Description

This script is used for an internet radio inside an old radio.

The internet radio has a display showing the channels. The display was set up by

https://tutorials-raspberrypi.de/hd44780-lcd-display-per-i2c-mit-dem-raspberry-pi-ansteuern/

Additionally it has two switches set up as explained in:

http://razzpisampler.oreilly.com/ch07.html

It uses OMX player to play music after

http://python-omxplayer-wrapper.readthedocs.io

Basic functionality

• Switch ON
  • if not already_playing
    • Start OmxPlayer with radio channel of choice
    • set already_playing to true
• Switch OFF
  • try to switch OFF OmxPlayer
  • set already_playing to false
  • switch_2 UP
    • increase the radio channel by 1
    • display the radio channel name
  • switch_2 DOWN
    • reduce the radio channel by 1
    • display the radio channel name

Linux Setup

Install omxplayer

store the radio.py script into /share

insert into /etc/rc.local

sudo python /share/radio.py

Analog Tips:

1. Get a radio that has an oldschool on/off switch so you can also switch the DC of the raspberyy pi
2. Get a Wifi antenna or a USB cable that is long enough to keept the wifi adapter away from transistors in the radio
3. Use an IC2 radio as it is easier to use than a standard 16x2 display

Photos of my radio