Comments on: 5 to 30 Minute Timer Circuit using 7555 IC https://electronicsarea.com/5-to-30-minute-timer-circuit-7555/ Electrical and Electronics Tutorials and Circuits Fri, 29 Dec 2023 18:22:51 +0000 hourly 1 https://wordpress.org/?v=4.9.25 By: Marcel https://electronicsarea.com/5-to-30-minute-timer-circuit-7555/#comment-4465 Wed, 16 Nov 2016 01:28:59 +0000 http://electronicsarea.com/?p=2313#comment-4465 Hello,

Thank you very much. You’re right, we’re going to correct the article.

regards

]]> By: simon https://electronicsarea.com/5-to-30-minute-timer-circuit-7555/#comment-3056 Fri, 08 Jul 2016 03:16:29 +0000 http://electronicsarea.com/?p=2313#comment-3056 For 7555 CMOS timer, you’d better add a 10nF capacitor between pin 5 and ground, otherwise the noise will likely to turn output into high when you power your switch on, even before you setup your timer switch.

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