Connect to Raspberry PI via USB to TTL Serial Cable
This is a guide how to connect Raspberry PI via USB. There are situations in which we do not need
graphical interfaces, and the command line is sufficient. I personally use my Raspberry PI as an
HTTP server and an broker of MQTT. I had a situation that I lost the connection via ethernet with Raspberry PI and then to solve the problem it was useful to connect via RS232 port.
The serial port is a good debugging tool.
Step 1: Components
Raspberry PI (I am using Raspberry PI 2)
Step 2: Connection PL2303 to Raspberry PI
Now we connect PL2303 to the Raspberry PI 2 as shown below in the table:
Raspberry PI 2
Step 3: Connection USB to PL2303
For PL2303 to work properly you must have the driver installed on your system.
Step 4: Login to Raspberry PI via Serial Port using Putty