Name: 20 Pieces Red LED - Super Bright 5mm Standard LED
SKU: 440240
Price: 2.12 EUR
Availability: InStock

Description

🔌 Description of LEDs (5 mm LED Diode)

📏 General Characteristics

Type: LED Diode (Light Emitting Diode)
Diameter: 5 mm
Typical Operating Voltage:
- Red: 1.8–2.2 V
- Yellow: 2.0–2.2 V
- Green: 2.0–3.2 V
- Blue: 3.0–3.4 V
- White: 3.0–3.4 V
Recommended Current: 10–20 mA
Polarity: Anode (positive, longer leg) and Cathode (negative, shorter leg)

🎨 Available Colors

Green LED: Used to indicate active or OK status.
Red LED: Symbolizes warnings, errors, or power.
White LED: For illumination or neutral signaling.
Yellow LED: Attention or standby status.
Blue LED: Modern, often used for power-on or special status.

🛠️ Guide for use with Arduino

🔧 Required components

Arduino UNO (or compatible)
Resistors of 220Ω or 330Ω
5 mm LEDs (color of choice)
Breadboard
Jumper wires

📈 Connection diagram (single LED)

Arduino PIN (es. 13) ---> Resistenza (220Ω) ---> Anodo LED
                                      |
                                  Catodo ---> GND

Connect the long leg of the LED (anode) through a 220Ω resistor to an Arduino digital pin.
Connect the short leg (cathode) to the GND of Arduino.

💻 Example code: turn on an LED

// Pin a cui è collegato il LED
int ledPin = 13;

void setup() {
  pinMode(ledPin, OUTPUT); // imposta il pin come uscita
}

void loop() {
  digitalWrite(ledPin, HIGH); // accende il LED
  delay(1000);                // attende 1 secondo
  digitalWrite(ledPin, LOW);  // spegne il LED
  delay(1000);                // attende 1 secondo
}

🧪 Example: turn on 5 LEDs of different colors

⚙️ Connection

LED	Arduino PIN	Resistor
Red	2	220Ω
Green	3	220Ω
Yellow	4	220Ω
Blue	5	330Ω
White	6	330Ω

🔤 Arduino Code for LED Sequence

int ledRosso = 2;
int ledVerde = 3;
int ledGiallo = 4;
int ledBlu = 5;
int ledBianco = 6;

void setup() {
  pinMode(ledRosso, OUTPUT);
  pinMode(ledVerde, OUTPUT);
  pinMode(ledGiallo, OUTPUT);
  pinMode(ledBlu, OUTPUT);
  pinMode(ledBianco, OUTPUT);
}

void loop() {
  digitalWrite(ledRosso, HIGH);
  delay(500);
  digitalWrite(ledRosso, LOW);

  digitalWrite(ledVerde, HIGH);
  delay(500);
  digitalWrite(ledVerde, LOW);

  digitalWrite(ledGiallo, HIGH);
  delay(500);
  digitalWrite(ledGiallo, LOW);

  digitalWrite(ledBlu, HIGH);
  delay(500);
  digitalWrite(ledBlu, LOW);

  digitalWrite(ledBianco, HIGH);
  delay(500);
  digitalWrite(ledBianco, LOW);
}

📘 Practical Tips

Use different resistors for each color to avoid damage: blue and white require higher values.
If you want more control, consider using transistors o LED drivers for higher current.
You can combine these LEDs to create a traffic light, a status indicator, or simple lighting effects.

🧠 Advanced Experiments

PWM (Pulse Width Modulation): Use analogWrite(pin, valore) to adjust brightness.
Sensors: Turn on LEDs in response to light, temperature, or motion sensors.
Light effects: Create breathing, random flashing, or music-synced effects.

Perfect! Here are 3 advanced examples of using 5mm LEDs with Arduino:

🚦 1. Traffic Light with LEDs

🔧 Components

1 Red LED (Pin 2)
1 Yellow LED (Pin 3)
1 Green LED (Pin 4)
3 Resistors (220Ω)
Arduino, breadboard, jumper

💡 Schematic

Connect the LEDs through resistors to pins 2, 3, 4 respectively and GND.

