NEXTION DISPLAY ON MMDVM UTAH IMAGE

• Load Utah MMDVM Image from http://www.dmr-utah.net/support/mmdvm/images/

• Burn on a uSD card

• Prepare a SD card, make sure SD card in FAT32 format and less than 32 GB. 

• Copy the file tft for your display from /home/pi/Applications/MMDVMHost/Nextion_G4KLX to the uSd Card ( EX NX3224T024.tft )

• Copy All bmp files from /home/pi/Applications/MMDVMHost/Images/ to the uSd Card.

• Insert the SD card into Nextion SDcard slot, then power on, project installation will be automatically proceeded. 

• When the screen displays "Program completed", power off your Nextion, remove the SD card, the entire process is completed. You should have teh MMDVM logo displayed on the display.

• Open a terminal on the Utah Image . Edit /boot/config.txt

  • $ sudo nano /boot/config.txt

  • Make shure enable_uart=1

  • Make shure dtoverlay=pi3-disable-bt

• Disable the console

  • $ sudo systemctl stop getty@ttyAMA0.service

• Remove the Bluethoth service

  • sudo nano /boot/cmdline.txt

  • Remove the entry : console=serial0,115200

• Edit MMDVM.ini

  • Display=Nextion in [General]

  • Port=/dev/ttyAMA0 in [Nextion]

• Command ls -l /dev/ttyAMA0 should show

  • crw-rw---- 1 root dialout ……….. etc

• Command groups pi should show

  • dialout in the list

• Reboot  and check that the time is updated on the display