Are there any electrical engineers here?

[Chems]

Are any of your experts with electronics. I've been looking for something for a while but can't find what I want. I'm after a programmable chip (preferably C lang) that can take input from 4 simple buttons and switch a 240v socket via relay as output. It seems simple enough but I know next to nothing about electronics so can't really find what I need.

Any help much appreciated!

 

[Tusses]

It's not clear why you need programable ? if you just want to switch things with buttons ?

Tell me more !

google PIC chip too, they are pretty simple things

 

[Chems]

Well what I want is thus in pseudo form:

Press btn 1 - output on 1 second

Press btn 2 - output on 1 second reverse current

Press btn 3 - output on for length of accumulated time of btn 1 minus btn 2 amount.

Press btn 4 - output on reverse for length of accumulated time of btn 2 minus btn 1 amount.


So I need a little more than just switching.

Thanks for the PIC nod, that does look like the right sort of thing!

 

[Tusses]

So, i am guessing 1 and 2 move and 3 and 4 return ?

 

[Chems]

Exactly!

 

[Tusses]

PM me more details if you don't want to post them here, and I'll have a think for you

Rich

 

[Paulg]

You may want to have a look at the Propeller chip from Parallax. It can be programmed in C (Google for Catalina) although its native development language (Spin) is very simple to learn.
The UK supplier is Spinvent.co.uk. There is a nice prototyping board (http://www.spinvent.co.uk/product%20inf ... B_PIP.html) that has everything already on it - you just need a power supply and a USB cable.

 

[Tusses]

If distance is critical, I'd use a marked shaft / wheel, and a counter , rather than a timer, and maybe microswitches for the return stop. But without knowing more, it's hard to say.