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Summary of Contents for Joy-it RB-TFT3.2
- Page 1 3.2 / 3.5 Touch-Display Ausgabe 30.06.2017 Copyright by Joy-IT...
- Page 2 3.2“ / 3.5“ Touch-Display Index 1. Using with a Raspberry Pi 1.1 Connection 1.2 Installing the software 1.3 Using the buttons on the 3.2“ TFT 1.4 Calibrating the touchscreen 1.5 Simultaneously using the LCD and the HDMI output Ausgabe 30.06.2017 Copyright by Joy-IT...
- Page 3 1. Using with a Raspberry Pi 1.1 Connection Plug the 3.2“/3.5“ TFT-Display on the Raspberry Pi so that the display is plugged onto the first 26 PINs of the GPIO connector strip. The backlight should light up now. Ausgabe 30.06.2017 Copyright by Joy-IT...
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Page 4: Installing The Software
You can edit the file directly on your Raspberry Pi with the following command: You can save your changes by pressing Ctrl+X and by confirming with „Y“ and „Enter“. sudo nano /boot/config.txt For the 3.2“ TFT: dtparam=spi=on dtoverlay=joy-IT-Display-Driver-32b-overlay:rotate=270,swapxy=1 For the 3.5“ TFT: dtparam=spi=on dtoverlay=joy-IT-Display_Driver-35a-overlay:rotate=270,swapxy=1 Ausgabe 30.06.2017 Copyright by Joy-IT... - Page 5 …, so that „fb0“ changes to „fb1“. The line should look like: Option "fbdev" "/dev/fb1" This file can also be saved by pressing „Ctrl+X“. The required drivers are now needed to be installed. Therefore, the Raspberry Pi needs to be connected to the internet. Ausgabe 30.06.2017 Copyright by Joy-IT...
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Page 6: Calibrating The Touch Screen
Choose your display size and enter the three commands. Commands for the 3.2“ LCD cd /tmp wget anleitung.joy-it.net/upload/joy-IT-Display-Driver-32b-overlay.dtb sudo cp joy-IT-Display-Driver-32b-overlay.dtb /boot/overlays/joy-IT-Display-Driver- 32b-overlay.dtbo Commands for the 3.5“ LCD cd /tmp wget anleitung.joy-it.net/upload/joy-IT-Display_Driver-35a-overlay.dtb sudo cp joy-IT-Display_Driver-35a-overlay.dtb /boot/overlays/joy-IT-Display_Driver- 35a-overlay.dtbo 1.3 Using the buttons on the 3.2“ TFT There are three buttons mounted to the side of the display. - Page 7 Now you need to edit the „/boot/config.txt“-File. Here you can configure the resolution of HDMI-output and LCD-Display by commenting the needed block of “hmdi_group”,”hdmi_mode” and “hdmi_cvt”. The following example is configured for a resolution of 800x600. Ausgabe 30.06.2017 Copyright by Joy-IT...
- Page 8 #hdmi_cvt=720 540 60 1 0 0 0 ## Configuration for 800x600 ## hdmi_group=2 hdmi_mode=87 hdmi_cvt=800 600 60 1 0 0 0 ## Configuration for 1024x768 ## #hdmi_group=2 #hdmi_mode=87 #hdmi_cvt=1024 768 60 1 0 0 0 ################################ Ausgabe 30.06.2017 Copyright by Joy-IT...
- Page 9 And change the following line… Option "fbdev" "/dev/fb1" …, so that „fb1“ is changed to its original value „fb0“ (this is needed to use the Framebuffer-Copy): Option "fbdev" "/dev/fb0" This file can also be saved by pressing „Ctrl+X“. Ausgabe 30.06.2017 Copyright by Joy-IT...
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