This number does nothing Ever wondered about the ubiquitous 'Serial.begin(115200);' in your Arduino projects? It turns out, with boards like the ESP32-S3 offering native USB support, this baud rate doesn't really matter when streaming data. My tests even showed surprising results with different speeds using Arduino and ESP-IDF, highlighting potential in USB full-speed capabilities. I dove into raw performance testing, and saw deviations from expected UART limits. Check out the full video and explore the results if you're curious about maximizing your data transfer speeds! 12 August 2025