QLock

Word clock powered by raspberrypi and python with mqtt support

Android Watch Face and Widget

The word clock is now available as a Wear OS Watch Face and as an Android widget. Check out the links above.

Highlights

• Multiple Transitions (simple, fade, matrix)
• MQTT support

Contents

• Description
• Highlights
• Install
• Usage
• Configuration
• Images
• Development
• Team
• License

Install

Run following command to install all dependencies

sudo apt-get install python3-numpy
pip install -r requirements.txt
pip install RPi.GPIO
pip install adafruit-ws2801

Usage

Configuration

to configure qlock modify the config.json in the root directory. The following illustrates all the available options with their respective default values.

{
  "environment": "prod",
  "tick_interval": 5,
  "color": [255, 255, 255],
  "transition": "fade",
  "mqtt": {
    "active": true,
    "host": "192.168.0.2",
    "port": 1883,
    "user": "",
    "password": "",
    "topic": "qlock"
  },
  "opt3001": {
    "active": true,
    "address": "0x44",
    "bus": 1,
    "max_brightness_percentage": 100,
    "min_brightness_percentage": 30,
    "max_brightness_threshold": 2000,
    "min_brightness_threshold": 500,
  },
  "special_interval": 60,
  "dates": [{
    "date": "21.06",
    "text": "HAPPYBIRTHDAYPAPA"
  }, {
    "date": "27.09",
    "text": "HAPPYBIRTHDAYMAMA"
  }]
}

In Detail

environment

• Type: String
• Values: dev,prod

tick_interval

• Type: Int
• Unit: Seconds

Time between clock ticks in seconds

color

• Type: Array

Color of the LEDs.

transition

• Type: String
• Values: simple,fade,matrix

Transition between different words

mqtt

• Type: Object

MQTT related settings

opt3001

• Type: Object

Opt3001(Lightsensor) related settings

dates

• Type: Array
• Default: []

Special Dates like birthdays can be configured here. The clock will write the given text at this date to the screen.

Images

Development

For local development on a non raspberry pi system you have to comment out the controller import. Because the GPIO packages are only available on a raspberry pi.

Unittests

python3 -m unittest -v

Team

• Thomas Pöhlmann (@perryrh0dan)

License

MIT