Raspberry Pi Zero-based Etekcity 433 MHz wireless outlet control. Repo contains control code and PCB designs.
- On/off control of Etekcity 433 MHz outlets
- Configurable via a single JSON file
- Ability to group switches into functional groups (e.g., "living room lights")
- Integration with Amazon Echo voice control
- RESTful API exposes outlet control
- Lightweight mobile frontend for manual control
- [C] wiringPi
- [Python] Cython [optional]
- [Python] gevent
- [Python] rpi.GPIO
The latest Rasbian image should include several of the dependencies, including
RPi-GPIO and wiringPi. The wifi on the Pi zero daughterboard is provided
by an ESP-12F that the Broadcom chip talks to over an SDIO interface. Here
are instructions for updating the device tree & building the module to
support the ESP-12F: https://oshlab.com/esp8266-raspberry-pi-gpio-wifi/
After following the above instructions just set up wifi as usual by editing
/etc/network/interfaces and /etc/wpa_supplicant/wpa_supplicant.conf.
Next install the remaining python dependencies. I would recommend using
apt-get rather than pip (to avoid compile times) if you don't mind
installing in your system site packages directory.
Finally:
sudo python install.py
(admin privileges necessary to install systemd service)
pi433 is tested on Raspian under the system Python (2.7.7) / in a
virtual env. pi433 is not installed into the Python site packages
directory, but rather is copied into ~/.pi433. The install script copies
the main module directory along with the cli into ~/.pi433 and creates /
configures the systemd service necessary to run pi433 at startup.
The repo contains a pre-built version of the Cython wrapper for the rc-switch
library, so unless you make modifications you shouldn't need Cython. (although
if you do need it, make sure you install via sudo apt-get install cython
to avoid the lonnnngg build time you'll experience through pip).
The included config.json file is also copies into ~/.pi433 and contains
the specifications for the RF outlets / groups that you want to control.
- Include RF sniffing interface
- Implement config button functionality
- Better antenna for TX
All code is released under the MIT license with the exception of:
-
Unmodified source code from rc-switch is LGPL v2.1:
pi433/RCSwitch.cpp pi433/RCSwitch.h
Inspired by (and derived from [see code comments]):