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.
Ah ha...
555's remember them!
I'm sure I could wire up something like this on some board, so would I need.
6 separate 555 circuits for each time...
ie.
"SPAR"
120 sec = 2 resistors, 1 capacitor, 1 x 555
180 sec = 2 resistors, 1 capacitor, 1 x 555
240 sec = 2 resistors (10M Ohm)...
Well stuff will probably start coming back to me...
Is this quite a hard circuit to rig up??
I dont own a laptop so the thought this would be a cheaper option.
I can probably be cheeky and go to the local college and ask for some help!
Tom
This would be the interface sorta thing...
So when you select whatever you want on the dials it does this...
Silence for time 1
Buzzer (for 1 second constant)
Silence for time 2
Buzzer (for 1 second constant)
& it would loop until switched off.
It's basically a boxing round timer...
Hi, I was wondering if someone could help me with the design of the following circuit.
I did electronics about 7 years ago, and cant remember a thing about any components etc. so would appreciate all help!
Timing Circuit...
Loop 1
2min, 3min, 4min, 5min
Loop 2
30sec, 1min
I...
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