Arduino Tutorial 05: Serial Communication

Use Serial.print() to display Arduino output on your computer

Serial.read and Arduino: Here's the advanced stuff you should know

RGB LED not responding to Serial Monitor Input

SOLVED-- HELP: Closing Serial Monitor will close the Digital pin output

Getting Two Arduinos to Communicate Through Serial

Arduino Wireless Serial Communication

Issues Controlling 6 Servo Arduino Robot Arm Using Serial Communication

Raspberry Pi and Arduino Serial Communication