Contents
I have to copy the waveshare overlay for the 4 inch display from https://github.com/swkim01/waveshare-dtoverlays (I used the overlay for linux kernel > 4.4) to /boot/overlays/ someone another idea what I have to do to get this display working?
How many pins does a Raspberry Pi LCD have?
There are 40 pins on Raspberry Pi but only 26 pins on the LCD, so you should pay attention to connecting the pins to your Pi accordingly. Install the touch driver The RPi LCD can be driven in two ways: Method 1. install driver to your Raspbian OS.
How can I drive the LCD on my Raspberry Pi?
The RPi LCD can be driven in two ways: Method 1. install driver to your Raspbian OS. Method 2. use the Ready-to-use image file of which LCD driver was pre-installed. Method 1. Driver installation Please download the latest version of the image on the Raspberry Pi official website.
How big is the screen on a Raspberry Pi 3?
I tried to get the 4 inch display working with my raspberry pi 3 (Waveshare Raspberry Pi 4 Inch Touch Screen TFT LCD (A) 320*480 for Raspberry Pi RPi Model B/Raspberry Pi 2 Model B/Raspberry Pi 3 Model B). I always had a white screen until I found “Bim”s solution in this question ( How to install Waveshare SpotPear 4 inch LCD in RaspberryPI 2?
Click the “Menu” button on the taskbar, choose “Preference” -> “Calibrate Touchscreen”. Finish the touch calibration following the prompts. Maybe rebooting is required to make calibration active. You can create a 99-calibration.conf file to save the touch parameters (not necessary if file exists).
Do you have to install firmware on Raspberry Pi?
You don’t have to install rpi-firmware from https://github.com/notro/rpi-firmware when you use a linux kernel > 4.4. If you do that you will cause a kernel panic. Then you have to reinstall raspbian again. The only problem that appears is missing touch callibration, maybe this is caused by the tutorial maybe not.
How do I get the LCD on my Raspberry Pi?
3) Connect the TF card to the Raspberry Pi, start the Raspberry Pi. The LCD will display after booting up, and then log in to the Raspberry Pi terminal. (You may need to connect a keyboard and HDMI LCD to Pi for driver installing, or log in remotely with SSH) 4) Then open the terminal of Raspberry Pi to install the touch driver.
How does a touch screen work on a Raspberry Pi?
This Raspberry Pi touchscreen LCD uses the SPI communication protocol. The GPIO pins on the Raspberry Pi are directly plugged in to the female header of the 3.2-inch LCD touchscreen display, so you don’t have to worry about the connections.