What component do I need for this?
htesligte 2012-08-01 14:45:51 6072 Views4 Replies Hi all,
I'm sorry that the topic title is not really explanatory, but I really am a newbie in this electronics area and don't know how to achieve something like this:
[img]http://i46.tinypic.com/157zv5y.jpg[/img]
The two rectangular pieces would be some type of copper platter, which would be glued to a door. As long as they are touching (door is closed), the data cable would send a signal over the data cable, and if they don't touch, no signal is send.. Of course, the three lines labeled power, ground and data are the cables that should come from this.
I have been looking on a dutch electronics website (Conrad) and the robotshop.com website, but I just don't know how something like this is called. Can anyone here help me out?
Thanks in advance!
I'm sorry that the topic title is not really explanatory, but I really am a newbie in this electronics area and don't know how to achieve something like this:
[img]http://i46.tinypic.com/157zv5y.jpg[/img]
The two rectangular pieces would be some type of copper platter, which would be glued to a door. As long as they are touching (door is closed), the data cable would send a signal over the data cable, and if they don't touch, no signal is send.. Of course, the three lines labeled power, ground and data are the cables that should come from this.
I have been looking on a dutch electronics website (Conrad) and the robotshop.com website, but I just don't know how something like this is called. Can anyone here help me out?
Thanks in advance!
2012-08-02 17:51:35 Ok, then Ricky's suggestion is appropriate. You don't really need a data line. All you need is a voltage. So when the circuit is complete you register a "resistance" value. When it is open, then you have an open circuit.
You only need 2 wires. Vcc(+) and GND (-) Hector
You only need 2 wires. Vcc(+) and GND (-)
Hector 2012-08-02 02:16:02 [quote="Ricky"]
A magnetic switcher should be able to detect on/off without even contact. Does your application simply detect on/off status of a door?
[/quote]
That does indeed look like what I need. It should only register on/off, yes. I'll look into this further. Thanks!
[quote="Hector"]
You could make a custom PCB with large enough pads and use 3 [url=https://www.google.com/search?hl=en&newwindow=1&q=pogo+pins&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&authuser=0&ei=v6QYUJLfKcmxhAfdvoHwBA&biw=1920&bih=979&sei=pKUYUNnnMcLPhAfS2oCgBA]pogo pins[/url].
What is the goal of your project? Do you need to transmit data? or only open/close status?
[/quote]
I'm not sure if that would be something I need.. I don't understand it really. It should be just two pieces that, if they touch (open/close), sends a signal over the line.
The starting goal is just to register whether a door is open or closed, and when open, how long it has been open. It's a little school project, using a arduino board to talk from/to the computer. htesligte
A magnetic switcher should be able to detect on/off without even contact. Does your application simply detect on/off status of a door?
[/quote]
That does indeed look like what I need. It should only register on/off, yes. I'll look into this further. Thanks!
[quote="Hector"]
You could make a custom PCB with large enough pads and use 3 [url=https://www.google.com/search?hl=en&newwindow=1&q=pogo+pins&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&authuser=0&ei=v6QYUJLfKcmxhAfdvoHwBA&biw=1920&bih=979&sei=pKUYUNnnMcLPhAfS2oCgBA]pogo pins[/url].
What is the goal of your project? Do you need to transmit data? or only open/close status?
[/quote]
I'm not sure if that would be something I need.. I don't understand it really. It should be just two pieces that, if they touch (open/close), sends a signal over the line.
The starting goal is just to register whether a door is open or closed, and when open, how long it has been open. It's a little school project, using a arduino board to talk from/to the computer.
htesligte 2012-08-01 19:44:24 You could make a custom PCB with large enough pads and use 3 [url=https://www.google.com/search?hl=en&newwindow=1&q=pogo+pins&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&authuser=0&ei=v6QYUJLfKcmxhAfdvoHwBA&biw=1920&bih=979&sei=pKUYUNnnMcLPhAfS2oCgBA]pogo pins[/url].
What is the goal of your project? Do you need to transmit data? or only open/close status? Hector
What is the goal of your project? Do you need to transmit data? or only open/close status?
Hector 2012-08-01 18:40:59 A magnetic switcher should be able to detect on/off without even contact. Does your application simply detect on/off status of a door?
R2D2C3PO
R2D2C3PO 