{"id":1787,"date":"2017-04-14T13:13:41","date_gmt":"2017-04-14T12:13:41","guid":{"rendered":"https:\/\/www.f5uii.net\/?p=1787"},"modified":"2017-04-14T13:13:41","modified_gmt":"2017-04-14T12:13:41","slug":"installation-oled-display-ssd1306-raspberry-pi-mmdvm-mmdvmhost","status":"publish","type":"post","link":"https:\/\/www.f5uii.net\/en\/installation-oled-display-ssd1306-raspberry-pi-mmdvm-mmdvmhost\/","title":{"rendered":"Installing an OLED display on a MMDVM repeater"},"content":{"rendered":"

After the article on the configuration and installation of a Nextion screen on a MMDVM repeater<\/a>, let’s see together how to integrate a small OLED display on MMDVM.<\/p>\n

This type of display is known by the reference SSD1306, it measures 27 millimeters for a display definition of 128 x 64. There are two variants of the SSD1306 display, one running on SPI<\/a> bus and the other on I2C<\/a>. I chose the I2C bus model, recognizable by these SCA and SCL pins. It is monochrome but also exists in a yellow and blue two-color version. Only the lines on the top of the display are yellow. This is the model I use.<\/p>\n

\"\"

OLED SSD1306 display<\/p><\/div>\n

Software prerequisites<\/h2>\n

You are connected to Raspberry Pi.<\/p>\n

First of all, we will validate the SPI and I2C buses of the Raspberry Pi, thanks to the configuration menu.<\/p>\n

