Step 3: Exit the editor saving your changes and then: Step 2: Find the following text and remove it: Step 1: To disable the serial login shell, you need to edit the /boot/cmdline.txt file To disable the serial login shell without using raspi-config, you can use the following steps. Disabling the Serial Login Shell (alternative method) The UART serial port should now be enabled. Step 6 - On the main raspi-config screen select finish and reboot your Raspberry Pi. Step 5 - A confirmation screen should appear showing the serial port has been enabled. If you are using the serial port to control other serial devices, select No. If you want to control the Raspberry Pi through a serial port terminal, select Yes. Step 4 - A screen will ask you if you would like a login shell to be accessible over serial. Step 1 - Install Raspberry Pi OS onto a SD card and boot the Raspberry Pi. The UART port can be enabled using the raspi-config utility. Connecting a 5V device to the UART port can damage the Raspberry Pi GPIO header. When connecting a device to the UART serial port always ensure your device operates at correct voltage, 3.3V. The UART port can be used to connect to a wide range of devices either directly using 3.3V UART pins or with a serial interface to convert the UART voltages to an industry standard such as RS232 or RS485. The Raspberry Pi contains a UART serial port on the GPIO header on pins 8, TXD (GPIO 14) and 10, RXD (GPIO 15). Configure the serial port on Raspberry Pi Created: | Last Updated:
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