WiringPi-SelectPlus

Send the QH-832AC doorbell signal from a Raspberry Pi.

Introduction

This script is based on the blog post "QH-832AC Door-bell modding".

Hardware

You'll need:

• QH-832AC Doorbell from Quhwa.
• 433 MHz RF transmitter, like this one

Installation

• Install WiringPi
  • sudo apt-get install git-core
  • sudo apt-get update
  • sudo apt-get upgrade
  • git clone git://git.drogon.net/wiringPi
  • cd wiringPi
  • git pull origin
  • cd wiringPi
  • ./build
• Install WiringPi-SelectPlus doorbell:
  • git clone git://github.com/MPParsley/WiringPi-SelectPlus
  • cd WiringPi-SelectPlus
  • sudo g++ -o Ring ring.cpp -I/usr/local/include -L/usr/local/lib -lwiringPi

Configuration

You can change the settings in the "config.ini" file:

• gpio: WiringPi Pin number (See http://wiringpi.com/pins/).
• timing: Pause in between rings (in microseconds).
• black, white: # Bell codes for respectively black and white doorbell.

Testing

You can check if wiringPi’s installation succeeded by running the gpio command:

• gpio -v
• gpio readall

Run the Ring binary to test your doorbell setup using the "black" or "white" commandline argument:

• ./Ring black # To ring the black doorbell once.
• ./Ring white # To ring the white doorbell once.
• ./Ring black black white # To ring the black doorbell twice and the white doorbell once.

Note: make sure to ring once immediately after plugging in the doorbell to "pair" the device.