Yet another Volume controlers and source selections - Page 34 - diyAudio
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Old 7th October 2010, 02:40 PM   #331
danzup is offline danzup  Romania
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Quote:
Originally Posted by FarmTech View Post
Playing with a 7 band Graphic Equalizer for Lcd
(MSGEQ7 7-band Graphic Equalizer IC)
Datasheet
here is a Video of the result so far
That IC is a great discovery !!!!
Keep on the good job !
I like`it !
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There are not better tube than 6P3S and 6N2P for my ears !
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Old 8th October 2010, 12:26 AM   #332
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Quote:
Originally Posted by danzup View Post
That IC is a great discovery !!!!
Keep on the good job !
I like`it !
Yep it a nice chip to use

Allmost done with firmware now , hope you like it
All in 1 version for LCD Version only (be cuz the Vu Meter) R/2R - Shunt - tube or solid state peramp (Tube = warming up tubes 60 sec)
all can be setup i menu

Have a nice weekend

Kim

Last edited by FarmTech; 8th October 2010 at 12:28 AM. Reason: spelling what else :)
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Old 8th October 2010, 02:38 PM   #333
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About Ir Volume Control Ver.1.6(c) Danzup(farmtech Special) R/2R-shunt Lcd Version

Program is done now, I sent it to Danzup so he can test it on the "real hardware"
When Danzup report back I publish the files for this

Have a nice one

Kim
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Old 8th October 2010, 07:54 PM   #334
Leon08 is offline Leon08  Germany
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Here is my latest version of fimware for my preamp and it also works with any Elector pga 2311 preamp as published in 4/2004 issue of this magazine.So far it works fine and does not hang anymore, but I was not able to receive any sony rc code. I,m sure, this time I made anything right, so maybe this decoder is wrong or something else.Anyway I can't do anything more.
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File Type: zip preamp_mod4_3.zip (108.4 KB, 150 views)
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Old 9th October 2010, 01:32 PM   #335
Leon08 is offline Leon08  Germany
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Now I know why it did not work.I used wrong receiver IC.For Sony you need one for 38 or 40 kHz and RC5 works with 36kHz.So this was the problem.
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Old 10th October 2010, 09:51 AM   #336
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Anyone use VFD display on Danzup´s controller ?
If so I add VFD display luminance 100% 75% 50% 25% works same way as backlight
I did a test on VFD display FUBA M162MD05GJ and it works fine

if you use it pls add info about what model or better link to datasheet
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Old 11th October 2010, 06:40 PM   #337
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As you already know, I had great luck to be beta-tester of FarmTech's firmware. I'm not expert, I'm just common user, so I tried to do my part of deal the best I could.
I must say it was easy. FarmTech made brilliant firmware. Everything he sent to me worked without problems. I tried to outwit his firmware, but it was impossible.
Also, I work like . I don't have much free time for my hobby, so I had to steal time from my job. FarmTech wrote program for VU meter on LCD. It looks wonderfull, but you must have extra hardware for this feature. He gave schematic for half-wave rectifier in post #302. I made PCB.
Attached Images
File Type: jpg LM358 pcb.jpg (60.1 KB, 728 views)
File Type: jpg LM358 top.jpg (97.1 KB, 725 views)
Attached Files
File Type: pdf LM358 pcb.pdf (75.6 KB, 96 views)
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Old 11th October 2010, 06:49 PM   #338
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My problem is living in small city without electronic store. I must go to Belgrade even for a single resistor. I hadn't LM358, but I had LM324, so I made PCB. I also didn't have BAT42, so I soldered 1N4148.
Attached Images
File Type: jpg LM324 top.jpg (104.2 KB, 704 views)
File Type: jpg LM324 pcb.jpg (67.0 KB, 682 views)
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File Type: pdf LM324 pcb.pdf (83.8 KB, 64 views)
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Old 11th October 2010, 06:54 PM   #339
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And the final result looks like this.
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File Type: jpg IMG_2080.jpg (123.2 KB, 649 views)
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Old 11th October 2010, 07:29 PM   #340
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I still use my first PCBs from page 9 of this thread, but for the future I need slim and compact PCB for controller. I'm too old to use SMD, so I made new PCB. It also uses through hole components. I must warn you that this is amateur project, it's not optimised, there are no gerber files, it's just for DIY use. Simple, single sided.
Attached Images
File Type: jpg M16 R2R pcb.jpg (209.0 KB, 252 views)
File Type: jpg M16 R2R top.jpg (134.8 KB, 295 views)
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File Type: pdf M16 R2R pcb 150dpi.pdf (146.9 KB, 161 views)
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