Example ArduinoUNO Level Conversion
This tutorial demonstrates the 5V to 3.3V IO level conversion on the Arduino UNO.
Hardware Preparation
- DFRduino UNO R3 (or similar) x 1
- 4-Bit Level Translator x1
Wiring Diagram
As shown in the figure below (here we use Arduino UNO port ~ 10, ~ 11, 12, 13 I/O for demonstration.)
Note: Port A voltage: 1.65V ~ 3.6V; Port B voltage 2.3V ~ 5.5V (VCCA≤VCCB)
Was this article helpful?