Dangerous Soldering Iron driver V1.5(based on Arhi's gen3)

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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby arhi » Wed Jan 18, 2012 11:25 am

2550 is so versatile that every time I purchase them I always order 20 or more :D ... it used to be my #1 choice for 28pin dip mcu for years ... as if you want 5V mcu in 28 pin package 18f2550 is most bang for the buck. There are few other 5V devices in that case but all are very poor wrt hw inside and wrt amount of flash they have ... There are some "better" device in 16bit (and now 32bit too) segment of mchip but they are all 3V only (I might have missed some but..) .. and of course, there's always 18F2553 (Arakis reminded me of that one few days ago) that's identical as 2550 but with 12bit ADC :)
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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby ginpb » Fri Jan 20, 2012 5:19 am

arakis, how did go with the pcb?
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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby arhi » Fri Jan 20, 2012 8:20 am

Guillermo, I suggest you don't waste time with DP v1.0 as you should have already received the 3.1.4 version of mine board that is tested, works with both HAKKO and Weller, Solomon and has firmware that works. DP v1.0 is not tested, is known to have few bugs and there's no firmware for it.... So why waste time with it when you have the pcb that works (I assume it arrived to Italy by now since the post office said it will definitely left the country on January 9th the latest)?

DP version 1.5 is compatible with mine 3.1.4 (schematic is identical) so the firmware also works 1/1 and is also tested and works... (kudos to Filip for making a 100% trough hole version on 8x8cm board with separated grounds and all in all GREAT PCB design, I like the DP 1.5 version way more then mine 3.1.4)
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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby ginpb » Fri Jan 20, 2012 8:27 am

arhi, thanks for send me the board. Until now, nothing, probably will arrive next week.
Thanks a lot.
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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby arhi » Fri Jan 20, 2012 9:09 am

well as I mentioned we celebrate Xmas (and NY) on Julian calendar (since Serbian orthodox church never accepted Gregorian calendar) so the January, especially first half, is pretty hectic here.. 3 boards went to usa, I know one already arrived, dunno about other two....
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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby xebbmw » Fri Jan 20, 2012 10:49 pm

I have some 18f2620 from a previous project. It looks like are pin compatible with 18f2550, I guess I should be able to use them as replacement. Maybe the firmware should be recompiled.
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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby ian » Sat Jan 21, 2012 2:56 am

Firmware will most definitely have to be recompiled, and probably several configuration fuses changed to match the new chip.
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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby Loki » Sun Jan 22, 2012 6:12 pm

Soldering home made PCB seems to be pretty hard with current (v1.5) layout.
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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby ian » Mon Jan 23, 2012 2:35 am

Yes, the new layout is not really single-sided or homemade board friendly. The added complexity was enough that we needed to use a 2-layer PCB.
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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby arakis » Mon Jan 23, 2012 2:41 am

there was just no way to fit everything on a 8x8 board and keep it single sided, I mean it could have been done, the ground pour would have required lots of jumpers...and it would have looked real ugly....also we wouldn't have been able to add grounds below components or separate them as we did in V1.5.
best regards FIlip.
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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby Loki » Mon Jan 23, 2012 6:54 am

Making 2-sided board is not so hard. Soldering elements, especially IC`s on the top side is quite tricky. I appreciate the amount of work and effords putted to design this board.
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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby arhi » Mon Jan 23, 2012 8:15 am

Guy's I'm sure these boards will be in PCB DRAWER in few days, why would you bother to etch them at home :D when you can get them from DP professionally made :D
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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby arakis » Mon Jan 23, 2012 10:10 am

Loki wrote:Making 2-sided board is not so hard. Soldering elements, especially IC`s on the top side is quite tricky. I appreciate the amount of work and effords putted to design this board.


If you are building them at home keep in mind that the clearances were not optimized for home etching, I thing 10/10mil is the DRC I used... Also you can solder on anything on the top layer by using solder-paste, and a hot-air, but doing it with a soldering iron I just don see it happening, especially CAPs, inductor, or the large SCREW headers
best regards FIlip.
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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby dinoslmn » Tue Feb 28, 2012 2:55 am

Hi,
Very interesting project.
Any news when finished PCBs will be on stock ?

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Re: Dangerous Soldering Iron driver V1.5(based on Arhi's gen

Postby ian » Tue Feb 28, 2012 2:56 am

They have not arrived yet, but I assume they shipped. I would guess in the next few weeks.
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