A while back I saw an EMF (Electromagnetic Field) Detector at makezine.com that used a led bargraph. I decided to modify it to use a 7-Segment LED Display! Here’s my project. Sorry I don’t have any pictures of it in use. Hopefully I can post some soon. Credit goes to Aaron ALAI for the original
Arduino Electromagnetic Field Detector Continue Reading
Arduino Python Twitter (Windows) In this instructable we’ll modify my simpleTweet_00 and rewrite the Processing code with Python. You can expect an ignorant walkthrough by an illiterate noob, but maybe that’s just what you’re looking for. Before you begin: If you need help installing Python, navigating Windows from the Command Prompt, or installing packages, then
simpleTweet_01 python using Arduino Continue Reading
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 Continue Reading
A simple temperature sensor using one LM35 Precision Temperature Sensor , Humidity Sensor and Arduino, so you can hookup on your future projects. The circuit will send serial information about the temperature and humidity so you can use on your computer. I have taken data from my compost. The project is related to an existing
Arduino + Temperature + Humidity Continue Reading
This was one of the first programs i wrote for the arduino after having it a few days 🙂 we will be making l.e.d police lights with minimal materials Step 1: You will need. You will need Arduino (or suitable clone) Breadboard 2x 240ohm resistors 1x Clear Red l.e.d 1x Clear Blue l.e.d Some Jumper
Simple Arduino L.E.D Police Lights Continue Reading
The technology behind Enigma machines and the work done to crack them has influenced cryptography, cryptanalysis, and computer science in general. If you’re unfamiliar with Enigma machines, it’s a device that was developed near the end of World War I, then used extensively by the Nazi regime in World War II, to encrypt messages. The
Kid’s Game to Arduino Enigma Machine Continue Reading
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 Continue Reading
What’s simpler and dumber than a button, you ask… I say: behind a button, unexpected things can hide. And within a program that does various things, handling a button can be tricky. The nice thing is that interesting functions can be built with a simple dumb button. This tutorial will address these aspects: wiring and
Arduino Button Tutorial Continue Reading
I’m here to show you how to use a HC-SR04 Ultrasonic Range Finder with an ATtiny85 as well as programming the ATtiny85 using the wonderful shield that randofo created. List of materials: ATtiny85 Programming Library Arduino Uno HC-SR04 Ultrasonic Range Finder and Library Jumper Wires Breadboard ATtiny85 Step 1: Program the Arduino Before you connect your shield to the Arduino
Ultrasonic Range Finder with an ATtiny85 using an Arduino Continue Reading
If you need an Arduino to shut off from within your Sketch, this is the solution. We will explore wiring the Pololu Pushbutton Power Switch, programming the Arduino to shut off the power, and making the unit “power on” only. The Pololu Pushbutton Power Switch comes in two versions – the SV version geared towards
Power off from an Arduino Sketch using the Pololu Power Switch Continue Reading
