555.doc
Hi Edeca,
Thank you very much for your reply
My name is Luis, I am portuguese and I am 31yo.
As I had electronics at school, now my only knowledge of electronics right now is soldering some wires...
Now, regarding the help I need, in the attached document I wrote that I can't give the step from the diagram to a pcb prototype board...
The other thing is how do really things work.
My grandfather always said to me: I will not give you the fish, I will give you the bait and the wire and I will teach you how to fish.
The thing is that my knowledge will not let me go further alone
Nevertheless I've come up with another idea, instead of relays I could use a optoisolator (4N25) and this will work too
and I guess that could make the circuitboard much smaller...
These are only ideas that I am getting together, but from the paper to the pcb, its a big step for me.
Let me invite you again to check the attached document called 555.doc
Cheers and thanks again
Luis
PS - Sorry for my english
You have not stated what you need help with. If you have specific questions, please ask them. This does sound like homework, so we cannot do it all for you.
If you know anything about microcontrollers, it is possible to take some older mobile phones (e.g. a Nokia or Siemens) and connect them to the serial port of your micro. From here there is a very basic set of commands you can use to send a text message, which might achieve what you are trying to do.
However, we do not know if you are stuck on the input, processing or output.