This simple LED voltmeter circuit, although simple, is capable of accurate voltage measurement. The input is applied to the high impedance input of IC1 via the attenuator comprising of R1 […]
Simple Code Lock Circuit
This simple code lock circuit can be used to lock doors by pressing a 3 button keypad. As the simple code lock circuit consists of extremely few components it is […]
Simple to Build Mosquito Swatter Bat Circuits Explained
Mosquitoes are found all throughout the planet and pose a serious threat to humanity. Eliminating these “devils” by electricity would be a wonderful method to exact revenge. This is the […]
Simple Crowbar Circuits for Over-voltage Protection
This article discusses a few basic circuits for DC over voltage protection crowbars. With the description that follows, let’s discover how each crowbar circuit operates. Definition of Crowbar Circuit The […]