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rwill19050
Just joined
Username: rwill19050
Post Number: 2
Registered: 07-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, 23 July, 2007 - 12:32 am: | 
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August 2007 project, RFID Module, obsolete parts
Had an e-mail from ??? at EPE regarding the AT90S2313 PLC being an obsolete item.
'They' claimed the item was still readily available.
Load of cobblers.... I found it, (after an e-bay search),in the USA, but had bid for them....
I subscribed to SiliconChip, the Australian Mag that EPE 'bought' the project from, just to get the full program, not just the useless .hex file EPE offered.
The project was originally published in SiliconChip Magazine June 2004 in Australia.
No wonder the chip is obsolete....
What are we paying EPE for?, what about an updated program to suit the replacement ATTiny2313 chip....
What a shambles EPE
What are we paying you for, perhaps a subscription to SiliconChip would be a better bet.... |
obiwan
Frequent Contributor
Username: obiwan
Post Number: 1922
Registered: 12-2005
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, 23 July, 2007 - 12:50 am: |
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I know I'll get hammered for this..... But what the heck.
Then go.
Do Not Hit The Fly That Lands On The Tigers Head.
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john_becker
:::: Super User ::::
Username: john_becker
Post Number: 1501
Registered: 05-2005
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, 23 July, 2007 - 01:11 am: |
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Rwill, what evidence have you for the AT90S2313 chip being obsolete? The parts list in EPE says that Magenta have them, and looking at Atmel's site does not indicate it as obsolete as far as I can see. Please back up your accusations with facts.
J |
rwill19050
Just joined
Username: rwill19050
Post Number: 3
Registered: 07-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, 23 July, 2007 - 09:03 am: |
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Have you tried to source one yet then, from anywhere?
Have you actually got one from Magenta?
I would be please to know I am wrong..... |
rwill19050
Just joined
Username: rwill19050
Post Number: 4
Registered: 07-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, 23 July, 2007 - 09:05 am: |
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I would be please to know I am wrong...???
I would be pleased to know I am wrong...} |
arw
Board Administrator
Username: arw
Post Number: 475
Registered: 04-2005
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, 23 July, 2007 - 10:32 am: |
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The EPE Chat Zone is a self help forum designed to promote an interest in electronics. It is not an official line of contact with EPE Editorial Staff, and the same applies to the personal messaging system of this forum which is not intended to contact or abuse Editorial staff.
More information is in the Acceptable Use Policy which I have posted here:
http://www.chatzones.co.uk/discus/messages/13/13.html?1133364201
For a personal response please address any enquiries to the appropriate contact address which is here:
http://www.epemag.wimborne.co.uk/contact.html
Thanks,
-- Alan Winstanley
EPE Online Editor
ARW
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gordon
Frequent Contributor
Username: gordon
Post Number: 275
Registered: 05-2005
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, 23 July, 2007 - 10:38 am: |
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That IC doesn't seem to be available from the regular suppliers, but it is still listed by these 2 suppliers,
http://www.futurlec.com/cgi-bin/search/search.cgi
http://www.donberg.ie/search/search.pl?query=AT90S2313&wordflag=and&page=0&maxlines=100
Atmel say the chip is not for new designs, but it should still be available for a while yet.
I guess that is due to the pace of electronic component development, there is always a better/faster/cheaper chip around the corner, when it comes to microcontrollers. |
rwill19050
Just joined
Username: rwill19050
Post Number: 5
Registered: 07-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, 23 July, 2007 - 10:49 am: |
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Thanks for that Gordon.
Practical help at last.
Had a look at the sites, the Irish one, horrendous price including delivery (18.60 euro's), the American one is sensible (price and delivery $7-20)
Magenta have now contacted me to say they are trying to get a price and delivery of the AT90S2313 and will get back later. |
echase
Member
Username: echase
Post Number: 6
Registered: 07-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, 23 July, 2007 - 02:24 pm: |
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Fair comment about the HEX. I want the C code for the recent energy meter but EPE only list the HEX.
(Message edited by echase on 23 July, 2007) |
rwill19050
Member
Username: rwill19050
Post Number: 6
Registered: 07-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, 24 July, 2007 - 10:04 am: |
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Managed to get AT90S2313 from America.
Bought 2, just in case.
When I get them, and if I can program them without 'killing' them, there will be one spare available to anyone who wants it.
At cost to me only, free program installed 
They cost me $14-75 cents delivered (American dollars)
That equates to about £7-25ish, so the unit will cost £3-50 to you.
I'll post here to let you know how and if.......
