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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.
Hi
I'm working on a project.
I want to have a time for two days. I am limited to 555 timers only can u please help me.
I was thinking to have a binary counter and count up when the signal is given and then when it gets to two days a buzzer goes off
Good approach, check out the CD4521 24 stage binary counter. It has a built-in oscillator, but you can drive it from a 555 if you want. The CD4045, 21 stage binary counter could also be used and may be more available.
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