replacing usb cable with wireless "cable"

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I need to move my AVRISP and other programmers over to my bench about 15 feet away.   So I'd like to toss the USB cable between my PC & AVRISP programmer into the trash & replace it with some sort of wireless connection.   I am not interested in any kind of boot loader, but fairly normal studio 6 tool interaction (slight degradation allowable).

 

I've seen the usb/catcable---catcable/usb converters, but would much prefer wireless to prevent/overcome damaging ground loops from such a wide installation.  No need to burn out my pc, scope, or inject noise.

 

The only thing I've seen that might work is this, but it's a bit overkill and $$

http://www.nextwarehouse.com/item/?1125980_g10e

 

Is anyone using something more suitable?

 

 

 

 

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

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Grab a RaspberryPi and do it via WiFi or BlueTooth

 

Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

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That's an interesting thought since I have 2 spare Rpi sitting less than 2 feet from this keyboard.  Not sure yet how the details would work out.  I was hoping for something ready to use (such as some sort of wireless cable set), but the PI idea is something I'll investigate.

 

 

I dug around some more and found some old  product links...apparently this was big news around 2007-2009, then poof...most of the following are good with XP/Vista, but perhaps not win7/8/10...one of these seems  realtively current, but none were as low cost as I wanted.

The search term is apparently "wireless USB hub", for the most hits.

http://www.gefen.com/kvm/dproduct.jsp?prod_id=4505

http://www.ramelectronics.net/product.aspx?zpid=128

http://www.ebay.com/itm/like/190589610686?lpid=82&chn=ps

http://www.cnet.com/news/if-at-first-you-dont-succeed-try-the-new-wireless-usb/

http://www.iogear.com/product/GUWIP204/

http://store1.alumigogo.com/product_detail.php?id=SKUB00D7FRQMU&gclid=CNTyi4HVx8YCFYI7aQodGD8OZA#.VZsP90bbJaQ     
http://www.everythingusb.com/cables-unlimited-wireless-usb-adapter-kit-15823.html

 

I'm still searching for something of recent vintage

 

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

Last Edited: Tue. Jul 7, 2015 - 12:04 AM
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Google "avr keyfob programmer" or, closer to home, "buttload avr"

 

The "wire" in this case is you walking across the room carrying a programmer that's pre-loaded with the hex image.

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The "wire" in this case is you walking across the room carrying a programmer that's pre-loaded with the hex image.

 Known in the 80's as sneakernet.

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The "wire" in this case is you walking across the room carrying a programmer that's pre-loaded with the hex image.

 

 

good thought, but unfortunately, I need to stay at the computer to run the show.  So wireless is really desired.   I hoping to snag a deal on one of the extenders.

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

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ka7ehk wrote:

Grab a RaspberryPi and do it via WiFi or BlueTooth

How would that extend his USB connection, assuming that the debug software needs to talk to the dongle over USB?

 

 

 

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Do you want to put the wireless-circuitry before the USB or after the USB?

 
The devices that displayed in the links plug into the USB of the PC.  Then on the remote end, the device that would have gone into the PC is instead plugged into the front-end of a wireless linking device.  Having the wireless-link after the USB means taking the SPI signals that are coming from the USB-driven device and converting them into three wireless signals.  You need a clock, a MOSI (data to the AVR being programmed), and a MISO (data from the AVR being programmed).

\

Since you can set the programming speed quite low when doing ISP programming (in-system programming; the AVR term for  SPI flashing), you can use cheap eBay Bluetooth/Arduino modules and demostration boards to make this kind of link.

 

Is this what you are interested in doing?

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I use a laptop and carry the silly computer around with me. Sitting at the kitchen "bar" right now.

The largest known prime number: 282589933-1

It's easy to stop breaking the 10th commandment! Break the 8th instead. 

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The devices that displayed in the links plug into the USB of the PC.  Then on the remote end, the device that would have gone into the PC is instead plugged into the front-end of a wireless linking device.  Having the wireless-link after the USB means taking the SPI signals that are coming from the USB-driven device and converting them into three wireless signals.  You need a clock, a MOSI (data to the AVR being programmed), and a MISO (data from the AVR being programmed).Iiiiiuuu

I wanted to have: PC/USB<<===>>wireless adapter<<===>>USB programmer<<===>>AVR target       ...so the miso,clock,etc use the normal ISP programmer connections.

 

Mostly I wanted to eliminate remote ground loops, since the stuff was plugged into a different outlet. I also needed a longer reach from my workstation (could use a cat5 USB extender, but could still have ground/safety issues)

I bought this isolator (uses ADUM4160 chip) & it works great for providing isolation:

http://www.ebay.com/itm/USB-Isolator-ADUM4160-Built-in-Isolated-350MA-2watt-power-supply-By-EtimesParts-/251948834635?pt=LH_DefaultDomain_0&hash=item3aa9521f4b

I connected to my PC (using a 4 foot usb cable) & on the isolator's "remote" side plugged in a $5 quad hub (using a 3 foot cable) which allowed me to plug in both my programmer & a $1.50 serial RS-232/USB terminal converter**...providing reduced danger of blowing up my PC from the high current project electronics.  Placing the isolator in the middle allows an "extension"  of the USB cable length, with no comm problems noted.  I could "see" & operate both devices from the PC side with no trouble (studio 6.2 & Bray's terminal).

 

I discovered a "module" from Murata (NMUSB202MC), but didn't find any off the shelf adapters that use it (yet).

http://www.electropages.com/2015/06/mouser-dual-port-usb-data-isolator-industrial-medical-applications/?utm_campaign=2015-07-20-Mouser&utm_source=newsletter&utm_medium=email&utm_term=article&utm_content=Mouser+-+Dual-port+USB+data+isolator+for+industrial+and+medical+applications

 

**free shipping:

http://www.ebay.com/itm/PL2303HX-Converter-USB-To-RS232-TTL-USB-To-COM-Serial-Adapter-Cable-Module-/181341408242?pt=LH_DefaultDomain_0&hash=item2a38ca4bf2

 

 

 

 

 

 

 

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

Last Edited: Sat. Jul 25, 2015 - 07:36 PM
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avrcandies wrote:
I bought this isolator (uses ADUM4160 chip) & ...
Here's another one though it does not supply as much current :

Adafruit USB Isolator - 100mA Isolated Low/Full Speed USB ID: 2107 - $34.95 : Adafruit Industries, Unique & fun DIY electronics and kits

http://www.adafruit.com/products/2107

"Dare to be naïve." - Buckminster Fuller

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Here's another one though it does not supply as much current :

 

It also does not have a case, which I'd consider important in an isolator  (to prevent shorts and thus defeating the isolation) ...but it is always good to have another possible source.

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!