Make LED light up from serial monitor - Programming Questions - Arduino Forum

I want to controll red diode with a comand, blue diode with a comandand same with green. 3 different if statements. I want it as basic as possible so I can understand the code const int RED = 9; const int GREEN = 8; const int BLUE = 7; void setup() { pinMode(RED, OUTPUT); pinMode(GREEN, OUTPUT); pinMode(BLUE, OUTPUT); } void loop() { digitalWrite(RED, HIGH); digitalWrite(GREEN, HIGH); digitalWrite(BLUE, HIGH); }

Solved* Send/Receive I2C Question - Troubleshooting - Particle

HELP! Simple MIDI Buttons and LED's sketch - Programming Questions - Arduino Forum

Serial Monitor stops working randomly - IDE 1.x - Arduino Forum

Serial Monitor data to sd card - Project Guidance - Arduino Forum

Project LED with Dip Switch - Project Guidance - Arduino Forum

unable to use RGB matrix and the serial monitor at once - Programming Questions - Arduino Forum

Does this simplified flowchart describe my code? - Programming Questions - Arduino Forum

Arduino Code, Arduino Lesson 5. The Serial Monitor

ATTiny85 SoftwareSerial printing Garbage to Serial Monitor - Microcontrollers - Arduino Forum

Larson scanner coding issue. please help - Project Guidance - Arduino Forum

Serial Monitor not responding - Interfacing w/ Software on the Computer - Arduino Forum

RGB LED not responding to Serial Monitor Input - Programming Questions - Arduino Forum

Only print Led On once in the serial monitor - Programming Questions - Arduino Forum

There is no useful port in mac Big sur 11.6 for arduino - IDE 1.x - Arduino Forum

SOLVED]Dfficulties with turning on LED's based on a String input from the user. - Programming Questions - Arduino Forum