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Is Wi-Fi the universal cordless interface?

Jim Turley

Jim Turley
Total Posts: 18
Joined: Dec 2009

The article on ZeroG Wireless' little Wi-Fi module for embedded systems got me thinking: could Wi-Fi eventually become the de facto universal cordless/wireless medium for connecting user interfaces to embedded systems? Think about it: it would allow you to "attach" your front panel, display, buttons, knobs, dials, LEDs, and whatnot without actually attaching them. This would be terrific for systems buried deeply in or under other equipment where it's hard to reach. You can have an elaborate user interface on a product that's too small to hold a decent screen or keyboard. You could even use an iPhone as your user interface. I kinda like the idea. What you you think?

Posted on 2009-12-08 13:50:04 at 2009-12-08 13:50:04
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5 Replies

Sainot

Total Posts: 2
Joined: Dec 2009

ANT should also be considered.

As title says, the ANT protocol should also be considered. You can read more about it here http://www.thisisant.com/ Drawback is I suppose that iPhone does not have support for this. I have also heard something about wireless USB but not looked it up, should also be considered a serious alternative.

I'd have to agree that interfacing just about anything with one wireless device sounds like a pretty neat ideae.. smiling

Would be nice to read the article you mention, you wouldn't happen to have a link?

Posted on 2009-12-14 16:16:52 at 2009-12-14 16:16:52

Jim Turley

Jim Turley
Total Posts: 18
Joined: Dec 2009

ZeroG link

The link is in the first few words of the post above.

Or here:
http://www.techfocusmedia.net/embeddedtechnologyjournal/feature_articles/20091208-zerog/

Posted on 2009-12-14 18:00:37 at 2009-12-14 18:00:37

Mchipguru

Mchipguru
Total Posts: 4
Joined: Dec 2009

Problems with Wi-Fi in some Industrial applications

In some areas the wireless interface is great but in many industrial settings it will not work. Industrial environments are often very harsh and a wireless signal will just not work. With that a wired connection attaching to the network could get the ability to attach to a system from the office area either wired or wirelessly. Some of the equipment I work on has very high voltage isolation needs and wireless would be great but I end up using optical isolation on a "wired" connection due to the noise in the system preventing wireless from working reliably.

Posted on 2009-12-14 18:13:44 at 2009-12-14 18:13:44

Lord Loh.

Lord Loh.
Total Posts: 7
Joined: Dec 2009

Unoutdateable.

This reminds me of a small talk conversation with a friend (saddy) in a class. Our teacher had just mentioned that something is outdated.

Saddy: Let's start up a company that would manufacture something that would never get outdated.

me: Wires. One just cant dispense off them.

Wirelessness is just convenience. I would never dispense off wired connection. Not for critical applications any way. Imagine a wireless emergency stop button being nonoperative because the router lost the link.

If I had to choose a wireless technology for my designs, I would stick with the widest used, and most versatile one. WiFi.

As an after thought, I would add that the wireless technology I use would depend on the application. Probably Zigbee if I had to make an RF substitution for IR control and telemetric two way communication and restrict the WiFi for Bulk data transfer.

Posted on 2009-12-15 14:01:29 at 2009-12-15 14:01:29

iordache adriean

iordache adriean
Total Posts: 1
Joined: Jan 2010

someone knows were i cam faund t

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Posted on 2010-01-30 05:37:36 at 2010-01-30 05:37:36