Also, had a message from the Editorial dept. Seems the 're-hashed' projects are part of the mag make up, always have been, finance thing. Fair comment, I stand corrected.  |
rwill19050
Member
Username: rwill19050
Post Number: 7
Registered: 07-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, 24 July, 2007 - 02:01 pm: |
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echase, Appliance Energy Meter, look at SiliconChip Magazine August 2004. http://www.siliconchip.com.au/cms/menu_1691/start_140/section_articles/section.html
You can buy the issue online for $8-80 Australian dollars (I did the same to get all the coding files for the RFID Module), I'm now able to 'play' with the program to suite my specific project. |
pwillard
Frequent Contributor
Username: pwillard
Post Number: 64
Registered: 05-2005
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, 09 August, 2007 - 04:40 am: |
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The chip is literally identical to the ATMEL ATTINY2313 which is still very much available. Maybe that's why the original is not recommended for new designs. FYI: I've even accidently loaded code compiled for a particular AVR chip into a different model chip and the code still worked as expected.
Atmel has made it clear that the ATTINY2313 is the successor part to the AT90S2313. |
741
Frequent Contributor
Username: 741
Post Number: 60
Registered: 08-2005
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, 09 August, 2007 - 10:12 pm: |
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rwill,
I am curious to know more about futurlec:
Were there any hidden charges, or was it "as advertised ?"
They seem to have some hard to get parts at reasonable cost.
P.S.
----
This question is because (as I complained in a recent post), I have had to pay a
hidden charge to UPS in the UK for a "dispersal charge" on an order from DigiKey
in the U.S.
This is basically what U.P.S. charge for "lending" you (the poor, innocent customer) the VAT.
That is, UPS kindly pay your VAT to C&E.
Next they ring you up and hit you for minimum £11.
Then they ADD ON the VAT (£11 + £vat)
They say this £11 is because of the "loan"
P.P.S.
------
Digikey refunded the £11 when I complained. But it puts me off ordering there again. |
rwill19050
Member
Username: rwill19050
Post Number: 8
Registered: 07-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, 09 August, 2007 - 10:42 pm: |
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741, this is the link to where I got them from, no hidden extras and delivery quite quickly by air mail.
http://cgi.ebay.co.uk/AT90S2313-10PC-20-pin-DIP-AVR-Atmel-Microcontroller_W0QQitemZ220138388926QQihZ012QQcategoryZ50915QQssPageNameZWDVWQQrdZ1QQcmdZViewItem |
arw
Board Administrator
Username: arw
Post Number: 480
Registered: 04-2005
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, 09 August, 2007 - 11:13 pm: |
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Unfortunately the brokerage fees are nothing to do with Digikey (or any other overseas supplier) but everything to do with the courier trying to expedite your delivery, so full marks to Digikey if they refunded you for the cost that wasn't of their making to start with!
Digikey's prices are FOB (free on board) - i.e. ex warehouse, so all aspects of carriage, customs clearance, brokerage, duties, VAT are not included and must be budgeted for separately by the buyer.
ARW
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dave_squibb
Frequent Contributor
Username: dave_squibb
Post Number: 115
Registered: 04-2005
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, 10 August, 2007 - 09:07 am: |
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Which brings us back to the main point, why do articles published in a UK magazine rely on hard to find parts which must be imported from the USA?
If we are stuck with old SC articles perhaps EPE should purchase a stock of each obscure part and resell to the readers. |
terrym
Frequent Contributor
Username: terrym
Post Number: 508
Registered: 05-2005
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, 10 August, 2007 - 11:22 am: |
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Or list locally available substitutes. Having said that, I dont recall many of the SC projects requiring anything that couldnt be got from RS or Farnell, which is where they seem to get most of them from.
TM |
pwillard
Frequent Contributor
Username: pwillard
Post Number: 66
Registered: 05-2005
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, 11 August, 2007 - 06:25 am: |
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But in the case of older articles being republished... you could run the risk that the actual part number printed in the article is now obsolete. In this particular case, it's not intuitive to a reader that an ATTINY2313 can be used in place of an AT90S2313. On the other hand, a lot of us know by now that you can usually use a 2N3906 in place of a BC557 and visa versa and have the circuit still work as intended.
Being an American reading UK magazines poses a similar issue. It's not my best choice to consider buying from Farnell or RS when sourcing a part. Finding an EU type transistor for example, isn't always a simple task, considering that I might buy a PCB and have to adjust due to part footprint differences.
What I'm thinking is... maybe the SC articles could use a bit of a tweak before publishing to possibly catch this and make recommendations with an "editor's note". Of course, this really is the wrong place to discuss this so I'll stop here. |
eagre
Frequent Contributor
Username: eagre
Post Number: 161
Registered: 05-2005
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, 11 August, 2007 - 11:46 pm: |
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Like others here, I would recommend Futurlec for BC transistors, etc, for north American buyers. They are much more cost-effective than companies like RS that charge absurd shipping fees to the US (18 BP +). And, they respond to emails.
eagre |
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