🧠 Code

int ledRosso = 2;
int ledGiallo = 3;
int ledVerde = 4;

void setup() {
  pinMode(ledRosso, OUTPUT);
  pinMode(ledGiallo, OUTPUT);
  pinMode(ledVerde, OUTPUT);
}

void loop() {
  digitalWrite(ledRosso, HIGH);
  delay(3000); // 3 secondi
  digitalWrite(ledRosso, LOW);
  
  digitalWrite(ledGiallo, HIGH);
  delay(1000); // 1 secondo
  digitalWrite(ledGiallo, LOW);

  digitalWrite(ledVerde, HIGH);
  delay(3000); // 3 secondi
  digitalWrite(ledVerde, LOW);
}

🔘 2. LED Toggle with Button (on/off)

🔧 Components

1 LED (e.g. Blue, Pin 8)
1 LED Resistor (330Ω)
1 Button (Pin 7)
1 Pull-down Resistor (10kΩ)
Arduino

🔌 Connection

LED (Anode to Pin 8 through resistor, Cathode to GND)
Button between Pin 7 and 5V, with pull-down between Pin 7 and GND

🧠 Code

int ledPin = 8;
int buttonPin = 7;
bool statoLED = false;
bool statoPrecedente = false;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin, INPUT);
}

void loop() {
  bool lettura = digitalRead(buttonPin);
  if (lettura == HIGH && statoPrecedente == LOW) {
    statoLED = !statoLED;
    digitalWrite(ledPin, statoLED);
    delay(200); // debounce
  }
  statoPrecedente = lettura;
}

📱 3. LED Control via Bluetooth (from App)

🔧 Components

LED (Red – Pin 10)
HC-05 Bluetooth module (TX/RX)
Arduino UNO

📲 Recommended App: Serial Bluetooth Terminal (Android) or similar

🧠 Connection

Red LED at Pin 10 (through 220Ω resistor)
HC-05:
- TX ➝ RX (Pin 0 of Arduino)
- RX ➝ TX (Pin 1 of Arduino, with voltage divider resistor)
- VCC ➝ 5V
- GND ➝ GND

🔥 Note: disconnect TX/RX when uploading sketch to Arduino.

🧠 Code

int ledPin = 10;
char comando;

void setup() {
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  if (Serial.available()) {
    comando = Serial.read();
    if (comando == '1') {
      digitalWrite(ledPin, HIGH);
    } else if (comando == '0') {
      digitalWrite(ledPin, LOW);
    }
  }
}

📲 Commands from app

Send 1 ➝ LED on
Send 0 ➝ LED off

Perfect! The effect “breathing” (also known as fading LED) simulates the behavior of a light that slowly turns on and off, just like it’s “breathing”. It’s a great exercise to learn the PWM (Pulse Width Modulation) with Arduino.

🌬️ Project: LED with breathing effect (fading)

🔧 Required Components

1 LED (preferably White, Blue or Green for a nice visual effect)
1 Resistor 220–330Ω
Arduino UNO
Breadboard and jumpers

🔌 Connection Diagram

Component	Connection
LED Anode	Pin 9 (PWM)
LED Cathode	GND (via resistenza 220Ω)

The Pin 9 of Arduino supports PWM (you can see it with the symbol ~).

💻 Arduino Code: breathing effect

int ledPin = 9;       // Pin PWM
int luminosita = 0;   // Valore PWM (0-255)
int variazione = 5;   // Incremento/decremento luminosità

void setup() {
  pinMode(ledPin, OUTPUT);
}

void loop() {
  analogWrite(ledPin, luminosita); // imposta la luminosità

  luminosita += variazione;        // cambia luminosità

  // Inverti direzione al raggiungimento di estremi
  if (luminosita <= 0 || luminosita >= 255) {
    variazione = -variazione;
  }

  delay(30); // tempo tra i cambi (più alto = respiro più lento)
}

🧪 Additional experiments

Modify delay(30) to make the breathing slower or faster.
Change variazione a 1 for an even softer effect.
Try with a RGB LED to fade through multiple colors (want an RGB example? I can give you one!)

🎨 Variant: “sinusoidal breathing” (more natural)

For a more realistic effect, the sine function can be used to model the brightness (requires the library math.h on some Arduino versions):

int ledPin = 9;
float x = 0;

void setup() {
  pinMode(ledPin, OUTPUT);
}

void loop() {
  float valore = (sin(x) + 1.0) * 127.5; // da 0 a 255
  analogWrite(ledPin, int(valore));
  x += 0.05;
  if (x > TWO_PI) x = 0;
  delay(20);
}

This creates an even softer breathing effect, similar to that of Apple devices or smart devices.

