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=Escape
Can you help me, please?
I wish you the best for the New Year