Ongeveer 534 resultaten
Koppelingen in nieuw tabblad openen
  1. 12

    This project demonstrates how to use a 4x4 keypad with an Arduino to create a password-protected system that controls an LED. The LED will turn on if the correct password is entered and remain off otherwise.

    Components Required

    • Arduino Uno (or compatible board)

    • 4x4 Keypad

    • LED

    • Resistor (220 ohms for the LED)

    • Jumper wires

    • Breadboard

    Circuit Connections

    1. Keypad: Connect the 8 pins of the keypad to digital pins on the Arduino (e.g., D2–D9).

    2. LED: Connect the positive leg of the LED to a digital pin (e.g., D10) through a 220-ohm resistor. Connect the negative leg to GND.

    3. Ensure all components share a common ground.

    Code Implementation

    Below is the Arduino code for setting up a password system using a 4x4 keypad. The correct password is predefined as 1234. If entered correctly, the LED turns on.

    Feedback
  2. Arduino Getting Started
    https://arduinogetstarted.com › tutorials › arduino-keypadDit resultaat vertalen

    Arduino - Keypad | Arduino Tutorial

    Learn how to use keypad with Arduino, how to connect keypad to Arduino, how to code for keypad, how to check keypad password, how to program Arduino step by step.

    • Learn how to use Arduino to control WS2812B RGB LED strip, how to control color and brightness of each individual LED on the strip, how to program Arduin…

    Alleen resultaten van arduinogetstarted.com weergeven
  3. Arduino Forum
    https://forum.arduino.cc › solved-arduino-keypad-application-for...Dit resultaat vertalen

    [SOLVED] Arduino keypad application for password

    10 dec. 2022 · What I`m trying to do is send the password based on the keypress at 5 second interval, for example if I press 12345678, the relay will trigger once for the first digit, delay 5 second and …

  4. Mensen vragen ook naar
    Feedback
  5. Circuit Basics
    https://www.circuitbasics.com › how-to-set-up-a-keypad-on-an-ard…Dit resultaat vertalen

    How to Set Up a Keypad on an Arduino - Circuit Basics

    • One of the most useful applications of a keypad is to use it for keyed entry. You can set up a password and have the Arduino activate a relay or some other module if the password is correct. The following code will activate a 5V relay when the password is entered correctly: You can change the password on line 10 by replacing the 123A456text with yo...
    Meer bekijken op circuitbasics.com
  6. Makerguides.com
    https://www.makerguides.com › how-to-use-a-keypad-with-arduin…Dit resultaat vertalen

    How To Use A Keypad With Arduino - Makerguides.com

    • Meer weergeven

    8 mrt. 2022 · In this tutorial you will learn how to use a Keypad and an Arduino to build a password protected system. This project can be a great way to enhance the security of your projects or create a …

  7. Homemade Circuit Projects
    https://www.homemade-circuits.com › passwor…Dit resultaat vertalen

    Password Security Lock Circuit Using 4×4 Keypad and …

    7 sep. 2016 · In this post I will show how to construct a password security lock circuit, which can be accessed by a 6-digit password. To be more precise it is …

  8. How To Electronics
    https://how2electronics.com › password-based-…Dit resultaat vertalen

    Password Based Security System Using Arduino & Keypad

    2 feb. 2025 · This code implements a Password-Based Door Lock System using an Arduino Nano, a 4×4 keypad, an LCD, a servo motor, a buzzer, and two LEDs. The …

  9. Github
    https://github.com › AjayaPhysics › Arduino-Password-Protected-L…Dit resultaat vertalen

    Arduino-Password-Protected-Lock-System-with-Keypad-LCD-LEDs

    Use the 4x4 keypad to enter the password. Press # to submit the password. Press * to clear the input. Green LED lights up for 1 second. Buzzer emits a 1 kHz beep for 500 ms. LCD displays "Access …

  10. Arduino Project Hub
    https://projecthub.arduino.ccDit resultaat vertalen

    Logical Password Sequence - Arduino Project Hub

    28 aug. 2020 · 8-digit password sequence program with situational logic. I wanted to come up with a password sequence program for a future engineering project I …

  11. Electronic Clinic
    https://www.electroniclinic.com › password-doo…Dit resultaat vertalen

    Password Door Lock Security System using Arduino and …

    18 aug. 2024 · Password Door Lock Security System using Arduino and Keypad- in this tutorial, you will learn how to make the most efficient Password protected …

  12. Instructables
    https://www.instructables.comDit resultaat vertalen

    Keypad Password - Project 1 : 3 Steps - Instructables

    Here's the code for the program. It will turn the Green LED on and print "Access Granted" on the serial monitor when the correct password is entered. When an …