Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: Bobb on September 30, 2011, 02:46:16 PM

Title: $50 Robot
Post by: Bobb on September 30, 2011, 02:46:16 PM

Hello, Society of robots

Got my bits through today for the $50 Robot  ;D, i'm in the uk and used rapidonline as my source. . . Just one problem, the '28 pin DIP socket' in the parts list was discontinued, I ordered what I thought to be an equivalent. (order code 22-1719, if you'd like to see)

The socket that turned up wont take the ATmega8 that i have, its far too wide.

So, my question to you is; Can I take out the plastic bridge and use it as two sockets or just shorten the bridge?

(http://i1117.photobucket.com/albums/k590/Bobbalong/30092011274.jpg)

Title: Re: $50 Robot
Post by: Gertlex on September 30, 2011, 05:45:02 PM

As long as the pin spacings are the same, ya, you can just cut it into two pieces... Good luck :)

Title: Re: $50 Robot
Post by: Soeren on September 30, 2011, 11:01:57 PM

Hi,

Sure, it's standard 1/10" module, just cut the 3 middle "bars" out and solder each "side" at the right distance apart. Don't cut too close to the contacts if you use a side cutter, or you risk damaging it.
If appearance matters, use a metal file after cutting.

They must have had some sleepy dork taking your order. Not only was it a wide socket ordered with a narrow chip, but it's the most expensive type you got (not counting test sockets) - a wire wrap, tulip contact, socket.

Title: Re: $50 Robot
Post by: Webbot on October 02, 2011, 10:56:31 AM

Given you are in the UK then try Maplin http://www.maplin.co.uk/dual-in-line-sockets-2530 (http://www.maplin.co.uk/dual-in-line-sockets-2530)
Not the cheapest but at least they lots of high street shops so you may have one locally.

Title: Re: $50 Robot
Post by: shamikrudra on October 04, 2011, 10:10:46 AM

You can use two 14 pin ic base one after another.

Title: Re: $50 Robot
Post by: Bobb on October 14, 2011, 03:50:02 AM

Thanks for the input people, much appreciated. I checked out my local(ish) maplin and picked up the right socket, but have struggled to find an ATAVRISP2 that I don't have to get shipped to the UK.

I was suggested http://uk.rs-online.com/web/p/microcontroller-processor/7055111/ (http://uk.rs-online.com/web/p/microcontroller-processor/7055111/) as an alternative.

Given my track record now has a socket twice as wide as my chip and enough resistors to build a really short fence around my house. I was wondering if any of you nice people could vouch for that programmer working in the '$50 Robot tutorial' BEFORE I get it? ;D

Title: Re: $50 Robot
Post by: Webbot on October 14, 2011, 05:35:02 AM

UKsuppliers:

http://uk.farnell.com/atmel/atavrisp2/programmer-avr-mcu-isp/dp/1135517?Ntt=avrisp (http://uk.farnell.com/atmel/atavrisp2/programmer-avr-mcu-isp/dp/1135517?Ntt=avrisp)
and
http://www.rapidonline.com/SearchResults.aspx?kw=AVRISP (http://www.rapidonline.com/SearchResults.aspx?kw=AVRISP) - out of stock at the moment

Title: Re: $50 Robot
Post by: Soeren on October 14, 2011, 02:32:54 PM

Hi,

Plenty on eBay (http://www.ebay.co.uk/sch/Business-Office-Industrial-/12576/i.html?_nkw=avrisp)