The purpose of this Instructable is to build a portable device that can measure the speed of sound in refrigerant gases and use this data to identify them. The speed of sound in an ideal gas is related to two characteristics of the gaseous substance, its molecular mass (kg/mol) and its adiabatic constant (heat capacity ratio), or […]
Step 1: Ingredients: Electronics Arduino Breadboard LCD* 2x 50k pots 150 ohm resistor Jumper wires, and tons of them! If you do not want to use a LCD then you will have to use serial monitor. Wherever you see lcd.print just change it to Serial.print. Instead of lcd.begin change it to Serial.begin(9600);. Step 2: The […]
SEE STEP 11 for uploadable code for this cube. This instructable has mutated over the past few months, and you’ll see a bunch of end results before we get into how to make the cube, and the improvements that have been made over the original construction techniques and original circuit, as well as improvements made […]
Rafael Fuentes, Carmen María Fuentes and Carmen Pérez decided to create this project that was submitted to ‘Creative Electronics’, a Beng Electronics Engineering module at University of Málaga, School of Telecommunications. The project consists of making an eggbot using an Arduino Uno development board. This project was done for being a good introduction to CNC machines […]
In this instructables you will learn how to wire 4 LED’S and make them flash 10 times. This is a great Starter project!! what you will need… 1: arduino (I am using an Duemilanove) 1: breadboard 4: LED’s 10-15: jumper wires 3: resistors Step 1: Adding the LED’s and Resistors1 First put the LED’s on […]
Demonstrates the use of analog output (Pulse Width Modulation (PWM)) to fade an LED. PWM is a technique for getting an analog-like behavior from a digital output by switching it off and on very fast. Circuit An LED connected to digital output pin 9 through a 220-ohm resistor. Schematic image developed using Fritzing. For more circuit […]
This project was submitted to ‘Creative Electronics’, a Beng Electronics Engineering module at University of Málaga, School of Telecommunications (https://www.uma.es/etsi-de-telecomunicacion/). It’s a modification based on sound level meters that are already marketed for use in classes to measure ambient noise. The project is developed in Arduino. It consists of a LED screen in which emoji […]
Once upon a time, 2 girls greatly enjoyed walking in the rain with umbrellas. They decided the enjoyment of this experience could be maximized by building their own pressure-activated web of LEDs to install under their umbrella. Thus, with the help of an Arduino, some 4051 multiplexers, a lot of wire and a lot of […]
This instructable will show the game TankWars, a web based game played on an iPad that drives a real robot tank to fire lasers at a robot. When you hit the robot target, the game is updated. The tank and the target are Arduino’s equipped with RN-XV WiFly modules, the iPad is using a PHP […]
Over the years as technology advanced and grew at a tremendous pace, so did the horizon of ideas and creation in our mind. If we look a few years back, a teenager like me would dare think about creating a robot that would operate listening to their voice and follow the given commands. All they […]
