In this tutorial, you’ll learn how to control a high-current DC load such as a DC motor or an incandescent light from a microcontroller. (:toc Table of Contents:) Connect a transistor to the microcontroller The transistor allows you to control a circuit that’s carrying higher current and voltage from the microcontroller. It acts as an […]
Using a transistor to control high current loads with an Arduino Continue Reading
ButtonHero is a game made on an Arduino that involves the use of buttons, LEDs, wires, and resistors. In this game, you have to hit the corresponding button to the light that is randomly selected before the light changes. You start with 5 lives and missing or being too slow subtracts one life. The high
ButtonHero using Arduino Continue Reading
A “fan cart” is a roughly constant-force device used in introductory physics labs. It consists of a fan (usually a model airplane propeller on a brushed DC motor) mounted on top of a low-friction cart. Students use it to pretend they’re learning something about force, acceleration, energy, etc. If you’ve ever taken an introductory physics
Arduino-Controlled Physics Lab Fan-Cart Continue Reading
In an earlier post I described an Arduino-controlled fan cart. The driver I used was an L293D quad half-H chip, because I had one handy and was out of simpler parts at the time. It’s always bugged me that I was just controlling speed on that cart, since it’s possible to control direction with an
Improved Fan Cart Using Arduino Continue Reading
There is no better way to hide a covert device than to stick it inside a larger conspicuous device. That said… Essentially, this is a guide for making a data logging system for use with the breathalyzer microphone. To accomplish this, an Arduino and a Logomatic SD data logger are embedded into an old and
Discreet Data Logger using Arduino Continue Reading
Allllllllllright dudes and dudets. Here is whats up, we’re going to make attiny and arduino bestest of friends. If you have ever worked with capacitive switches you know how much it makes you want to smash your face into a wall…Now imagine you have no way to monitor output, well that is what I was
Attiny serial monitor using arduino walkthrough Continue Reading
On this instructable I will try to show how to interface a RFID sensor with the Arduino. I am using the RFID sensor from seeedstudio the serial version of it. There are a few parts you will gonna need. I also bought some RFID keys. UPDATE: Now it works with IDE 021 Step 2: Plugging
How to connect Arduino and RFID Continue Reading
I’ve always been interested in monitoring my local weather, and noticed the difference between what weather.com and accuweather.com think my local weather is, and what I see out the window. I also wanted better control over my heating and A/C system. As a computer and electronics nut, I’ve been playing with the Arduino Microcontroller, and
The Arduino Weather Station Continue Reading
At this point you should have a robot that can think on its own, we need to be able to tap into its thought process. See what he sees. Make some of his decisions for him. in essence, we need to be able to guage his intelligence to make him more intelligent and increase his
Serial Communications with Arduino Continue Reading
