o.

If I cant get it to work, there are GPIOs as fallback. GPIOs are good enough to trigger a relais, but it's not so cool for me!

Prefered way

 rad1o#1 --air--> rad1o#2 --I2C--> MCP23017 -> Sainsmart-Relais-Board --Schuko--> 230V Foo (light or something)

Plan B

 rad1o#1 --air--> rad1o#2 --GPIO--> Levelshifter -> Sainsmart-Relais-Board --Schuko--> 230V-Foo (light or something)

What to control?

What	Where	How much cannels?
LED-Fackel http://hasi.it/images/slider/slide11.jpg	Chaos-West/nomis	1
Remote controlled train (Project page)	e7p and Mati from Chaos-West/Das Labor	multiple - speed, direction, lights

What I can do

I can do the hardware-stuff. I'll soldering the Pins to my rad1o and can connect the Relais/Schuko to them. I'll bring all necessary hardware-stuff.

Where I need help

I'll try to do the coding for controlling i2c|gpio. I'm a good java|python-coder, but I'm not so good in C. But I'll try it and do a lot of try&error. If anybody want to help, you are welcome!

I've never had anything to do with creating a radio-protocoll. If you know how to design a pretty simple protocol to send/receive simple ON-OFF signals, please help me!

New on I2C

If you are new to I2C and want a quick introduction: Listen to Session:128 GPIOs on my RasPI

TODOs

modificate rad1o-firmware

You can take a look to the "official" firmware of rad1o here: https://github.com/rad1o/f1rmware I want to fork it right now, because I hope there are cool fatures coming soon to the original firmware. So i'll fork as late as possible.

1. ...send commands
   • Need Help to code it!
   • Simple Code-Example can by found here: https://github.com/mossmann/hackrf/blob/master/firmware/sgpio-rx/sgpio-rx.c
2. ...receive commands
   • Need Help to code it!
   • Simple Code-Example can by found here: https://github.com/mossmann/hackrf/blob/master/firmware/sgpio-rx/sgpio-rx.c
3. ...Trigger i2c|gpio
   • User:Igor trys, help welcome!
   • there is a basic I2C-Support in the already-included lib libopencm3
   • https://github.com/rad1o/libopencm3/blob/master/include/libopencm3/lpc43xx/i2c.h

Hardware-stuff

Soldering rad1o

soldering i2c|gpio-pinns to rad1o#2

• User:Igor does
• If you want do it although, you need something like:
  1. http://www.conrad.de/ce/de/product/393505/Doppelreihige-Stiftleiste-RM-254-gerade-Pole-2-x-10-10120545-BKL-Electronic-Inhalt-1-St?ref=searchDetail

connecting hardware

connect Hardware to i2c|gpio

• User:Igor does
• If you want do it although, you something like this:
  1. MCP23017 or another I2C-Portexpander
  2. Relais: http://www.amazon.de/SainSmart-Kan%C3%A4le-RelaisModul-Arduino-Module/dp/B005WR753Q/ref=sr_1_sc_1?ie=UTF8&qid=1437035230&sr=8-1-spell&keywords=sainsmart+relaius
  3. Power-Source: The relais-board need 12V - I think
  4. Wire-stuff, breadboard, ...

have fun!

• User:Igor does!