Author Topic: Question about 555 timer  (Read 1038 times)

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Offline ballbreakerTopic starter

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Question about 555 timer
« on: February 11, 2011, 01:19:10 PM »
i have searched the web but couldn't find the answer i was looking for. my question is can you connect 2 inputs (e.g LDR) and 2 outputs (e.g LED) on a single 555 timer and if so how? thank you.

p.s connect them in a way that the one input output pair is independable from the other one
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Offline waltr

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Re: Question about 555 timer
« Reply #1 on: February 11, 2011, 01:41:05 PM »
Not on a 555 as it contains only a single timer. But there is the 556, a dual timer.

Offline ballbreakerTopic starter

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Re: Question about 555 timer
« Reply #2 on: February 12, 2011, 06:00:32 AM »
thank you how can i connect it?
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Offline waltr

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Re: Question about 555 timer
« Reply #3 on: February 12, 2011, 10:58:59 AM »
A 556 is just two 555's in one package with common power and ground pins. Each timer circuit is connected the same as if they were two independent 555's of which there is tons of info on the web.

The 555 is is very versatile circuit that can be wired to do many different tasks. What do you need it to do?

 


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