ujt - 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

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

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

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