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Homemade Double Layer PCBs

Last updated: Monday, August 6, 2012Yes, use gloves and a well ventilated area when you are working with this chemicals.


Atomic Nixie Clock with GPS

Last updated: Friday, August 3, 2012Old nixie tubes used in a modern circuit. There is a lot of function built in this …


Time Machine

Last updated: Monday, August 6, 2012How to stop the time A really interesting optical illusion can be obtained with strobe effect, using …


DIY Laser Show

Last updated: Monday, August 6, 2012 Just using 2 mirrors and 2 small “walkman” motors with variable speeds we can build a …


Homemade Metal Detector

Last updated: Tuesday, August 18, 2015 The original project ( SilverStar ) was made by C. Ferenc ( ) Description is …


Digital RPM meter and PWM driver

Last updated: Tuesday, August 7, 2012 I used 2 microcontrollers PIC16F84A in this project. One for measurements and LCD display and one …