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by 0xFF
Wed Jan 07, 2015 2:28 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: STICKY: The I2S sound thread.
Replies: 926
Views: 474780

Re: I2S sound: Anyone got it running? (answer is yes!)

I'm not expert, but... The schematics looks ok - each I2S signal should be separated in coaxial cable (to prevent cross-talk and reduce EMI). The problem is how to build such a cable. Do not use Ethernet cable (shielded or unshielded). This type of cable is relying on the balanced line twisted pair ...
by 0xFF
Mon Jan 05, 2015 9:58 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: STICKY: The I2S sound thread.
Replies: 926
Views: 474780

Re: I2S sound: Anyone got it running? (answer is yes!)

I tried successfully those DACs: http://www.ebay.com/itm/DAC-24192-ABR-I2S-Input-DAC-Ultra-Low-Noise-Regulation-Low-Phase-Noise-Clock-/331262327691 http://www.ebay.com/itm/DAC-NOS1-Non-Over-Sampling-DAC-TDA1543T-I2S-Input-/331064227245 https://www.hifiberry.com/dac Never tried beyond 24/192. 32 bit ...
by 0xFF
Mon Jan 05, 2015 7:11 pm
Forum: Beginners
Topic: External HDD
Replies: 13
Views: 2028

Re: External HDD

I use 2.5" 1TB HDD (WDC WD10 JPVT-00A1YT0) connected to old B model RPi (256MB RAM).
Just serial-ATA-USB bridge, no hub.
Works without problem, but I have bypassed poly fuses for USB bus and +5V line.
by 0xFF
Mon Jan 05, 2015 6:51 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: STICKY: The I2S sound thread.
Replies: 926
Views: 474780

Re: I2S sound: Anyone got it running? (answer is yes!)

Did I understand correctly that the RPi B+ is capable of 32bit / 384kHz? AFAIK Linux audio driver is limited to 192kHz. I'm getting dizzy from reading about RPi i2s audio, haha. What layout do I use? DAC - RPi: Pin 1 : SDATA - pin 40 data Pin 3 : LRCK - pin 35 LRCK Pin 5 : SCLK - pin 12 BCK ??? Pin...
by 0xFF
Sat Jan 03, 2015 10:04 pm
Forum: Troubleshooting
Topic: 20x2 I2C OLED character display and XBMC = nothing (solved)
Replies: 47
Views: 10893

Re: 20x2 I2C OLED character display and XBMC = nothing (solv

Run LCDd in foreground to see debug info

Code: Select all

LCDd -f
Hope that helps.
by 0xFF
Thu Dec 18, 2014 7:44 am
Forum: Troubleshooting
Topic: 20x2 I2C OLED character display and XBMC = nothing (solved)
Replies: 47
Views: 10893

Re: 20x2 I2C OLED character display and XBMC = nothing (solv

I pushed patched hd44780.so driver to my github repo.
by 0xFF
Sat Nov 08, 2014 12:15 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Class-D I2S amplifier
Replies: 18
Views: 6230

Re: Class-D I2S amplifier

Here is thread about RPi's I2S interface capabilities: http://www.raspberrypi.org/forums/viewtopic.php?t=8496
AFAIK you need external masterclock.
by 0xFF
Tue Oct 28, 2014 8:39 pm
Forum: HATs and other add-ons
Topic: Buy DAC Jack
Replies: 5
Views: 1531

Re: Buy DAC Jack

Hi ! I would buy this card http://www.audiophonics.fr/audiophonics-dac-sabre-es9023-i2s-vers-analogique-24bit192khz-p-8396.html but I ask myself a question, is that the jack raspberry through the DAC with a better quality? or the sound will remain the same for the jack ? Thinks a lot ! :D No idea h...
by 0xFF
Thu Oct 16, 2014 7:14 am
Forum: HATs and other add-ons
Topic: TSOP IR Receiver & I2S DAC
Replies: 2
Views: 1553

Re: TSOP IR Receiver & I2S DAC

AFAIK you can assign different GPIO number for rpi_lirc module.
by 0xFF
Wed Oct 15, 2014 7:28 pm
Forum: Troubleshooting
Topic: 20x2 I2C OLED character display and XBMC = nothing (solved)
Replies: 47
Views: 10893

Re: 20x2 I2C OLED character display and XBMC = nothing

Is your display size correct ?

Code: Select all

# 
Specifies the size of the LCD.
# In case of multiple combined displays, this should be the total size.
Size=20x4
Try setting:

Code: Select all

ExtendedMode=yes
by 0xFF
Fri Oct 10, 2014 5:09 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: How many I2C buses does RPI have? (solved)
Replies: 32
Views: 9363

Re: How many I2C buses does RPI have?

