OLED display for Snakeoil Raspberry Pi and MPD

[Bromf]

This is a recipe for MPD....       (if you use LMS then you will have to research the LMS forums ???...)
(I am assuming you have a usage knowledge of the Linux editor 'nano')

We are using a simple OLED  SH1106 I2C 128x64 screen such as this...
https://www.ebay.com/itm/1-3-White-OLED-...SwVGFZqEDx
vcc=3.3v  Gnd, SDA and SCL  as per your Raspberry Pi's GPIO

Install Snakeoil to your Raspberry pi and bring up the web app..
https://www.snakeoil-os.net/forums/Threa...nd-Testing
https://www.snakeoil-os.net/Manual/confi...-interface

Change password in web app>'System' page.
Log into Snakeoil via ssh. = pi@<ip_Address>              password = <whatever_you_used_above>

Then run...

Code:

sudo raspi-config

and action these options...
#5=Interface options>P5 I2C and activate i2c
then...

#7=Advance options>A1 Expand filesystem
Finish...and reboot.

ssh in again and install Adrians Oled...(sourced from here...https://github.com/antiprism/mpd_oled)

Code:

sudo apt-get update
sudo apt-get install git-core autoconf make libtool libfftw3-dev libasound2-dev
git clone https://github.com/karlstav/cava
cd cava
./autogen.sh
./configure
make
sudo make install

 
and...

Code:

cd ~
sudo nano  /boot/config.txt

add at the  bottom the following...

Code:

dtparam=i2c_arm_baudrate=400000

then..

Code:

sudo nano /etc/modules

and check that i2c-dev is listed and uncommented (should be default) 

Now...

Code:

sudo apt-get install python-smbus
sudo reboot

ssh in and...

Code:

sudo dpkg-reconfigure tzdata

select for your location.

Important..(use next whichever version of mpd you are using as your player...I am using mpd-v20.)
 

Code:

sudo nano /var/www/players/mpd-v20/mpd.conf.template

add the following lines to the end of the file... (this is for the oled data and will not affect your selected audio output details)

Code:

audio_output {
        type            "fifo"
        name            "mpd_oled_FIFO"
        path            "/tmp/mpd_oled_fifo"
        format          "44100:16:2"
        #buffer_time     "500000"
}

Force Snakeoil to regenerate mpd.conf and restart MPD by going to the Web UI = MUSIC PLAYER and clicking the 'Save and restart players' button.

mpd_oled install.....
 

Code:

sudo apt install build-essential git-core autoconf make libtool libi2c-dev i2c-tools lm-sensors libcurl4-openssl-dev libmpdclient-dev libjsoncpp-dev

Code:

git clone https://github.com/antiprism/mpd_oled

cd mpd_oled

PLAYER=MPD make

Check the program works correctly by running it while playing music.
( The OLED type MUST be specified with -o from the following list: 1 - Adafruit SPI 128x64, 3 - Adafruit I2C 128x64, 4 - Seeed I2C 128x64, 6 - SH1106 I2C 128x64.)

(test for SH1106 I2C 128x64)

Code:

sudo ./mpd_oled -o 6 -b 10 -g 1 -f 20

My preferred for SH1106 I2C 128x64(changes scroll rate and 12 Hr clock)

Code:

sudo ./mpd_oled -o 6 -a 3c -r 24 -s 20.0,2.0,3.0,2.0  -C 3

either of the above should activate the oled.
Stop the display with..Ctrl+c

(you can edit the configuration here otherwise accept the defaults...)

Code:

cd mpd_oled
sudo nano mpd_oled.service

 
then if all works finish by doing...

Code:

sudo bash install.sh

cd ~

reboot.