🔌 LED Description (5 mm LED Diode)

📏 General Characteristics

Type: LED (Light Emitting Diode)
Diameter: 5 mm
Typical Operating Voltage:
- Red: 1.8–2.2 V
- Yellow: 2.0–2.2 V
- Green: 2.0–3.2 V
- Blue: 3.0–3.4 V
- White: 3.0–3.4 V
Recommended Current: 10–20 mA
Polarity: Anode (positive, longer leg) and Cathode (negative, shorter leg)

🎨 Available Colors

Green LED: Used to indicate active or OK status.
Red LED: Represents warnings, errors, or power.
White LED: For illumination or neutral signaling.
Yellow LED: Attention or standby state.
Blue LED: Modern, often used for power-on or special state.

🛠️ Guide to use with Arduino

🔧 Required components

Arduino UNO (or compatible)
Resistors of 220Ω or 330Ω
LEDs of 5 mm (color of choice)
Breadboard
Jumper wires

📈 Connection diagram (single LED)

Arduino PIN (es. 13) ---> Resistenza (220Ω) ---> Anodo LED
                                      |
                                  Catodo ---> GND

Connect the long leg of the LED (anode) using a 220Ω resistor to an Arduino digital pin.
Connect the short leg (cathode) to the GND of Arduino.

💻 Example code: turn on an LED

// Pin a cui è collegato il LED
int ledPin = 13;

void setup() {
  pinMode(ledPin, OUTPUT); // imposta il pin come uscita
}

void loop() {
  digitalWrite(ledPin, HIGH); // accende il LED
  delay(1000);                // attende 1 secondo
  digitalWrite(ledPin, LOW);  // spegne il LED
  delay(1000);                // attende 1 secondo
}

🧪 Example: turn on 5 LEDs of different colors

⚙️ Connection

LED	Arduino PIN	Resistor
Red	2	220Ω
Green	3	220Ω
Yellow	4	220Ω
Blue	5	330Ω
White	6	330Ω

🔤 Arduino Code for LED Sequence

int ledRosso = 2;
int ledVerde = 3;
int ledGiallo = 4;
int ledBlu = 5;
int ledBianco = 6;

void setup() {
  pinMode(ledRosso, OUTPUT);
  pinMode(ledVerde, OUTPUT);
  pinMode(ledGiallo, OUTPUT);
  pinMode(ledBlu, OUTPUT);
  pinMode(ledBianco, OUTPUT);
}

void loop() {
  digitalWrite(ledRosso, HIGH);
  delay(500);
  digitalWrite(ledRosso, LOW);

  digitalWrite(ledVerde, HIGH);
  delay(500);
  digitalWrite(ledVerde, LOW);

  digitalWrite(ledGiallo, HIGH);
  delay(500);
  digitalWrite(ledGiallo, LOW);

  digitalWrite(ledBlu, HIGH);
  delay(500);
  digitalWrite(ledBlu, LOW);

  digitalWrite(ledBianco, HIGH);
  delay(500);
  digitalWrite(ledBianco, LOW);
}

📘 Practical Tips

Use different resistors for each color to avoid damage: blue and white require higher values.
For more control, consider using transistors o LED drivers for higher current.
You can combine these LEDs to create a traffic light, a status indicator, or simple lighting effects.

🧠 Advanced Experiments

PWM (Pulse Width Modulation): Use analogWrite(pin, valore) to adjust the brightness.
Sensors: Turn on LEDs in response to light, temperature, or motion sensors.
Light effects: Create “breathing”, random flashing, or music-synced effects.

Perfect! Here are 3 advanced examples of using 5mm LEDs with Arduino:

🚦 1. Traffic light with LEDs

🔧 Components

1 Red LED (Pin 2)
1 Yellow LED (Pin 3)
1 Green LED (Pin 4)
3 Resistors (220Ω)
Arduino, breadboard, jumper

💡 Diagram

Connect the LEDs through resistors to pins 2, 3, 4 respectively and GND.

