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#141148 - 01/10/2004 17:07 Re: I2C Fan Controller for Empeg [Re: mtempsch]
robricc
carpal tunnel

Registered: 30/10/2000
Posts: 4931
Loc: New Jersey, USA
PM me if you want me to do that for you.

Happy Birthday by the way.
_________________________
-Rob Riccardelli
80GB 16MB MK2 090000736

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#141149 - 01/10/2004 17:24 Re: I2C Fan Controller for Empeg [Re: robricc]
mtempsch
pooh-bah

Registered: 02/06/2000
Posts: 1996
Loc: Gothenburg, Sweden
Thanks & thanks!

PM coming shortly.
_________________________
/Michael

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#141150 - 01/10/2004 18:10 Re: I2C Fan Controller for Empeg [Re: benjammin]
schofiel
carpal tunnel

Registered: 25/06/1999
Posts: 2993
Loc: Wareham, Dorset, UK
I'd really like to get one of these, but you don't accept PayPal and I'm not in the US. Cheques don't exist in Europe any more. Can we swap for goods?
_________________________
One of the few remaining Mk1 owners... #00015

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#141151 - 01/10/2004 18:32 Re: I2C Fan Controller for Empeg [Re: schofiel]
robricc
carpal tunnel

Registered: 30/10/2000
Posts: 4931
Loc: New Jersey, USA
Rob, you know I can send you stuff...
_________________________
-Rob Riccardelli
80GB 16MB MK2 090000736

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#141152 - 01/10/2004 19:02 Re: I2C Fan Controller for Empeg [Re: robricc]
mdavey
enthusiast

Registered: 06/03/2003
Posts: 269
Loc: Wellingborough, UK
Rob,

Actually, perhaps a bulk US to Europe order could be placed and then once received, distributed within Europe?

I would be happy to place the bulk order and take responsibility for distribution (I'm in the UK). I might even be tempted to place an RS components order and offer both bare boards and board+components kits.
_________________________
Michael
Ex-owner of stolen empeg #030102741

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#141153 - 01/10/2004 19:36 Re: I2C Fan Controller for Empeg [Re: mtempsch]
JBjorgen
carpal tunnel

Registered: 19/01/2002
Posts: 3584
Loc: Columbus, OH
Happy Birthday Michael!
_________________________
~ John

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#141154 - 05/10/2004 11:52 Re: I2C Fan Controller for Empeg [Re: mtempsch]
benjammin
member

Registered: 11/08/2002
Posts: 188
Loc: Champaign, IL
I'm working on it.. I don't know right yet. Hopefully I'll have something soon.

As for those outside of USA, Do your banks offer online billpay? Mine does and I can set up anyone to receive a bank MO (no cost in terms of the check - can't say for the service - my bank offers it free). I paid a guy for a Logic Analyzer via bank billpay.

Just a thought..

-Ben

p.s. Sorry I didn't see these sooner. Please email me directly - I'll get back to you much much much faster. bkamen AT benjammin DOT net.

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#141155 - 05/10/2004 16:11 Re: I2C Fan Controller for Empeg [Re: benjammin]
mtempsch
pooh-bah

Registered: 02/06/2000
Posts: 1996
Loc: Gothenburg, Sweden
Can only speak for myself, but yes, I do pay all my bills online (ie all the stuff from inside Sweden - rent, CCs, utilities etc - some of the bills even arrive in electronic format directly in the online bank), and can freely push money to others accounts (within Sweden), but an international money transfer they charge extra for. Within EU they typically charge €3 on the sending end - receiving bank also charges a fee and you have the option to pay for that from the sending end, to ensure the full amount actually reaches the recipient..

For non-EU money orders my bank charges ~$US 20 IIRC... and IME the receiving bank takes a chunk as well.

As it is, I'll be buying/paying through robricc.
_________________________
/Michael

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#141156 - 05/10/2004 20:59 Re: I2C Fan Controller for Empeg [Re: mtempsch]
mdavey
enthusiast

Registered: 06/03/2003
Posts: 269
Loc: Wellingborough, UK
Okay, I think there are enough people in Europe that are interested in this, so I am going to order 10 or 20. I intend to make them available both as bare boards and with parts at cost.
_________________________
Michael
Ex-owner of stolen empeg #030102741

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#141157 - 06/10/2004 13:04 Re: I2C Fan Controller for Empeg [Re: mdavey]
benjammin
member

Registered: 11/08/2002
Posts: 188
Loc: Champaign, IL
Quote:
Okay, I think there are enough people in Europe that are interested in this, so I am going to order 10 or 20. I intend to make them available both as bare boards and with parts at cost.


