Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Thank you for the help. It helped alot . The difference is down to about 6 seconds. Ultimately it would be great to get it down to a second or two but maybe I can't do that without a different type of circuit.
All I need is a buzzer to sound every 70 seconds for about 2 seconds and keep...
Hello,
I have built an astable timer using the 555 chip. It is set up to be on for 70 seconds and then off for 2 seconds.
The problem is that when I first power the circuit up the on time is about 90 - 100 seconds (20 - 30 seconds longer than it's suppose to be). Once it has completed the...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
