All designs listed is available for you to download, completely free of charge. All warranties void though. No responsibility for the circuits is taken, nor will I take any responsibility for anything happening as a result of using any of the designs/circuits.

Here are all my Märklin related circuits:

• A blockcontroller ... Description.
• IR sensor
• HF Remote controller ... Description.
• Turnout indicator memory ... Description.
• Threeway turnout controller ... Description.
• Firetruck flasher ... Description.
• Electronic direction changer. (quite nice I think) ... Description.
• Constant lighting in coaches, NiCd battery based
• Add new functions F1 & F2 to Delta decoder. Märklin Digital.
• So many have asked: Schematic of the original k83.
• Description for a low-voltage AC regulator.

Several other designs are being evaluated or prepared:

• Train decoder like 6090. Märklin Digital.
• NOW: Train decoder like Delta. Märklin Digital. December 7, 1999
• k83 (6083) Turnout decoder. Märklin Digital.
• k84 (6084) Function decoder. Märklin Digital.
• Turnout decoder for C-track. Märklin Digital.

The following are just ideas, based on the use of the new PIC12C508 processor from Microchip. Your ideas are very welcome

Some of these may have to wait until Microchip releases PIC12CE518, which has build-in EEPROM.

• Firefighter truck flasher (new enhanced small version).
• Traffic light controller (numerous other uses).
• Three-way turnout controller, pushbutton operation
• Semi-automatic station entrance controller, pushbutton operation
• Semi-automatic station exit controller, pushbutton operated.
• Electronic direction changer (new small version).
• IR recognition transmitter.
• IR recognition reciever
• Train decoder for N-scale and ROCO locs with no/limited space.

(C) 1997, 1998, 1999 Bo Brændstrup
Revised: December 3, 1999
URL: http://microwave.emi.dtu.dk/bbr/bbr20.htm