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.
if i had an astable timer which can time around 1hr, how can i make the output LED stay on for 10 seconds rather than the full hour when the capacitor discharges? what would the circuit look like?
could anyone help me create a timing circuit which:
.... has a capability of timing from 30 minutes to 2hours
.... using two 555 ic to create one ic for the main timing and the other for changing the time a LED stays working for and pulse speed of it
thanx :) [/img]
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