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Old 8th December 2010, 05:45 PM   #1
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Join Date: Sep 2010
Location: Leuven
Default Someone with experience with TTPSU

Hi guys ,

is there someone who has build this one before ?

http://www.norre.dk/TTPSU/TTPSU.html#Input%20transformer/Power%20supply|outline

greetings Matthias
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Old 10th December 2010, 12:57 PM   #2
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Nobody build this before ?
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Old 13th December 2010, 02:12 PM   #3
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I was concidering build this too. I can find the micro, but not the display. I also have no way to program the micro. I wonder if there have been any updates? We may just have to email Mr. Norre to ask?
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Old 15th December 2010, 08:10 PM   #4
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Quote:
Originally Posted by cygnus x1 View Post
I was concidering build this too. I can find the micro, but not the display. I also have no way to program the micro. I wonder if there have been any updates? We may just have to email Mr. Norre to ask?
Hi cygnus x1, I will send him an email, will post something when I now more .
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Old 16th December 2010, 02:52 PM   #5
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This is what I got from Johnny Norre about the LCD :

"
The display code is rather "relaxed", so it should work with any KS0066U ot HD44780 based display, this covers almost all character/non-graphic 16x1 displays on the marked. A 20x1 display can also be used, but the last 4 characters will of cause not be used by the code. "

and about the IC :


iCA01 USB Microchip PIC Programmer Set (ICSP & Adapter) on eBay (end time 21-Dec-10 09:34:58 GMT)


this is the best way to program one.


The updates are all on the website :http://www.norre.dk/TTPSU/TTPSU.html


The only thing is the fact that the circuit could have some problems with AC Noise





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Old 17th December 2010, 07:10 PM   #6
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Thanks for the update. It looks like the mpu and display are available from Digikey. The data sheet shows how to program with two lines from a pc parallel port and a 5/12 Vdc ps. I also found a nice little board design from David Tate and Chuck Hellebuyck's Electronic Products. I think I will give that a try. I may ask circuitscc to build me a board.
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