I have made new version of the AIO PCB, with 4 inputs and 2 independent outputs. Firmware is also slightly different.
Advantages:
1. Two output channels are controlled independently, that is, they have their own separate relays. One input was sacrificed for this, 4 inputs are more than enough anyway.
2. Mute function does not touch calibration relays, it simply connects two outputs directly to ground
3. There are no mute clicks any more, since no DC is being cut
4. There is no more danger of burning relay driver with frequent muting.
5. Muted outputs are shorted to ground, eliminating any noise
6. Both outputs are muted during startup, there is no transient noise to be fed to one of the connected outputs.
Advantages:
1. Two output channels are controlled independently, that is, they have their own separate relays. One input was sacrificed for this, 4 inputs are more than enough anyway.
2. Mute function does not touch calibration relays, it simply connects two outputs directly to ground
3. There are no mute clicks any more, since no DC is being cut
4. There is no more danger of burning relay driver with frequent muting.
5. Muted outputs are shorted to ground, eliminating any noise
6. Both outputs are muted during startup, there is no transient noise to be fed to one of the connected outputs.
And I forgot another advantage:
7. PCBs accept 5LN01C (SOT23 package) as well as old 5LN01SP fets.
I have boards available with relays soldered in. I can also assemble them for you. PM me.
7. PCBs accept 5LN01C (SOT23 package) as well as old 5LN01SP fets.
I have boards available with relays soldered in. I can also assemble them for you. PM me.
going nuts with this. My allfonts.h file is in the folder....don't know what to do
In file included from C:\Documents and Settings\Família Oliveira\My Documents\Arduino\libraries\SSD1306Ascii\src/SSD1306AsciiWire.h:27:0,
from C:\Documents and Settings\FamÃ*lia Oliveira\My Documents\Arduino\libraries\VxD_OLED_4X2\VxD_OLED_4X2.ino:10:
C:\Documents and Settings\Família Oliveira\My Documents\Arduino\libraries\SSD1306Ascii\src/SSD1306Ascii.h:28:28: fatal error: fonts/allFonts.h: No such file or directory
#include "fonts/allFonts.h"
^
compilation terminated.
exit status 1
Error compiling for board Arduino Nano.
In file included from C:\Documents and Settings\Família Oliveira\My Documents\Arduino\libraries\SSD1306Ascii\src/SSD1306AsciiWire.h:27:0,
from C:\Documents and Settings\FamÃ*lia Oliveira\My Documents\Arduino\libraries\VxD_OLED_4X2\VxD_OLED_4X2.ino:10:
C:\Documents and Settings\Família Oliveira\My Documents\Arduino\libraries\SSD1306Ascii\src/SSD1306Ascii.h:28:28: fatal error: fonts/allFonts.h: No such file or directory
#include "fonts/allFonts.h"
^
compilation terminated.
exit status 1
Error compiling for board Arduino Nano.
Are you sure that allFonts.h is also in the "fonts" folder and not just next to the source code that you compile?
solved one...another
In file included from C:\Documents and Settings\Família Oliveira\My Documents\Arduino\libraries\SSD1306Ascii\src/SSD1306Ascii.h:28:0,
from C:\Documents and Settings\Família Oliveira\My Documents\Arduino\libraries\SSD1306Ascii\src/SSD1306AsciiWire.h:27,
from C:\VxD_OLED_4X2\VxD_OLED_4X2.ino:10:
C:\Documents and Settings\Família Oliveira\My Documents\Arduino\libraries\SSD1306Ascii\src/fonts/allFonts.h:44:66: fatal error: Adafruit5x7.h: No such file or directory
#include "Adafruit5x7.h" // Font from Adafruit GFX library
In file included from C:\Documents and Settings\Família Oliveira\My Documents\Arduino\libraries\SSD1306Ascii\src/SSD1306Ascii.h:28:0,
from C:\Documents and Settings\Família Oliveira\My Documents\Arduino\libraries\SSD1306Ascii\src/SSD1306AsciiWire.h:27,
from C:\VxD_OLED_4X2\VxD_OLED_4X2.ino:10:
C:\Documents and Settings\Família Oliveira\My Documents\Arduino\libraries\SSD1306Ascii\src/fonts/allFonts.h:44:66: fatal error: Adafruit5x7.h: No such file or directory
#include "Adafruit5x7.h" // Font from Adafruit GFX library
my ldr will be feeding a Ba3 preamp. The Ba3 has an input impedance of 47k. The firmware tells us to dont go below 100k. What should i do?
@zdr:
I am currently building a project that uses a few buttons, a rotary encoder, and an Arduino to implement a preamp type of interface. Your case/enclosure looks very nice. How did you have it made (or make it yourself)? I am trying to figure out how to proceed with putting my project in a case. Thanks for any tips you can provide.
I am currently building a project that uses a few buttons, a rotary encoder, and an Arduino to implement a preamp type of interface. Your case/enclosure looks very nice. How did you have it made (or make it yourself)? I am trying to figure out how to proceed with putting my project in a case. Thanks for any tips you can provide.
Not zdr but it his chassis looks very much like the stock Chinese one designed for PGA preamp boards like this one, available from ebay, aliexpress, taobao etc.
Full aluminum Case /Box for weiliang PGA2310 PGA2311 CS3310 Preamp | eBay
If you can create a CAD file for the front panel then it is possible to deal direct with the Chinese and have them machine a standard chassis for you for a very reasonable price (even though they think it is expensive 65 Yuan), the delivery cost can be quite high though. I have done this myself and the quality was very good.
Modushop does the same with their chassis, it can be quite expensive but the work is excellent.
Front Panel Express does a similar sort of thing.
Full aluminum Case /Box for weiliang PGA2310 PGA2311 CS3310 Preamp | eBay
If you can create a CAD file for the front panel then it is possible to deal direct with the Chinese and have them machine a standard chassis for you for a very reasonable price (even though they think it is expensive 65 Yuan), the delivery cost can be quite high though. I have done this myself and the quality was very good.
Modushop does the same with their chassis, it can be quite expensive but the work is excellent.
Front Panel Express does a similar sort of thing.
I am feeding GC with 50K input impedance. I configured LDR at 100K, works like a charm.
Few pcbs with relays still left, if anyone needs them. I have also one original assembled controller pcb with 4x2 IO pcb for sale, since I am replacing it with all-in-one.