A Raspberry Pi Remote Mains Switcher, to switch these
http://www.maplin.co.uk/remote-controlled-mains-sockets-5-pack-348217
with one of these
http://proto-pic.co.uk/434mhz-rf-link-transmitter/
using the awesome reverse engineering detailed here
Requires WiringPi-Python
git clone https://github.com/WiringPi/WiringPi-Python.git
cd WiringPi-Python/
git submodule update --init
sudo apt-get install python2.7-dev python-setuptools
sudo python setup.py install
You'll need something like this http://proto-pic.co.uk/434mhz-rf-link-transmitter/
Assuming that is the one you buy, the transmitter has 4 pins. Wire
| Tx Pin | Raspberry Pi Header Pin |
|---|---|
| Pin 1 GND | Pin 6 0V (Ground) |
| Pin 2 Data in | Pin 11 GPIO 0 |
| Pin 3 Vcc | Pin 2 5.0 VDC Power |
| Pin 4 ANT | 173mm antenna wire (not on the Pi!) |
If you've had to read this section, please see the disclaimer below.
Needs to be run as root -
sudo ./strogonanoff_sender.py --channel 1 --button 3 --gpio 0 on
where the GPIO pin number is 0 (the default) if wired as per the table above, or otherwise the big ones on this diagram
It works for me, but connecting stuff to your Raspberry Pi can destroy either end. If it does, no matter how negligent I've been, I'm sorry, but it's your problem.