47K Ohm Resistor (50-Pack)

Description

50PCS Resistor 47K ohm 47000 ohm 1/4w 1/4 w 5%

Tutorial: How to use Resistor 47K ohm

The 47K ohm resistor is a fundamental component for electronic projects, useful for limiting current flow in circuits such as those based on Arduino. This tutorial will guide you through the practical use of this resistor.

What you need

• Arduino Uno
• Connecting Wire
• Breadboard

Steps

1. Connect the resistor between a digital pin of the Arduino and an LED.
2. Check the exact value of the resistor on the datasheet to calculate the current limits correctly.
3. Write a simple sketch that turns the LED connected to the resistor on and off.
4. Use the Serial.println() function to display the state of the LED in the serial monitor of the Arduino IDE.

Example code

void setup() {
  pinMode(13, OUTPUT);
}

void loop() {
  digitalWrite(13, HIGH);
  delay(500);
  digitalWrite(13, LOW);
  delay(500);
}

Mini project

Create a simple night light project that automatically turns on an LED when daylight fades, using a 47K ohm resistor to limit the current flow.

Common mistakes

• Incorrect resistor connection
• Wrong resistance value
• Ignore the specifications on the datasheet

Recommended accessories

• Variable resistors (potentiometers)
• LEDs in various colors
• Light sensors

Frequently asked questions

What is the maximum power of the resistor?
Check the datasheet for the exact value, but it is generally a 1/4w resistor.

How do I calculate the current through the resistor?
Use Ohm’s Law: I = V/R where V is the applied voltage and R is the resistance value (47K ohm).