I emailed you back... wow - all these people wanting boards... who knew? "build them and they will buy"... hahaha..

thanks guys!

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#141158 - 06/10/2004 18:11 Re: I2C Fan Controller for Empeg [Re: benjammin]
StigOE
addict

Registered: 27/10/2002
Posts: 568
Replying to an old post...

Quote:
genixia:
Are there suitable fans with tach output?

benjammin:
supposedly... you can get just about any fan with a tach output from most companies...



It's not exactly plenty of slim 40mm fans with speed sensor... I found two, but one was too noisy. This was only looking in the Farnell catalogue though. Did find another one that might fit, but it was 25mm only, so would probably need some modification to install it...

Checked this since I also requested two MAX6651 when I sent the request for the DS1721...

Genixia, still up for being bribed into adding PWM when I manage to make some boards for the 6651..?

Stig

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#141159 - 07/10/2004 07:29 Re: I2C Fan Controller for Empeg [Re: StigOE]
StigOE
addict

Registered: 27/10/2002
Posts: 568
And now I'm replying to my own post...

After I had read the datasheet a bit better and also rebootet my brain , I don't know if there is much point in making the board with the 6651... That chip is only a fan controller where you set the speed and the chip keeps the fan at the preset speed. It doesn't contain a temperature sensor, so either it would need to rely on the built-in temperature sensor in the Empeg or it would need an external temperature sensor. The fan wouldn't be PWM controlled either, it would be voltage controlled, as PWM and tach signals doesn't mix very well...

And since Ben has already made boards with the temperature controller, so unless people want this type of board and someone makes the patch for Hijack, I'll just stop this project. But if someone wants some boards, it wouldn't take long to do the layout and make some boards, since I can make them at home...

Stig

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#141160 - 21/10/2004 15:05 Re: I2C Fan Controller for Empeg [Re: StigOE]
benjammin
member

Registered: 11/08/2002
Posts: 188
Loc: Champaign, IL
You very funny man..


Also, I apologize, I completely forgot about the 6651 - I look at it too and saw all the busy-work involved... but I never mentioned it here.

Oops. Kick me later.

-Ben
_________________________
Empeg Mk2 in fabulous green! Green Face, Green BackLit Buttons... GREEN...

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#141161 - 21/10/2004 17:27 Re: I2C Fan Controller for Empeg [Re: benjammin]
loren
carpal tunnel

Registered: 23/08/2000
Posts: 3826
Loc: SLC, UT, USA
Okay, just put in an order for one of these guys. So who all has done this install? What fan did you use? How did you mount it? Photos?!
_________________________
|| loren ||

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#141162 - 21/10/2004 20:28 Re: I2C Fan Controller for Empeg [Re: loren]
mdavey
enthusiast

Registered: 06/03/2003
Posts: 269
Loc: Wellingborough, UK
Quote:
Okay, just put in an order for one of these guys. So who all has done this install?


benjamin and mlord, I believe.

Quote:
What fan did you use?


general parts list - choose the thinnest 40mm x 40mm fan you can find for a good price. I'll be making some available for those in Europe in the next couple of weeks.

Quote:
How did you mount it?

Best to use some plastic rivets such as those listed on the parts guide. Check the diameter of the holes in your fan - if 3.1mm or 3.2mm the exact digikey/farnell/richco codes are fine. If 3.6 or 3.7mm, use Richco SR-3570B or SR-3580B. If 3.5mm, get a 3.6, 3.65 or 3.7mm drill and carefully enlarge the holes, then use the Richco codes I've just given.

Other BBS members have simply bedded the fan down onto a ring of silicone filler (the sort you use to seal bath-to-tile joins).

