Gpio Control Relay service

This program allows you to turn on/off a relay connected to a Raspberry Pi by a gpio port. To configure and communicate with the service and use the relays, it is necessary a client program. Here is a list of clients.

Requirements

• Raspberry Pi or compatible
• A Gnu/Linux system installed (LibreELEC OS recommended, if you want to install this in a different OS, please check the Gpio path in the notes)
  • Python 3.x
  • Systemd

Installation

Just download the ZIP, and run /install.sh as superuser:

su
bash install.sh
# or
sudo bash install.sh

This will create a daemon in the system that is listening for new connections on the port 10000.

Uninstall

cd /usr/lib/gcr-server
sudo bash uninstall.sh

Service commands

To start the service manually

sudo systemctl start gcr-server.service

To stop the service

sudo systemctl stop gcr-server.service

To restart the service

sudo systemctl restart gcr-server.service

Configuration

It is necessary a client to add relays and configure their gpio ports.

Other configurations

• Socket port
• Gpio path
• How to connect a relay to a Raspberry PI

Clients

GCR Android client (this is not a release version) More clients are incoming ;)

Notes

Socket port

Used by the socket for the communication with the app.
By default: 10000 You can change it from SOCKET_PORT in /service.py

GPIO path

It depends on the system, it has the LibreELEC path by default.
By default: /sys/class/gpio You can change it from GPIO_DIRECTORY_NAME in /lib/repository/gpio.py

Connect the relays

This is an example about how to connect a relay to a Raspberry Pi.

In this example the relay is connected on port Gpio 7. Now, from the client application, it is necessary to configure (only once, the first time), a relay connected on port 7.