🧠 Code

int ledRosso = 2;
int ledGiallo = 3;
int ledVerde = 4;

void setup() {
  pinMode(ledRosso, OUTPUT);
  pinMode(ledGiallo, OUTPUT);
  pinMode(ledVerde, OUTPUT);
}

void loop() {
  digitalWrite(ledRosso, HIGH);
  delay(3000); // 3 secondi
  digitalWrite(ledRosso, LOW);
  
  digitalWrite(ledGiallo, HIGH);
  delay(1000); // 1 secondo
  digitalWrite(ledGiallo, LOW);

  digitalWrite(ledVerde, HIGH);
  delay(3000); // 3 secondi
  digitalWrite(ledVerde, LOW);
}

🔘 2. LED Toggle with Button (on/off)

🔧 Components

1 LED (e.g. Blue, Pin 8)
1 LED Resistor (330Ω)
1 Button (Pin 7)
1 Pull-down Resistor (10kΩ)
Arduino

🔌 Connection

LED (Anode to Pin 8 through resistor, Cathode to GND)
Button between Pin 7 and 5V, with pull-down between Pin 7 and GND

🧠 Code

int ledPin = 8;
int buttonPin = 7;
bool statoLED = false;
bool statoPrecedente = false;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin, INPUT);
}

void loop() {
  bool lettura = digitalRead(buttonPin);
  if (lettura == HIGH && statoPrecedente == LOW) {
    statoLED = !statoLED;
    digitalWrite(ledPin, statoLED);
    delay(200); // debounce
  }
  statoPrecedente = lettura;
}

📱 3. LED Control via Bluetooth (from App)

🔧 Components

LED (Red – Pin 10)
HC-05 Bluetooth module (TX/RX)
Arduino UNO

📲 Recommended App: Serial Bluetooth Terminal (Android) or similar

🧠 Connection

Red LED on Pin 10 (through 220Ω resistor)
HC-05:
- TX ➝ RX (Pin 0 of Arduino)
- RX ➝ TX (Pin 1 of Arduino, with voltage divider resistor)
- VCC ➝ 5V
- GND ➝ GND

🔥 Note: disconnect TX/RX when uploading sketch to Arduino.

🧠 Code

int ledPin = 10;
char comando;

void setup() {
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  if (Serial.available()) {
    comando = Serial.read();
    if (comando == '1') {
      digitalWrite(ledPin, HIGH);
    } else if (comando == '0') {
      digitalWrite(ledPin, LOW);
    }
  }
}

📲 Commands from app

Send 1 ➝ LED on
Send 0 ➝ LED off

Perfect! The effect “breathing” (also known as fading LED) simulates the behavior of a light that slowly turns on and off, just like if it were “breathing”. It’s a great exercise to learn the PWM (Pulse Width Modulation) with Arduino.

🌬️ Project: LED with breathing effect (fading)

🔧 Required components

1 LED (preferably White, Blue or Green for a nice visual effect)
1 Resistor 220–330Ω
Arduino UNO
Breadboard and jumpers

🔌 Connection diagram

Component	Connection
LED anode	Pin 9 (PWM)
LED Cathode	GND (via resistenza 220Ω)

Il Pin 9 di Arduino supporta PWM (lo vedi con il simbolo) ~).

💻 Codice Arduino: effetto respiro

int ledPin = 9;       // Pin PWM
int luminosita = 0;   // Valore PWM (0-255)
int variazione = 5;   // Incremento/decremento luminosità

void setup() {
  pinMode(ledPin, OUTPUT);
}

void loop() {
  analogWrite(ledPin, luminosita); // imposta la luminosità

  luminosita += variazione;        // cambia luminosità

  // Inverti direzione al raggiungimento di estremi
  if (luminosita <= 0 || luminosita >= 255) {
    variazione = -variazione;
  }

  delay(30); // tempo tra i cambi (più alto = respiro più lento)
}

🧪 Esperimenti aggiuntivi

Modifica delay(30) per rendere la respirazione più lenta o più veloce.
Cambia variazione a 1 per un effetto ancora più morbido.
Prova con un LED RGB per fare fading su più colori (vuoi un esempio RGB? Posso dartelo!).

🎨 Variante: “respiro sinusoidale” (più naturale)

Per un effetto più realistico, si può usare la funzione seno per modellare la luminosità (richiede la libreria math.h su alcune versioni Arduino):

int ledPin = 9;
float x = 0;

void setup() {
  pinMode(ledPin, OUTPUT);
}

void loop() {
  float valore = (sin(x) + 1.0) * 127.5; // da 0 a 255
  analogWrite(ledPin, int(valore));
  x += 0.05;
  if (x > TWO_PI) x = 0;
  delay(20);
}

Questo crea un effetto “respiro” ancora più morbido, simile a quello dei dispositivi Apple o dispositivi smart.

