Hello to everybody;
I’m facing a lot of problems regarding the setup of a display LCD 2004 + i2c back pack PCF8574AT.
The target should be to show the info about the song by I’m not able to have any feedback from the display
My setup is: Raspberry pi 2 – Hifiberry Digi+ - LCD Display 20x4 with PCF8574AT – Volumio 2.041
I also had the same problems with the previous Volumio release, so probably I’m doing something wrong (I’m not an expert)
I followed many different tutorial in the forum (this is the last one hd44780-16x2-lcd-with-pcf8574-i2c-backpack-t2935.html) and outside to it without success
I also tested al lot of different drivers
The display is turned on, it is correctly (I hope) addressed to 0x3f port, so booting the RPI I expect at least to have the welcome message, but there isn’t
I think that the problem is the file LCDd.conf, but I’m not able to understand where it could be.
Following the wiring layout :
GPIO==> Back pack PCF8574
POS 3 GPIO2==> SDA
POS 5 GPIO3==> SCL
POS 4 5V==> VCC
POS 5 Ground==> GND
Herewith you can find the abstract of my LCDd.conf file
[server]
DriverPath=/home/volumio/raspdrivers/
Driver=hd44780
Bind=127.0.0.1
Port=13666
#ReportLevel=3
#ReportToSyslog=yes
User=nobody
#Foreground=no
Hello=" Welcome to"
Hello=" VOLUMIO 2!"
GoodBye="Thanks for using"
GoodBye=" VOLUMIO 2!"
WaitTime=5
#AutoRotate=no
ServerScreen=no
Backlight=open
#BacklightInvert=yes
#Heartbeat=open
#TitleSpeed=10
ToggleRotateKey=Enter
PrevScreenKey=Left
NextScreenKey=Right
#ScrollUpKey=Up
#ScrollDownKey=Down
[menu]
MenuKey=Escape
EnterKey=Enter
UpKey=Up
DownKey=Down
#LeftKey=Left
#RightKey=Right
## Hitachi HD44780 driver ##
[hd44780]
ConnectionType=i2c
Port=0x3f
Device=/dev/i2c-1
Speed=0
Keypad=no
Contrast=0
#Brightness=1000
#OffBrightness=0
Backlight=no
OutputPort=no
# underline effect (no). [default: yes; legal: yes, no]
#Lastline=yes
Size=20x4
i2c_line_RS=0x01
i2c_line_RW=0x02
i2c_line_EN=0x04
i2c_line_BL=0x08
i2c_line_D4=0x10
i2c_line_D5=0x20
i2c_line_D6=0x40
i2c_line_D7=0x80
#vspan=2,2
#ExtendedMode=yes
#LineAddress=0x10
CharMap=hd44780_default
#DelayMult=2
#KeepAliveDisplay=0
#RefreshDisplay=5
# Default: true.
DelayBus=true
# KeyDirect_4=Enter
# For matrix keys use the X and Y coordinates of the key:
# KeyMatrix_1_3=Enter
KeyMatrix_4_1=Enter
KeyMatrix_4_2=Up
KeyMatrix_4_3=Down
KeyMatrix_4_4=EscapeCan you help me, please?
I wish you the best for the New Year
Massimo