A level shifter can be used to convert 5V sensor signals to 3.3V. This allows 5V devices to be used with the Raspberry Pi’s GPIO pins which require 3.3V.
Source : Using a Level Shifter With the Raspberry Pi GPIO – Raspberry Pi Spy
A level shifter can be used to convert 5V sensor signals to 3.3V. This allows 5V devices to be used with the Raspberry Pi’s GPIO pins which require 3.3V.
Source : Using a Level Shifter With the Raspberry Pi GPIO – Raspberry Pi Spy