Category: Toys-Tinker

Electronic Fifteen LED Roulette

The following was submitted on July 11th, 2007. Message: I want to combine Ne555 with 74154 IC.The indication of the outputs must be shown with LED’s but up to so far it need 15...

Quadcopter of Harald Sattler

The top of the sNQ Shorty looks much tidier than its big brother, here the experience gained with the first work increases. The cables between the control unit and the LEDs and the motors...

Metal Detector Circuits Problem

With the best wishes for you. I found your address and browsed your website. I have a question and hope to take your help and answer. I need to good metal detector’s circuit and...