Hello! In this Instructable i will teach you how to control a servo using a Photocell. This is very simple and good for beginners. Step 1: Materials 1 x Photocell 1 x 10k Resistor 1 x Arduino 1x Breadboard 1x Servo and some jumpers Step 2: Wiring it up Wire everything following the schematic below. […]
Control Servo with Light using Arduino Read More »
This is a simple Arduino sketch that was originally designed to experiment with arrays and the built-in timing functionality. I based it on the tutorial sample code http://www.arduino.cc/en/Tutorial/Knock The system consists of a piezo sensor connected to an analog pin that listens for a knock from the user. The Arduino then stores the time the knock
‘Knock Back’ – A Knock Echoing Arduino Read More »
When I say simple, I don’t mean use a speed control. But control the motor directly without any external circuitry. Here’s how: How this came about: I recently was working on an instructable about charlieplexing with an arduino. And I was wondering if the same principle would work with motors to some extent. So I came
Simple 2-way motor control for the arduino Read More »
Ever feel like there aren’t enough toys at the intersection of cuddly and terrifying? Wish your stuffed animals could double as weapons? Then I’ve got the toy for you. These Laser Tag Stuffed Animals easily transform from being a cuddly night light to the world’s softest laser tag weapon. Check out my laser tag plushie
Laser Tag Stuffed Animals Read More »
The Siemens DLO7135 Dot matrix LED is one amazing piece of optoelectronics. It’s billed as a 5×7 Dot Matrix Intelligent Display (r) with Memory/Decoder/Driver. Along with that memory, it’s got a 96-character ASCII display set with upper and lower case characters, a built-in character generator and multiplexer, four levels of light intensity, and it all
Using a Dot Matrix LED with an Arduino and Shift Register Read More »
RFID tags are all over the place. They’re used in building access control systems, passports, inventory tracking . . . This instructable will show how you can use an Arduino and a few simple components (wire coil, transistor, capacitor, resistor) to make a device that can spoof an 125 KHz (low frequency) RFID tag.
Stupid Simple Arduino LF RFID Tag Spoofer Read More »
In this project, you’ll learn to read an RFID tag using the Innovations ID-12 reader and an Arduino Duemilanove. Step 1: Let’s Get Started! We’ll be using the ID Innovations ID-12 to perform the task of reading an RFID tag. At a minimum, it requires +5V, ground, and a digital pin (on the Arduino) that
Reading RFID Tags with an Arduino Read More »
This is one of the first projects I have made with Arduino. It’s a little siren with a LED that fades and blinks on and off. It demonstrates basic use of LEDs and speakers. Also check out this article: 8-Pin Programming Shield Constructive criticism is appreciated! Let’s get started! Step 2: Solder jumper wires
Make a Mini LED Siren powered by Arduino Read More »
The Memsic 2125 (datasheet) is a two-axis accelerometer capable of measuring acceleration up to plus or minus 2g. It has a simple digital interface: two pins (one for each axis) emit pulses whose duration corresponds to the acceleration of that axis. By measuring the length of that pulse, in microseconds, using the Arduino’s pulseIn() function,
Memsic 2125 Accelerometer using Arduino Read More »
Have you ever wondered how migratory birds manage to have such an amazing sense of direction despite being so generally clueless? They can sense the Earth’s magnetic field with what is basically a compass built into their body. Wouldn’t it be cool to feel what that’s like? The following instructions are loosely based off of
How to Make a Tactile Feedback Compass Belt Read More »
