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My Electronic Projects

• PIC16F876 based My nixies & nixie clocks with IN-8-2, CD66, GR112 & IN-18 Nixie tubes. (several finished)
• PIC16F628 based LCD & VFD Clock with DCF77 receiver. (finished)
• PIC16F876 based Blue & White 7-segment LED Clocks with 9 to 102mm (0.36 to 4.0") displays & DCF77 receiver. (finished)
• PIC16F84 based Countdown Dark Room Timer from 00:00 to 99:59 minutes with relay & alarm. (finished)
• PIC16F876 based 2-channel Electronic TL-Dimmer with sunrise & sunset simulator for fishtanks, with 20x4 VFD, timer, DCF77 24H-clock & calendar. (under construction)
• MIDI Interface for SoundBlaster compatible soundcards. (finished)
• Four digits (fake) CPU Clock Indicator (Red & Blue version). (finished)
• Low drop Temperature Controlled FANregulators with LM2941CT & LF356. (finished)
• Low drop Manual FANregulator with LM2941CT. (finished)
• 7-12V Voltage Monitor with LM3914N. (finished)
• USB switch for automatic power-on of external devices. (finished)
• Digital Thermometer with ICL7107 for CPU, case, PSU temperature & waterflow monitoring. (under construction)
• Digital Flowmeter for SwissFlow flowsensor. (finished)
• Pumprelays for automatic power-on of waterpump with PSU. (finished)
• PSU Bus for additionnal connection of fans or other devices in PC. (finished)
• Extension for Digidoc5 (up to 7 channels) to control fans at two speeds. (finished)
• AC-Powered LED.
• 15V - 7A PWM Speed Controller with NE556 & N-MOSFET for minidrill. (finished)
• Combined Manual Fanregulator & 7-12V Voltage Monitor. (finished)
• DIY Printed Circuit Board (PCB) Manufacturing.

All finished projects are fully working and fully tested.

Most schematics are made with the now obsolete Circuitmaker 2000, some are made with Splan from Abacom.

A zipped library with my Circuitmaker user-defined macros (components) needed to display the schematics correctly can be downloaded here: userlib.zip

Most PCB layouts are made with Circad'98 and some later with Sprint-Layout. (a free Circad'98 demo version can be downloaded from http://www.holophase.com, a free demo version of Sprint Layout can be downloaded from http://www.abacom-online.de).

Every schematic and PCB layout from my projects will be available for download. With the above mentionned demos you can print or modify the schematics and PCB layouts to your wishes.

Where possiblen I will include the schematics and PCB layouts in Acrobat PDF format for easier printout.