General scheme

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∏-box possibilities & usages

A ∏-box allow different possibilities and configurations :

  • Transmit on an FM frequency an existing audio stream
  • Transmit on an FM frequency a live source from an input on the soundcard
  • Transmit on an FM frequency audio files that have been uploaded threw the piratebox layer of the ∏-box
  • Transmit on an FM frequency data (any files) in the ∏-box (with minimodem)
  • Transmit on an FM frequency the sonification of wifi packets around the ∏-box
  • Transmit on an FM frequency another FM radio received threw the rtl_sdr device (FM analogical relay)

The FM transmission can be done via software (PiFM) or using a classical FM transmitter using the default audio output of the Raspberry Pi, when using PiFM, it is possible to change the frenquency on the fly

  • Upstream to an icecast server any input listed before (.ogg flux), with the posibility to choose the bitrate
  • Activate or not the PirateBox layer to allow one to upload any kind of file on the ∏-box

Image of the ∏-box admin server side :

Pbox-admin.png

HARDWARE COMPOSITION

The ∏-box is composed of

optional

see also rtl_sdr section