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    • River Crossing Puzzle
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      • Power outputs
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    • Playing around with traffic control
      • Mini LED Traffic Lights
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    • 3D printing of recessed areas
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      • Other contactless switches
    • Simple Power Module
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      • Reading Telephone Signals
      • Ringing the telephone bell
      • The Retrophone Switchboard
      • The Modular Retrophone
    • Personalized 3D printed figures
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    • Dual rpm meter
    • 6-Speed Gearbox
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    • Experiment Board
    • Ultimate Multi Power Module
      • Power Module - Part 1
      • Power Module - Part 2
      • Power Module - Part 3
    • Automatic color sorting
    • The next Zauberling
    • Power and Interface PCB
    • The 'Zauberling' - First application
    • The 'Zauberling' - Software
    • Arduino Pro Mini for fischertechnik
    • The infinite lemnicate
    • Vintage telephone MP3 player
    • Bluetooth Joystick Shield
    • Communication over Bluetooth
    • Joystick shield 315MHz
    • Joystick shield 2.4GHz
    • PS2 Controller 2.4GHz
    • Fischertechnik DC motor alternatives
  • In development
    • The Retrophone
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