l33tllama / NetRadioAlarmClockPi

NetRadioAlarmClockPi

Main Python program that runs my Internet Radio Alarm clock.

What is my Internet Radio Alarm clock?

It's a home-made alarm clock that plays Internet radio streams to wake you up in the morning. The components consist of

• Raspberry PI Zero W
• Arduino Nano
• 128x64 graphical B&W LCD
• Phat DAC for audio output
• DS1307 RTC module - connected to Pi over I2C bus
• Stereo speakers and amp module
• Big snooze pushbutton
• Rotary encoder for volume
• 3D printed chassis - see https://github.com/l33tllama/NetRadioAlarmClockCase

The main Python program consists of several files and classes containing the functionality.

In code, it uses:

• A SQLite database for storing alarms and radio stations.
• smbus2 for I2C communications. A very good way to communicate to Arduino via Python. You just need a logic voltage level shifter.
• The Linux command-line program mpg123 to stream radio station URLs.
• My own scheduler class that calls functions at certain times. Very basic but it works.
• The Python library https://github.com/asrp/python-espeak for text to speech for alerting some events.
• Flask and Flask SocketIO for the webserver and websocket connection for realtime control.