Overview In this tutorial we are going to Test the 4x4 Resistive Keypad Module using this to make a Simple Math Calculator and Passcode Relay Switch, dont worry because this is an easy project and beginner friendly and I explained this as a very simple and detailed way.   Hardware Used 2 - Arduino Uno 1 - 5v Relay 1-

Overview Here's an interesting scenario. You bought something across the internet. In the midst of the waiting, you ponder "How do they track the packages?" Usually, an online shipping company has a fleet of magicians that delivers your parcel/package. Along the way, they fight different monsters across dimensions trying to steal your package. (This is the reason the package takes

Overview Have you ever wondered how to control your home devices even if you aren't at home? Worry no more, this project will help regulate the room's temperature and humidity and control home devices with just a simple click of a button from your smartphone. This project aims to build a system that can detect the temperature and humidity of

Overview This is the second part of the 2-part project for the 4-wheel drive multifunction (wireless) robot car kit. The first part was about a smart robot car that has its own obstacle detecting mechanism without the aid of user control. The second part covers the smart robot car controlled by an Android smartphone with the use of Bluetooth to

A potentiometer takes an input voltage and outputs a variable amount of it to a circuit, which is determined by the position of a slider on a resistive element. The potentiometer can be used as a voltage regulator, as described above, a means of introducing a variable amount of resistance into a circuit or as a means of adjusting the

Overview Imagine being an employee of  WaterCo™’s (a water utility service company) meterer. Every day seems repetitive: meter this, meter that, and meter those. On your afternoon break, you browse through your social media feed to pass time. Along the feed, you come across one of CreateLabz’s mini-project: A Smart Water Meter. It’s no easy feat to meter hundreds of

Overview This is the first part of the 2-part project for 4-wheel drive multifunction (wireless) robot car kit. The first part covers the functionality of a robot car with its own obstacle avoidance capability using both ultrasonic sensors and infrared obstacle avoidance modules. The robot car is completely autonomous to the robot car kit owner. The robot car uses the

To this point we have controlled light, motion, and electrons. Let's tackle sound next. But sound is an analog phenomena, how will our digital Arduino cope? We will once again rely on its incredible speed which will let it mimic analog behavior. To do this, we will attach a piezo element to one of the Arduino's digital pins. Piezo buzzers

Colorful Light We've blinked an LED and controlled eight in sequence now it's time to control color. Using an RGB LED (actual 3 LEDs in a single housing) we can generate any color our heart desires. We do this through color mixing, what’s required is delving back to your elementary art days of playing with colored cellophane to produce different

Light Whilst getting input from a potentiometer can be useful for human controlled experiments, what do we use when we want an environmentally controlled experiment? We use exactly the same principles but instead of a potentiometer (twist based resistance) we use a photo resistor (light based resistance). The Arduino cannot directly sense resistance (it senses voltage) so we set up