A simple barcode security lock circuit or barcode scanner circuit is explained in the following article using just a handful of ordinary components such as an op amp, an LDR […]
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LCD Monitor SMPS Circuit
This power supply functions with a broad input voltage range from 90 to 265 V AC and produces a dual output in the form of 5 V / 2.5 A, […]
Oil Burner Button Start Ignition Circuit
The post discusses a simple automatic ignition for an oil burner system system which is initiated with a push button operation. The idea was requested by Mr. Andreas. Technical Specifications […]
Simple RGB LED Controller Circuit
In this post we learn how to make a simple RGB (Red, Green, Blue) LED controller circuit which may be designated to flash a group of RGB LEDs with a […]
Morse Code Flasher Circuit for Lighthouse
The post discusses a simple morse code lamp flasher circuit which may be used for model lighthouse signalling applications. The idea was requested by Mr. Frank Gardner. Technical Specifications I […]
Solar Cellphone Charger Circuit
The article comprehensively discusses a MPPT based smart solar cell phone charger circuit. The idea was requested by one of the avid readers of this blog. Technical Specifications I am […]