Control Raspberry Pi through serial connection

Requirement

Without a network, a keyboard, or a monitor, controlling Raspberry Pi becomes a problem. I accidentally saw an article today.ArticleThat is, you can directly control the Raspberry Pi through the serial port. Give a decisive try. The effect is good. Share it with others!Pai_^

Preparation

• Raspberry Pi Development Board (Official System has been refreshed)
• USB to serial port tool (pl2303)
• Dubang line (4)

Link

 
Pl2303 Raspberry Pi--------------------VCC + 5vrx rxd (gpio14) TX txd (gpio15) Gnd ground
 

Raspberry Pi pin distribution chart:

Physical connection Diagram

I directly use the notebook power supply for power supply. Of course, you can also add another power supply.

Install the software Ubuntu Linux

• InstallCkermit:Sudo apt-Get install ckermit
• Edit the configuration file:VI ~ /. Kermrc, Write the following content:

SetLine/dev/ttyusb0SetSpeed115200SetCarrier-watch offSetHandshake noneSetFlow-control nonerobustSetFile Type BinSetFile Name exampleSetREC pack1000SetSend pack1000SetWindows5
 

Windows

In Windows, you can use a Super Terminal or Putty to select a Comport and set the baud rate to 115200.

Start connection

• SetPl2303Insert USB into the computer and start Raspberry Pi
• Sudo KermitOpen Kermit
• InputCAnd press enter to view some output information during Raspberry Pi startup.
• After the startup is complete, enter the user name and password to control Raspberry Pi.

How to disconnect

• Enter the shortcut key:CTRL \And then pressCTo exit the Kermit interface.
• Enter againCCan be connected to Raspberry Pi
• InputExitYou can exit Kermit.

Feelings

It is much more convenient to use the serial port for connection. After all, many times we don't need or don't have a monitor. It is enough to just control Raspberry Pi.