There is another i2c bus accessible via HDMI:

http://blog.koalo.de/2013/11/i2c-over-hdmi.html
by 0xFF
Tue Sep 16, 2014 5:45 pm
Forum: Troubleshooting
Topic: 20x2 I2C OLED character display and XBMC = nothing (solved)
Replies: 47
Views: 10893

Re: 20x2 I2C OLED character display and XBMC = nothing

Great. Good to see yet another device working with RPi ;-)
by 0xFF
Mon Sep 15, 2014 6:15 pm
Forum: Troubleshooting
Topic: 20x2 I2C OLED character display and XBMC = nothing (solved)
Replies: 47
Views: 10893

Re: 20x2 I2C OLED character display and XBMC = nothing

No idea. Was the driver cross-compiled on 64bit system?
by 0xFF
Sun Sep 14, 2014 9:04 pm
Forum: Troubleshooting
Topic: 20x2 I2C OLED character display and XBMC = nothing (solved)
Replies: 47
Views: 10893

Re: 20x2 I2C OLED character display and XBMC = nothing

Oh, thanks, I will try to get it running next week. Was just about to ask whats next, does it matter that I have lcdproc plugin all ready installed? No, that's no problem. Can I just overwrite the hd44780.so with patched version and set userdataLCD.xml and LCDd.conf to match my display? Should be f...
by 0xFF
Sun Sep 14, 2014 6:16 pm
Forum: Troubleshooting
Topic: 20x2 I2C OLED character display and XBMC = nothing (solved)
Replies: 47
Views: 10893

Re: 20x2 I2C OLED character display and XBMC = nothing

For fun with XBMC, you need to download lcdproc sources from http://www.lcdproc.org/ and patch hd44780-i2c.c file like I did here: https://github.com/0xFACE/RPi-OLED-Display-SSD1311/blob/master/hd44780-i2c.c I'm not good coder, so it is just dirty hack for hdd44780-i2c driver. Build sources, copy hd...
by 0xFF
Sat Sep 13, 2014 4:56 pm
Forum: Troubleshooting
Topic: 20x2 I2C OLED character display and XBMC = nothing (solved)
Replies: 47
Views: 10893

Re: 20x2 I2C OLED character display and XBMC = nothing

Is your python code working without error ? Double check init values. Check if display needs some "sleep" instructions during init. Power down your display for while between tests. Switch off LCDd daemon and leave related stuff for later. First of all, get working python init code. I spent a lot of ...
by 0xFF
Fri Sep 12, 2014 5:49 pm
Forum: Troubleshooting
Topic: 20x2 I2C OLED character display and XBMC = nothing (solved)
Replies: 47
Views: 10893

Re: 20x2 I2C OLED character display and XBMC = nothing

At first look both controllers US2066/SSD1311 seems to be compatible.
Try my python code to test.

Check my github repo. I patched LCDd daemon to work with my display.
I use this one.
Image

Hope my code will work for yours.
by 0xFF
Fri Sep 12, 2014 5:08 pm
Forum: Troubleshooting
Topic: 20x2 I2C OLED character display and XBMC = nothing (solved)
Replies: 47
Views: 10893

Re: 20x2 I2C OLED character display and XBMC = nothing

You need proper initializing code to get your display working. Take look at example code: http://www.buydisplay.com/download/democode/ER-OLEDM2002-1_I2C_DemoCode.txt void LCD_initialize(void) { RES=0; Delay(200); RES=1; Delay(200); Start(); SentByte(Write_Address); //slave addresses with write SentB...
by 0xFF
Thu Sep 11, 2014 1:23 pm
Forum: Beginners
Topic: How to read a bi-color LED
Replies: 9
Views: 2238

Re: How to read a bi-color LED

You can use RGB light sensor, like this:
http://bradsrpi.blogspot.com/2013/05/tc ... ry-pi.html
by 0xFF
Thu Sep 04, 2014 8:57 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: what does mean UU in address chart (solved)
Replies: 6
Views: 1714

Re: what does mean UU in address chart

Code: Select all

man i2cdetect
· "UU". Probing was skipped, because this address is currently in use
by a driver. This strongly suggests that there is a chip at this
address.
by 0xFF
Mon Aug 25, 2014 6:50 pm
Forum: Graphics, sound and multimedia
Topic: Do we still need a USB DAC with the B+ ?
Replies: 10
Views: 8163

Re: Do we still need a USB DAC with the B+ ?

I suggest to use a I2S DAC.

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