Tutorial: How to Use 5mm Super Bright Red LEDs

Questi LED rossi super luminosi sono ideali per chiunque voglia illuminare i propri progetti elettronici in modo visibile. Sono perfetti sia per principianti che per maker più esperti.

What you need

Arduino Uno
jumper wire
resistor (check the datasheet)
breadboard

Steps

Connect the anode (+) of the LED to the breadboard.
Insert a resistor between the Arduino pin and the cathode (-) of the LED to protect the circuit (check the datasheet).
Connect the cathode (-) of the LED to the common ground of the breadboard.
Write an Arduino sketch that turns on the LED with a button connected to an input pin.
Test the configuration by pressing the button to turn the LED on and off.
If necessary, adjust the resistor to optimize the brightness of the LED without damaging it.

Example code

const int ledPin = 13; // pin di output
const int buttonPin = 2; // pin di input
int buttonState;
void setup() {
pinMode(ledPin, OUTPUT);
pinMode(buttonPin, INPUT_PULLUP);}
void loop() {
buttonState = digitalRead(buttonPin);
digitalWrite(ledPin, buttonState);}

Mini project

Create a simple light-up clock that turns the LED on and off every minute.

Common mistakes

Using a resistor that is too low or no resistor at all
Connecting the anode to the cathode of the LED
Not checking the operating voltage on the datasheet

Recommended accessories

Variable resistors
Push buttons
Arduino Uno R3
Basic Kit for Arduino Projects

Frequently asked questions

How much current flows through the LED?
Check the specification in the datasheet.

Can I connect multiple LEDs in series?
No, you should connect them in parallel with appropriate resistors for each one.

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20 Pieces Red LED – Super Bright 5mm Standard LED

🎬 The product on video

Description

🔌 Description of LEDs (5 mm LED Diode)

📏 General Characteristics

🎨 Available Colors

🛠️ Guide for use with Arduino

🔧 Required components

📈 Connection diagram (single LED)

💻 Example code: turn on an LED

🧪 Example: turn on 5 LEDs of different colors

⚙️ Connection

🔤 Arduino Code for LED Sequence

📘 Practical Tips

🧠 Advanced Experiments

🚦 1. Traffic Light with LEDs

🔧 Components

💡 Schematic

🧠 Code

🔘 2. LED Toggle with Button (on/off)

🔧 Components

🔌 Connection

🧠 Code

📱 3. LED Control via Bluetooth (from App)

🔧 Components

📲 Recommended App: Serial Bluetooth Terminal (Android) or similar

🧠 Connection

🧠 Code

📲 Commands from app

🌬️ Project: LED with breathing effect (fading)

🔧 Required Components

🔌 Connection Diagram

💻 Arduino Code: breathing effect

🧪 Additional experiments

🎨 Variant: “sinusoidal breathing” (more natural)

🔌 LED Description (5 mm LED Diode)

📏 General Characteristics

🎨 Available Colors

🛠️ Guide to use with Arduino

🔧 Required components

📈 Connection diagram (single LED)

💻 Example code: turn on an LED

🧪 Example: turn on 5 LEDs of different colors

⚙️ Connection

🔤 Arduino Code for LED Sequence

📘 Practical Tips

🧠 Advanced Experiments

🚦 1. Traffic light with LEDs

🔧 Components

💡 Diagram

🧠 Code

🔘 2. LED Toggle with Button (on/off)

🔧 Components

🔌 Connection

🧠 Code

📱 3. LED Control via Bluetooth (from App)

🔧 Components

📲 Recommended App: Serial Bluetooth Terminal (Android) or similar

🧠 Connection

🧠 Code

📲 Commands from app

🌬️ Project: LED with breathing effect (fading)

🔧 Required components

🔌 Connection diagram

💻 Codice Arduino: effetto respiro

🧪 Esperimenti aggiuntivi

🎨 Variante: “respiro sinusoidale” (più naturale)

Tutorial: How to Use 5mm Super Bright Red LEDs

What you need

Steps

Example code

Mini project

Common mistakes

Recommended accessories

Frequently asked questions

Reviews

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