LilyGO T3S3 E-Paper Arduino Serial Not Working? Try These Fixes!

The LilyGO T3S3 is an ESP32-S3-based development board designed for projects involving e-paper displays, wireless communication, and IoT applications. It integrates well with Arduino IDE, making it a popular choice among developers.

However, many users experience issues with serial communication, where the board fails to output data, does not appear in the Arduino Serial Monitor, or has trouble establishing a stable connection.

This guide will walk you through the most common causes of this issue and provide step-by-step solutions to help you restore communication.

What Causes LilyGO T3S3 Serial Communication to Fail?

If your LilyGO T3S3 is not working