4017 - Electronics Area https://electronicsarea.com Electrical and Electronics Tutorials and Circuits Thu, 26 Dec 2024 15:51:34 +0000 en-US hourly 1 https://wordpress.org/?v=4.9.26 Electronic Doorbell Circuit using a 555 and CD4017 https://electronicsarea.com/electronic-doorbell-circuit-555-4017/ https://electronicsarea.com/electronic-doorbell-circuit-555-4017/#respond Sat, 30 Jan 2021 15:24:06 +0000 http://electronicsarea.com/?p=1929 Electronic Doorbell circuit that lets know that someone is at the door. Made with 555 timer and 4017 decade counter allowing to change the tone of each note

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The post Electronic Doorbell Circuit using a 555 and CD4017 appeared first on Electronics Area.

]]> https://electronicsarea.com/electronic-doorbell-circuit-555-4017/feed/ 0 How to make a Police Style Strobe Light Circuit? https://electronicsarea.com/police-style-strobe-light-circuit/ https://electronicsarea.com/police-style-strobe-light-circuit/#respond Tue, 09 Apr 2019 17:27:02 +0000 http://electronicsarea.com/?p=1217 This circuit shows the familiar lights which are used on police cars. It uses a 555 timer as a clock for the 4017B decade counter, two transistors and twelve LEDs

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