Let's Make Robots!

Bumper switch help

Hi all,

So I got most of my robot parts. I still don't have any kind of sensor for the front, which is fine for the moment. I'll buy one when I have more cash.

My problem is my nephew's visiting from Norway and would like to see my robot in action, so I've rigged up a front bumper switch kind of thing (I hate it when I use my ingenuity). The device is simple, a pivoted arm on the front will swing to one side when the robot drives into something causing foil terminals to meet and complete a circuit. I'm particularly impressed with my use of elastic bands to centre the swing arm :)

So now I've made this temporary object sensor, I have no idea what to wire it upto on my picaxe28 project board and I also have no idea about the programming.

If someone could help me out, I'd be ever so grateful and so would my nephew.

See pictures below

Thanks,

 

The Bromz

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Update

Ok, so I think I've got the code figured out now. Anyone have any idea what I need to connect the switch to?

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Thanks again Ignoblegnome.

Take a look at Picaxe Manual 3 on pages 25 and 26.

http://www.rev-ed.co.uk/docs/picaxe_manual3.pdf

They explain how to wire a switch and also discuss debouncing, which handles false triggering of your switch when it makes initial contact.

Thanks Ignoblegnome,

As always you're on the button.

Search for 'bump switch' on this site. You'll find lots of examples.

I have a bump switch with a Picaxe and code using an interrupt for Blind Lemon. I think the code is posted.