 <\/p>\n

sudo raspi-config<\/pre>\n
 <\/p>\n
\"\"<\/a><\/p>\n
We now install software packages to manage these buses.<\/p>\n
sudo apt-get install build-essential git-core libi2c-dev i2c-tools lm-sensors<\/pre>\n
In order for the modules to start we must indicated\u00a0them in the modules file<\/p>\n
sudo nano \/etc\/modules<\/pre>\n
You must have these two lines<\/p>\n
i2c-dev\r\nspidev<\/pre>\n
\"\"<\/p>\n
(Exit with Ctrl-X and Yes to save)<\/p>\n
We restart the Raspberry Pi<\/p>\n
sudo reboot<\/pre>\n
After reconnecting, we must find the ports i2c and spi<\/p>\n
ls \/dev\/i2c*<\/pre>\n
ls \/dev\/spi*<\/pre>\n
\"\"<\/p>\n
Connecting the Display<\/h2>\n
The SSD1306 is an I2C bus version. The connection is made as shown below.<\/p>\n
\"\"<\/a><\/p>\n
Detection Test<\/h2>\n
We will check that the wiring is correct and that the screen is detected on the I2C bus.<\/p>\n
Start the following command.<\/p>\n
i2cdetect -y 1<\/pre>\n
 <\/p>\n
\"\"<\/p>\n
Equipment 3c appears. This is the SSD1306 screen.<\/p>\n
Installing the OLED Display Communication Library<\/h2>\n
If you did not install git on your Raspberry Pi, I suggest you run this command.<\/p>\n
sudo apt-get install git\r\n<\/pre>\n
Download now the ArduiPi_OLED library (directly on github).<\/p>\n
git clone https:\/\/github.com\/hallard\/ArduiPi_OLED<\/pre>\n
then run the software compilation<\/p>\n
cd ArduiPi_OLED\r\nsudo make<\/pre>\n
\"\"<\/p>\n
Recompiling MMDVMHost<\/h2>\n
Let’s update MMDVMHost with these few instructions. The compilation will take several minutes.<\/p>\n
cd \/opt\/MMDVMHost\/\r\nmake clean\r\nsudo make -f Makefile.Pi.OLED<\/pre>\n
pi@raspberrypi:\/opt\/MMDVMHost $ sudo make clean<\/strong>\r\nrm -f MMDVMHost *.o *.d *.bak *~ GitVersion.h\r\npi@raspberrypi:\/opt\/MMDVMHost $ sudo make -f Makefile.Pi.OLED<\/strong>\r\necho \"const char *gitversion = \\\"24358357e890a928f0053bcedd748123d7a6b9c2\\\";\" > GitVersion.h\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o AMBEFEC.o AMBEFEC.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o BCH.o BCH.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o BPTC19696.o BPTC19696.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o Conf.o Conf.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o CRC.o CRC.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o Display.o Display.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMRControl.o DMRControl.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMRCSBK.o DMRCSBK.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMRData.o DMRData.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMRDataHeader.o DMRDataHeader.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMREMB.o DMREMB.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMREmbeddedData.o DMREmbeddedData.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMRFullLC.o DMRFullLC.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMRLookup.o DMRLookup.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMRLC.o DMRLC.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMRNetwork.o DMRNetwork.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMRShortLC.o DMRShortLC.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMRSlot.o DMRSlot.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMRSlotType.o DMRSlotType.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMRAccessControl.o DMRAccessControl.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DMRTrellis.o DMRTrellis.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DStarControl.o DStarControl.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DStarHeader.o DStarHeader.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DStarNetwork.o DStarNetwork.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o DStarSlowData.o DStarSlowData.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o Golay2087.o Golay2087.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o Golay24128.o Golay24128.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o Hamming.o Hamming.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o OLED.o OLED.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o LCDproc.o LCDproc.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o Log.o Log.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o MMDVMHost.o MMDVMHost.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o Modem.o Modem.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o ModemSerialPort.o ModemSerialPort.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o Mutex.o Mutex.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o Nextion.o Nextion.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o NullDisplay.o NullDisplay.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o P25Audio.o P25Audio.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o P25Control.o P25Control.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o P25Data.o P25Data.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o P25LowSpeedData.o P25LowSpeedData.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o P25Network.o P25Network.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o P25NID.o P25NID.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o P25Utils.o P25Utils.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o QR1676.o QR1676.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o RS129.o RS129.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o RS241213.o RS241213.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o RSSIInterpolator.o RSSIInterpolator.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o SerialController.o SerialController.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o SerialPort.o SerialPort.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o SHA256.o SHA256.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o StopWatch.o StopWatch.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o Sync.o Sync.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o TFTSerial.o TFTSerial.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o Thread.o Thread.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o Timer.o Timer.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o UDPSocket.o UDPSocket.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o UMP.o UMP.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o Utils.o Utils.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o YSFControl.o YSFControl.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o YSFConvolution.o YSFConvolution.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o YSFFICH.o YSFFICH.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o YSFNetwork.o YSFNetwork.cpp\r\ng++ -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -c -o YSFPayload.o YSFPayload.cpp\r\ng++ AMBEFEC.o BCH.o BPTC19696.o Conf.o CRC.o Display.o DMRControl.o DMRCSBK.o DMRData.o DMRDataHeader.o DMREMB.o DMREmbeddedData.o DMRFullLC.o DMRLookup.o DMRLC.o DMRNetwork.o DMRShortLC.o DMRSlot.o DMRSlotType.o DMRAccessControl.o DMRTrellis.o DStarControl.o DStarHeader.o DStarNetwork.o DStarSlowData.o Golay2087.o Golay24128.o Hamming.o OLED.o LCDproc.o Log.o MMDVMHost.o Modem.o ModemSerialPort.o Mutex.o Nextion.o NullDisplay.o P25Audio.o P25Control.o P25Data.o P25LowSpeedData.o P25Network.o P25NID.o P25Utils.o QR1676.o RS129.o RS241213.o RSSIInterpolator.o SerialController.o SerialPort.o SHA256.o StopWatch.o Sync.o TFTSerial.o Thread.o Timer.o UDPSocket.o UMP.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o -g -O3 -Wall -std=c++0x -pthread -DOLED -I\/usr\/local\/include -lArduiPi_OLED -lpthread -o MMDVMHost\r\npi@raspberrypi:\/opt\/MMDVMHost $ sudo reboot\r\n<\/pre>\n
Updating the MMDVMHost Configuration File<\/h2>\n
Here is the final step. Now, in the [General] section of the MMDVM.ini<\/em> file, we have installed an OLED screen<\/p>\n
sudo nano \/opt\/MMDVMHost\/MMDVM.ini\r\n<\/pre>\n
[General]\r\nCallsign=F5ZKS\r\nTimeout=600\r\nDuplex=1\r\n# ModeHang=10\r\nRFModeHang=10\r\nNetModeHang=3\r\n#Display=Nextion\r\nDisplay=OLED<\/strong>\r\n#Display=None\r\nDaemon=0\r\n<\/pre>\n
It refers to the OLED section that we do not have to change<\/p>\n
[OLED]\r\nType=3\r\nBrightness=0\r\nInvert=0\r\n<\/pre>\n
Finally, we need to restart the Raspberry Pi<\/p>\n
sudo reboot<\/pre>\n
Result<\/h2>\n
The display SSD1306 lights up. It is waiting for traffic<\/p>\n
\"\"<\/a>
SSD1306 I2C display\u00a0connected to Raspberry Pi, and driven by MMDVMHost<\/p><\/div>\n
\"\"<\/a>
On the talk group\u00a0TG2, WA4BPS is displayed, it is retransmitted on the Time Slot 2 in DMR<\/p><\/div>\n
 <\/p>\n
You are experiencing difficulties in implementation, you can comment on it below.<\/p>","protected":false},"excerpt":{"rendered":"
After the article on the configuration and installation of a Nextion screen on a MMDVM repeater, let’s see together how to integrate a small OLED display on MMDVM. Lire plus …<\/a><\/p>\n","protected":false},"author":1,"featured_media":1807,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[25,38,39],"class_list":["post-1787","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mmdvm","tag-mmdvm","tag-oled","tag-ssd1306"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t