Connecting Raspberry Pi to Laptop via Ethernet

1. Hardware Configuration

One Raspberry Pi 3B+ board

One 16GB memory card

One card reader

One power cable

One Ethernet cable

One laptop

One mouse

One HDMI cable

One TV monitor

2. Software Configuration

1. Operating System: 2019-07-10-raspbian-buster

2. Remote Connection: PuTTY

3. Remote Desktop: TightVNC

4. System Imaging: Win32DiskImager

Install the above software (easily obtainable)

3. Operation Process

Step 1: Download 2019-07-10-raspbian-buster and use Win32DiskImager to write it to the memory card

Step 2: Insert the memory card, connect the hardware properly, and power on

Step 3: Complete the initialization settings, then power off and remove the memory card

Step 4: Copy the following two files to the root directory of the memory card

Files: ssh and wpa_supplicant.conf

The filessh is empty

The filewpa_supplicant.conf content is as follows

country=CN   //Copy these three lines ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdevupdate_config=1
network={ssid="eaaaarth"    //WiFi name
psk="HX1aaas500ddddffg7082298"  //WiFi password
key_mgmt=WPA-PSK //WiFi encryption method
priority=2      //Connection priority, the larger the number, the higher the priority}
network={ssid="aRdaiaaa"psk="150070aaa82298="key_mgmt=WPA-PSK priority=1}   

Remember to delete the comments during actual operation

Step 5: Set up Internet sharing on the computer (Windows 10)

Start -> Control Panel -> View Network Status and Tasks -> Change Adapter Settings -> WLAN -> Properties -> Enable Sharing

Step 6: Insert the memory card, power on, and obtain the Raspberry Pi’s IP address

Press win+r to open the cmd command window

Enter the command

arp -a

Step 7: Open PuTTY, enter the Raspberry Pi IP address, connect remotely, then enter username pi and password raspberry

Step 8: Start the VNC service and set it to start on boot

1. Enter the command:

sudo nano /etc/init.d/tightvncserver

2. Enter the content:

#!/bin/sh### BEGIN INIT INFO# Provides: tightvncserver# Required-Start: $syslog $remote_fs $network# Required-Stop: $syslog $remote_fs $network# Default-Start: 2 3 4 5# Default-Stop: 0 1 6# Short-Description: Starts VNC Server on system start.# Description: Starts tight VNC Server. Script written by James Swineson.### END INIT INFO# /etc/init.d/tightvncserverVNCUSER='pi'case "$1" in        start)                su $VNCUSER -c '/usr/bin/tightvncserver :1'                echo "Starting TightVNC Server for $VNCUSER"        ;;        stop)                pkill Xtightvnc                echo "TightVNC Server stopped"        ;;        *)                echo "Usage: /etc/init.d/tightvncserver {start|stop}"                exit 1        ;;esacexit 0

After compiling, press Ctrl+O to save, then Ctrl+T to select the saved file as tightvncserver, finally Ctrl+X and press Enter to confirm exit, as shown in the figure below: (Note: VNCUSER=’pi’ indicates the Raspberry Pi username)

3. Enter the command

sudo chmod 755 /etc/init.d/tightvncserversudo update-rc.d tightvncserver defaults

Step 9: Use TightVNC to connect to the remote desktop

Step 10: Completed

4. Summary

When obtaining the Raspberry Pi’s IP on the computer side, execute the arp -a command twice before and after powering on, and compare to find the Raspberry Pi’s IP address. It is said to be a dynamic address on the network, but this is not absolute