BASIC Stamp Input Question.

fayev

Hello,

I've been trying to figure out if it is possible to write a piece of code that sets up a pin that regularly·checks for an·outside input in order to find out when the input goes high. This will be used in order to hook up a smoke detector so that the board will know when the smoke alarm goes off.

Thank you.

sam_sam_sam

fayev



Start here·with What’s a Microcontroller?·at this link at page 71 but i would start page 1

This talks about using a·switchs with a Basic Stamp you would use the 4N25 instead of the switch

http://www.parallax.com/Portals/0/Downloads/docs/books/edu/Wamv2_2.pdf

·Here is the data sheet for the 4N25

http://www.vishay.com/docs/83725/4n25.pdf·Look at

Fig. 14 - Switching Schematic



This will be used in order to hook up a smoke detector so that the board will know when the smoke alarm goes off.

The only type smoke alarm that you·might use is the type that has a light that light when the smoke alarm gose off the light will light

Also make sure to use the·ones that are battery and have no AC power to it

You also will need to·use an 4N25·Optocoupler Sensor

·in place of the light bulb

Becareful when do this because· you may harm your Basic Stamp if this is·not done right

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··Thanks for any··that you may have and all of your time finding them

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Sam

Post Edited (sam_sam_sam) : 4/25/2008 9:00:22 PM GMT