Arduino tehNiq Blog

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Pseudo-stereo adapter

TDA3810 is an old spatial, stereo and pseudo-stereo sound circuit who is hard to found, so I search replacement solution. In an old romanian book named “Electronica peste tot’ (Electronics everywhere) writted by mr. I.C.Boghitoiu,...

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LED bulb for solder gun

I use an old solder gun for made quickly some montages who is equipped with 6,3V incandescent bulb. So, Inadvertently, I broke the bulb. Because, I want to quick solve the problem, inspired by my...

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Monostable relay with 555

A practical application for monostable relay is temporary stair lights. After you short push on a button, light is on for few seconds (or minutes), after that lights is off. In roumanian old magazine...

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Automat de scara (releu de timp cu impuls)

Majoritatea blocurilor au “automate de scara” care prin apasarea unui buton aprinde becurile de la etaje o perioAda de 2-3 minute.. In revista TEHNIUM INTERNATIONAL- martie 1999, este articolul “Automat de scara”, scris de...