Mirror
This page mirrors the contents of Gutwenger.com for beo2pc, as there was some time where that website was offline.
Introduction
What is beo2pc?
Simply speaking, it is a small electronic circuit with remote control receiver (which can receive the infra-red signals of Bang&Olufsen remote controls), which receives the signals from the remote control and sends them to the PC.
The biggest advantage of this selfmade solution based on freeware programs is the possibility to control all the applications on the computer (Multimedia player, presentation tools, ...) with the B&O remote control .
Primary purpose of this project is the playback of the music files on the PC over the Bang&Olufsen HiFi system. (Audio out PC (line out) to Hifi (AUX in) is needed).
After B&O has released Beolink PC2, many B&O-owners wait for the support of their older HiFi system, because Beolink PC2 is only compatible with newer audio systems. This project is for all owners of B&O music systems which do not have a master link connector yet and cannot use the original product (October 2002).
Technical Prerequisites
What do you need for it?
a PC (about 300 MHz is sufficent) with a soundcard, big storage and a free serial interface
some electronic pieces
an original B&O IR receiver (it is possible to build a 455kHz infrared receiver yourself, but is a big effort)
good knowledge in electronics
some freeware programs
Hardware
The electronics consist of:
a IR receiver, and it is better to use an original B&O IR receiver
a Atmel micro prozessor AT90S2313: converts the signals of the IR receiver and converts them into serial signals
a __Schnittstellenwandler__ MAX232 which changes the output levels of the microprocessor (0V / 5V) into RS232 levels (-15V / +15V)
some components like resitors, condensators, dazugehörige Bauteile wie Widerstände, Kondensatoren, quarz, LED, 5V power supply, some jacks
The work principle:
The current circuit has two inputs:
1. for the IR receiver (main room)
2. (if you need it) a connection to the MCL cable to "Link" rooms, when this is done it allows the remote controlling out of all connected rooms.
Important: If the second input isn't used, it has to be laid to High-Level(5 V)!
The circuit:
- Circuit plan
The parts
- (not in the picture) stabilized 5V power supply
- IR1 (not in the picture): B&O IR receiver (spare part: B&O Nr. 8089096)
- IC1: Atmel Mikroprozessor AT90S2313
- IC2: __Schnittstellenwandler__ MAX232
- Q1: Quarz 4MHz
- C1: Capacitor 100nF
- C2-C6: Elko 4,7µF/25V
- C7+C8: Capacitor 22pF
- D1: LED red 3mm
- R1+R2: Resistors 1kOhm
- R3: Resistor 330 Ohm
- R4: Resistor 10 kOhm
- X1: SubD __Buchse__ (Jack?) 9pol.
- X2: __Klemmleiste__ 4 pol.
Download
Please use the website of Rene Gutwenger for downloading the files because he has started the Beo2pc project. Also don't forget to send encouragements to him :)
Here you can download the software:
www.8ung.at/gutwenger/beo2pc.html (The page is in German)
Just scroll down to "download".
Software
The software consists out of two important parts:
- the program in the Atmel microprocessor AT90S2313 (converts the 455kHz pulses into serial line signals)
- the freeware program Girder which controlles the serial device on the PC and makes the control of the PC with learned commands possible
