### Board Adafruit Feather ESP32 ### Device Description Plain board. ### Hardware Configuration No. ### Version v2.0.2 ### IDE Name Arduino IDE ### Operating System macOS 10.13.6 ### Flash frequency 40MHz ### PSRAM enabled no ### Upload speed 921600 ### Description Echoing text in the Serial Monitor causes dropped characters. Run the following sketch, then cut and paste the following text into the Serial Monitor input field, and press Return: $0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ $0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ The text is echoed as: ````text $0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ $0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRS ```` (without the line break), so the last 8 characters have been dropped. ### Sketch ```cpp void setup() { Serial.begin(9600); } void loop (void) { if (Serial.available()) Serial.print((char)Serial.read()); } ``` ### Debug Message ```plain No debug output. ``` ### Other Steps to Reproduce I have repeated the same test on ESP32 Arduino core version 1.0.6 and it works fine; in other words, it echoes: ````text $0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ $0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ ```` (without the line break). ### I have checked existing issues, online documentation and the Troubleshooting Guide - [X] I confirm I have checked existing issues, online documentation and Troubleshooting guide.