Raspberry pi

Install

  1. command
    `sudo dd bs=4M if=2019-09-26-raspbian-buster-lite.img of=/dev/sdX conv=fsync`

Enable ssh over USB @ Raspberry pi

at sd- “boot” partition

  1. add ssh file
    touch ssh
  2. in config.txt should append
     dtoverlay=dwc2 
  3. in cmdline.txt should add after rootwait
    modules-load=dwc2,g_ether
  4. plug the usb, do ssh
    ssh pi@raspberrypi.local

    default user: pi, default password: raspberry

1st time config

sudo raspi-config

LCD Model

Got device from https://www.aliexpress.com/item/32945416376.html How to use it with Raspbian system

This LCD Module need install driver first.

Install

Open terminal(SSH) and install the driver on RaspberryPi (tested on RaspberryPi 3B+,3B,2B,2B+,1B,ZERO)

Run:

sudo rm -rf LCD-show
 
git clone https://github.com/goodtft/LCD-show.git
 
chmod -R 755 LCD-show
 
cd LCD-show/
 
sudo ./LCD35-show
 
# Wait A Few Minutes, when the system reboot ok, you can see that.

Touch screen calibration

This LCD can be calibrated using a program called xinput_calibrator

1. Install it with the commands :

cd LCD-show/
sudo dpkg -i -B xinput-calibrator_0.7.5-1_armhf.deb

2. Click the Men button on the task bar, choose `Preference → Calibrate Touchscreen.`

3. Finish the touch calibration following the prompts. Maybe rebooting is required to make calibration active.

4. You can create a `99-calibration.conf` file to save the touch parameters (not necessary if file exists). `/etc/X11/xorg.conf.d/99-calibration.conf`

5. Save the touch parameters (may differ depending on LCD) to `99-calibration.conf`

Trableshooting

you should install X server on “light” version of rpi

sudo apt-get --no-install-recommends install xserver-xorg xserver-xorg-video-fbdev xinit pciutils xinput xfonts-100dpi xfonts-75dpi xfonts-scalable

sudo vi /etc/X11/xorg.conf

Section "Device"
# WaveShare SpotPear 3.5", framebuffer 1
Identifier "uga"
driver "fbdev"
Option "fbdev" "/dev/fb1"
Option "ShadowFB" "off"
EndSection
 
Section "Monitor"
# Primary monitor. WaveShare SpotPear 480x320
Identifier "WSSP"
EndSection
 
Section "Screen"
Identifier "primary"
Device "uga"
Monitor "WSSP"
EndSection
 
Section "ServerLayout"
Identifier "default"
Screen 0 "primary" 0 0
EndSection

JavaFX

Playmouth

kb/raspberrypi.txt · Last modified: 2020/03/24 15:34 by yehuda
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