If you go the plastic rivet route, you may also want to use some small fibre or rubber washers from your local hardware store - between fan and case to reduce vibration noise a little. Either the flat or doughnut shaped washers are fine.
_________________________
Michael
Ex-owner of stolen empeg #030102741

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#141163 - 21/10/2004 21:17 Re: I2C Fan Controller for Empeg [Re: mdavey]
loren
carpal tunnel

Registered: 23/08/2000
Posts: 3826
Loc: SLC, UT, USA
Only two people? I thought there were tons of orders for the board.

Thanks for the pointers. I'll be doing it as soon as I get the board.
_________________________
|| loren ||

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#141164 - 22/10/2004 13:37 Re: I2C Fan Controller for Empeg [Re: loren]
mdavey
enthusiast

Registered: 06/03/2003
Posts: 269
Loc: Wellingborough, UK
Quote:
Only two people?

Only two people of which I know.
_________________________
Michael
Ex-owner of stolen empeg #030102741

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#141165 - 23/10/2004 14:49 Re: I2C Fan Controller for Empeg [Re: loren]
benjammin
member

Registered: 11/08/2002
Posts: 188
Loc: Champaign, IL
Don't panic on the fan!

I think I got mine here:

http://www.mpja.com/viewallpict.asp?dept=48&main=46


4x40 plastic screws work fine and I got mine at the local hardware store!

I have pics on my website in the Projects section...

If everyone needs, I'll take some hi-rez ones with my better digital camera and make them available.

-Ben


Edited by benjammin (23/10/2004 17:19)

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#141166 - 23/10/2004 22:16 Re: I2C Fan Controller for Empeg [Re: benjammin]
loren
carpal tunnel

Registered: 23/08/2000
Posts: 3826
Loc: SLC, UT, USA
So the fan can be a 12v OR a 5v?
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|| loren ||

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#141167 - 03/11/2004 03:25 Re: I2C Fan Controller for Empeg [Re: loren]
loren
carpal tunnel

Registered: 23/08/2000
Posts: 3826
Loc: SLC, UT, USA
I got the board... nice work!

Now, could someone who has it installed and working post photos of the install? I'd really appreciate it!

Here's the instructions I have from Ben so far:

V+ is +12
GND is Ground.
Fan + and Fan - are the plus/minus leads from the fan. (12v Fan, of course)
SDA and SCL are the "Serial Clock" and "Serial Data" lines from the processor.
I have a photo of the 2 points in my Projects section... the second to last is
"dark" with highlight areas around the resistors, but it s doesn's say which is
SCL and which is SDA;

SDA can be found on the RIGHT HAND END of the resistor marked 1003 nearest
the top left corner of the strongarm (display board towards you).

SCL can be found on the TOP END of the resistor marked 1003 directly to the
right of the centre mounting hole.
_________________________
|| loren ||

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#141168 - 03/11/2004 08:46 Re: I2C Fan Controller for Empeg [Re: loren]
mdavey
enthusiast

Registered: 06/03/2003
Posts: 269
Loc: Wellingborough, UK
12v can be found on both pins of the through-hole pad marked Fan, however I'm not sure whether this is regulated or unregulated 12v nor whether the controller is fussy about it. If this is suitable, I'd suggest soldering a 2-pin header through the holes, then soldering the 12v line to a jumper and plugging the jumper onto the header. I don't know of a good place to get GND (that is, so it is easy to undo). You could splice one of the cables or solder onto the back of one of the sockets (perhaps the serial D socket), but most seem to simply opt for soldering a wire to the pad ("collar") around one of the PCB screws.

I thought there was a 2-pin through-hole pad marked I2C or IIC towards one corner of the MK2A board somewhere. Maybe I'm wrong and there is only an IIS pad, not an I2C pad as well.

It might be useful to create a new album on riocar.org with hi-res photos of the front and back of each PCB board including the add-on boards - that would have certainly helped with the creation of the memory manual.

[Edit: fix spelling and clarify]


Edited by mdavey (03/11/2004 09:10)

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#141169 - 04/11/2004 02:17 Re: I2C Fan Controller for Empeg [Re: mdavey]
loren
carpal tunnel

Registered: 23/08/2000
Posts: 3826
Loc: SLC, UT, USA
So this fan should work perfect then eh?

