Here is a project for locking and unlocking with a tilt sensor by tilting it in a defined sequence. It uses an accelerometer module to detect the tilt motion. If the sequence matches with the predefined motion sequence, the lock opens. You can build this lock for a briefcase, ballot box, portable cashbox or even as a door-lock using suitable mechanical arrangement. Circuit and working Fig. 1 shows circuit d ...

If there is sensitive data that you want to keep private when sharing a sketch, add a secret tab and store your private info there! Things used in this project Software apps and online services Arduino Web Editor Arduino IDE Story Often in your sketch, there is some sensitive data that you’d like to keep private, which could accidentally become public when published on GitHub or when you share your sketch w ...

Protect your valuables with a puzzle! Things used in this project Hardware components Arduino MKR IoT Bundle × 1 Software apps and online services Blynk Story Keeping your valuable items away from prying eyes can be hard sometimes, unless you put it in a big safe or something similar... but who has room for that? Instead, create your own puzzlebox using the components from the MKR IoT Bundle and some cardbo ...

You have seen RFID Door Lock Mechanism in some Hotels and other places, where you don’t need a key to unlock the room. You are given a card and you just need to put it in front of a RFID Reader box, and the lock gets unlocked with a Beep and a Blink of LED. This RFID Door Lock can be made easily at your home and you can install it in any door. These Door lock is just electrically operating door lock which g ...

IoT security/environment monitoring device with NFC & fingerprint authentication devices and a Weak Artificial Intelligence Assistant.   Things used in this project Hardware components Arduino UNO & Genuino UNO × 2 Arduino MKR1000 × 1 Solderless Breadboard Half Size × 1 SeeedStudio Grove Base Shield × 1 SeeedStudio Fingerprint Scanner × 1 PN532 NFC Module V3 × 1 LED (generic) × 3 Temperature Se ...

The 4Duino Polling Machine is an inquiry project that involves two or more people and has implemented the ability to send and receive data on both ends. The Polling Machine Project works by sending and receiving Questions and Answers (from the Choices) in the form of strings. First, the Master 4Duino (Client) will select the desired question and will send the question with the choices on the 4Duino Slaves ( ...

There are many types of security systems used all over the world and Digital Code Lock is one of them. We have already covered many digital locks with simple 16x2 LCD using Arduino, Raspberry Pi, 8051 etc. Here we are going to build a Smart Phone Controlled Digital Lock using TFT LCD and Arduino Mega. This lock can be controlled wirelessly via Bluetooth, using your Android phone, within the range of normal ...

Security has always been a major concern for all of us and there are many Hi tech and IoT based security and surveillance system are available in the market. Intruder or Burglar Alarm is one of the classic and popular project among the Electronics students and hobbyists. We have also built many Burglar Alarms based on various technologies: Laser Security Alarm Circuit IR Based Security Alarm Burglar Alarm u ...

Security is a major concern in our day to day life, and digital locks have become an important part of these security systems. There are many types of security systems available to secure our place. Some examples are PIR based Security System, RFID based Security System, Digital Lock System, bio-matrix systems, Electronics Code lock. In this post, let us build a Secret Knock Detecting Door Lock using Arduin ...

Its quiet fun to work with RFID based projects! In the previous article, we saw how to interface RFID with Arduino. Interfacing is the first step to create any useful project. So why don’t we create an RFID based Access Control System or an RFID based Door Lock using Arduino? The system I have designed here is a simple version of the project. This project can be enhanced with a lot of features (which I will ...

IOT has become huge trend in the last couple of years. With growing needs in connected devices many companies have shifted the attention to iot market. Today we are going to share a simple project which we have built –  IOT based  home automation and security systems using Arduino MKR1000. Hope you will like this project. HARDWARE COMPONENTS USED: Arduino MKR 1000 PIR Sensor Gas sensor Relay circuit Bulb AC ...

Voting systems are one of the finest examples of Embedded devices and applications. The complexity and robustness of a voting system depends on the number of voters involved. Here you could see a simple Arduino based voting system that would be a great fit for small-scale elections such as in schools or colleges. This system was designed to ensure security and the coolest thing is the whole voting process c ...