0.91 Ohm Resistor 50 Pack

Description

50PCS 0.91 ohm 1/4w 1/4 w 5%
We have datasheets available for all components, if not present in the product download sheet, send us a message through the contact us form and we will publish it as soon as possible on our website.

Tutorial: How to use 0.91 ohm Resistance

Resistors are essential for limiting the electrical current flow in a circuit. This 0.91 ohm resistor is ideal for beginners who are learning to manage moderate currents in their Arduino projects.

What you need

• Arduino Uno
• Jumpers
• Multimeter

Steps

1. Check the resistance with a multimeter in continuity mode.
2. Connect the positive end of the resistor to an input pin of the Arduino and the other end to GND using jumpers.
3. Write a simple sketch to measure the value of the resistor connected to the input pin.
4. Check that the resistance does not exceed the power rating (1/4 watt) during use.

Example code

// Codice Arduino
int ledPin = 13; // definisci un pin come uscita per il LED
void setup() {
  pinMode(ledPin, OUTPUT); // imposta la porta come uscita
}
void loop() {
  digitalWrite(ledPin, HIGH); // accendi il LED collegato alla resistenza
  delay(1000);
  digitalWrite(ledPin, LOW); // spegni il LED
  delay(1000);
}

Mini project

Create a simple lighting circuit controlled by a resistance. Connect the resistance between the Arduino and an LED to adjust the brightness.

Common mistakes

• Use a resistance with insufficient power compared to the consumption of the connected component.
• Connect the resistance incorrectly (positive-negative reversed).
• Do not verify the value of the resistance before use.
• Use a multimeter without correctly selecting the measurement mode.

Recommended accessories

• Arduino Uno R3
• Kit Jumpers M/F for Arduino
• Digital Multimeter

Frequently asked questions

How do you verify the value of the resistance?
Use a multimeter in continuity mode and connect the positive and negative pins correctly.

What is the maximum power that this resistance can handle?
Check the datasheet, but generally for a 1/4 watt resistance.