I'll try and take some photos this week and ask a few more questions before I go soldering willy nilly. Thanks!
_________________________
|| loren ||

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#141170 - 04/11/2004 09:21 Re: I2C Fan Controller for Empeg [Re: loren]
mdavey
enthusiast

Registered: 06/03/2003
Posts: 269
Loc: Wellingborough, UK
Check the depth of the fan and the noise rating. I'd suggest a fan with a noise rating of 20-26dB(A). Much less than 20dB(A) won't be worth the probable extra cost unless you are going to modify the shape of the holes in the lid. Beyond about 24dB(A) will be increasingly noticeable in a quiet room or with the engine off. You'll almost certainly need to modify the drive bay if you use a 20mm deep fan. 12mm or 10mm depth will be okay. 6mm deep fans tend to be a bit quieter but have less surface area so can't push quite as much air around.
_________________________
Michael
Ex-owner of stolen empeg #030102741

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#141171 - 04/11/2004 16:13 Re: I2C Fan Controller for Empeg [Re: loren]
tfabris
carpal tunnel

Registered: 20/12/1999
Posts: 31594
Loc: Seattle, WA
Quote:
So this fan should work perfect then eh?

Negative, those are 80mm fans. You want 40mm fans.

More importantly, you want them as thin as possible. Finding ones that are thin enough so that you can get the lid on and off the player without removing the display board each time, is very difficult.

Most are 10mm thick, and although you could make that fit, you would need to unscrew the display board each time you removed the player lid. BIG PAIN. There are fans that are 5-6mm thick, those are ideal if you can find them.
_________________________
Tony Fabris

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#141172 - 04/11/2004 17:45 Re: I2C Fan Controller for Empeg [Re: tfabris]
loren
carpal tunnel

Registered: 23/08/2000
Posts: 3826
Loc: SLC, UT, USA
Whoa, that's not the link i meant to post. I meant either this or this.
_________________________
|| loren ||

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#141173 - 04/11/2004 17:55 Re: I2C Fan Controller for Empeg [Re: loren]
tfabris
carpal tunnel

Registered: 20/12/1999
Posts: 31594
Loc: Seattle, WA
Ah, there you go.
_________________________
Tony Fabris

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#141174 - 04/11/2004 22:07 Re: I2C Fan Controller for Empeg [Re: tfabris]
loren
carpal tunnel

Registered: 23/08/2000
Posts: 3826
Loc: SLC, UT, USA
K, I ordered a few.
_________________________
|| loren ||

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#141175 - 08/11/2004 19:59 Re: I2C Fan Controller for Empeg [Re: loren]
loren
carpal tunnel

Registered: 23/08/2000
Posts: 3826
Loc: SLC, UT, USA
Okay. Got 'em. There's a third wire which, according to this option and this option, means that it they do have "BY IMPEDANCE WITH THIRD WIRE SPEED SENSOR (TACH OUTPUT)" (copied from their site). Interesting? I dunno.... can you guys do anything with that? I'm guess I can just cut that wire off...

So. I'm going to go take the empeg apart and take some photos of where I gather I should be soldering things in before I go ahead and do it so I can make sure I'm doing it right. Be back in a few.
_________________________
|| loren ||

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#141176 - 08/11/2004 20:16 Re: I2C Fan Controller for Empeg [Re: loren]
mdavey
enthusiast

Registered: 06/03/2003
Posts: 269
Loc: Wellingborough, UK
Quote:
can you guys do anything with that? I'm guess I can just cut that wire off...


Ben's circuit doesn't use the tach wire but someone may well come along with an add-on circuit at some point that can use the tach wire (StigOE was thinking about doing something with the Maxim/Dallas MAX 6650 / 6651 chips but probably won't have anything ready to offer until next year).

Don't cut it off - get some heat-shrink pvc tubing and pop over the end of the cable to eliminate any chance of it touching something it shouldn't.
_________________________
Michael
Ex-owner of stolen empeg #030102741

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#141177 - 08/11/2004 21:32 Re: I2C Fan Controller for Empeg [Re: mdavey]
loren
carpal tunnel

Registered: 23/08/2000
Posts: 3826
Loc: SLC, UT, USA
ignore, image storage post =]


Attachments
240026-SCL_SDA_Small.jpg (494 downloads)

_________________________
|| loren ||

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