Elektor Internet Radio

Elektor Internet Radio
Elektor Internet Radio

98.40€ *
excl. VAT

117.10€ *
incl. 19% VAT

* Prices plus shipping costs

Delivery time approx. 5 working days

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  • egnite
  • EGN101408
egnite: Elektor Internet Radio EIR was developed in cooperation with the Elektor magazine .... more

egnite: Elektor Internet Radio

EIR was developed in cooperation with the Elektor magazine. Although intended as internet radio, EIR is a versatile development platform for ARM7, especially when it comes to the development of network-enabled applications that implement playback or recording of audio data.

Manifold interfaces

EIR is equipped with a multitude of interfaces, through which it can be controlled and extended:

  • Digital I/O – 16 GPIO pins available
  •  all CPU signals can be accessed via connection plugs
  •  20 pin JTAG interface
  • 10/100 Mbit ethernet interfaces
  • 4 analog inputs
  • RS-232 interface
  • USB interface
  • audio in- and outputs: 3.5 mm audio jack
  • slot for SD card

Audio-IC VS1053

EIR embeds a VS1053 audio codec IC from VLSI solution, which supports several audio data:



Ogg Vorbis (via software plugin), IMA ADPCM, 16-bit PCM

Decoders MP1, MP2, MP3, FLAC (via software plugin), Ogg Vorbis, HE AAC, WMA, WAV, MIDI


EIR provides enough memory for sophisticted applications

  • 512 kB internal flash
  • 64 MB external SDRAM
  • 4 MB external serial Flash
  • extendible via SD-Karte


  • AT91SAM7SE512, up to 55MHz


Applications are developed in the high-level C language, using the freely available GNU-tools. An active open-source community develops and maintains Nut/OS, a cooperative multithreading operating system and TCP/IP-Stack, which has been created especially small embedded systems. Its extensively documented source code provides an easy to use programming interface which closely resembles that of the C language on PCs. While a fully working configuration file for the EIR is already included, any and all settings can be customized to fulfill any additional requirements with few mouseclicks in the graphical interface for Windows, Linux and Mac OS X.
A complete, internet-capable webserver requires less than 100 kBytes flash and 20 kBytes RAM. This leaves enough space for ambitious product designs, including a webbrowser-controlled Internet radio that is already flashed to the board before shipping. The Nut/OS distribution contains additional useful example applications.

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