Garage

The garage project is a control and monitoring service for garages. This module is the garage controller itself and performs the open/close function.

Server Backend https://github.com/jpatillo/garage-api
Android Project https://github.com/jpatillo/garage-android

This project has been migrated from C++ to C.

Current capabilities include:

• receive requests to open/close door (single door)
• post temperature and humidity on an interval
• receive requests to post temperature and humidity

TODO

• tls

• change hard-coded device id

  • DS18B20 - connect to the board to provide a unique id

• ability for user to change telemetry reporting interval

• Once the hardware is somewhere near being finalized, a qr-code with the device id can be put on the housing. This will allow the app to scan it and add it.

• Set the device hosts/hostname to the device id for easy network identification

• Need a way to do user setup on the device to connect it to wifi.

  • Start the device as an AP with a webpage that the user can log into and change settings via wifi?

HARDWARE

• Pi Zero-W (Raspbian Stretch)
• DHT11 Temperature and Humidity sensor
• 2-Channel relay

BUILD

• Build and install with $ ./build.sh
• Test with $ ./testrun.sh

Directories

• /install - Files used to install and run the application.
• /build - Files created during the build process
• /headers - Header files (.h)
• /source - Source files (.c)

Library Code

Config file code from https://github.com/benhoyt/inih. Consists of ini.h and ini.c

MQTT

The mosquitto broker and client libraries are being used in the project. Clients spawn a new thread (handled by the library) to handle requests.

Subscribes to:

• garage/clientId/command/temperature
• garage/clientId/command/humidity
• garage/clientId/command/door

Publishes to:

• garage/clientId/status
• garage/clientId/telemetry