I'm making a small project that will power a latching relay. I've got working using the normal circuit for a 555 timer;
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which I'm sure you all know works like this;
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I now want to modify it so that it needs 3 trigger pulses within 5 seconds before it changes state. I don't know if I can do this with the 555 as it is, or if I need to add some counter to trigger the 555. Can anyone help me and suggest the simplest way to achieve this?
Thank you.
**broken link removed**
which I'm sure you all know works like this;
**broken link removed**
I now want to modify it so that it needs 3 trigger pulses within 5 seconds before it changes state. I don't know if I can do this with the 555 as it is, or if I need to add some counter to trigger the 555. Can anyone help me and suggest the simplest way to achieve this?
Thank you.