In this instructable i will explain how to connect 7 segment display, decoder and arduino. It´s pretty easy. At first we have to learn something about decoder. I´m using BCD to 7 segment decoder. My is D147D, this is old chip, but the newer are similar. Documentation about one of them you can find here
Arduino and 7 segment LED display decoder Continue Reading
This project was inspired by this video from YouTube and the Pendulum Challenge Kit from Makershed.com. Its a simple game consisting of five LED lights and one pushbutton switch. The LEDs flash in a sequence and the player must press the button when the middle LED light is lit. The speed at which the lights
StopIt! LED Game (powered by arduino) Continue Reading
This is a clock designed to keep accurate time (independent of atomic or GPS), display local sunrise, sunset and solar noon, and also adjust itself for daylight savings time. I wanted the clock to be easy to use and be flexible. The setting functions are menu-driven, you set each parameter one digit at a time
Solar-Oriented, Arduino-Powered Clock Continue Reading
In this Instructable, I’ll be explaining how to build a motion activated alarm! It uses an Arduino microcontroller, a PIR (passive infrared) sensor, and a type of alarm. You can use an LED indicator, a buzzer, or a piezo. That’s the easy part. I will also be showing how to display to a character LCD
Arduino Controlled Motion Sensor Continue Reading
Most of you have heard the expression ‘Hot Air Rises’. Well, it’s true. So in your typical house, it’s going to be hotter near the ceiling than near the floor. How much hotter? Well, being a Lazy Old Geek, I wanted to know how much. Well, that’s easy, I just point my IR thermometer (See
Temperature Wand using Arduino Continue Reading
Have you ever wanted to, without going out of your way to clock your processor, see how much stress your computer is under? With this project you will have a simple bar graph that constantly shows how much stress your computer is under. If the graph reads 0, your computer isn’t working too much. If
Visual Computer Stress Meter using an Arduino Continue Reading
You know that feeling of driving away from your house almost getting to work and saying “Now Did close the garage door?” . I hate that feeling and seeked out to resolve it in the smiplest/cheapest way I could. The starting point was of course Arduino. This project ended up being simpler than I could
Twitter garage door using the GE Choice ALERT system & Arduino Continue Reading
This Instructable details how to build a holiday dreidel display for your roof. It uses coat hanger wire, rope light, and an Arduino controller to control a fading demo mode and a “spin” mode. In the demo mode, the symbols fade in and out, going from one to another. In “spin” mode, the symbols flash
Holiday Dreidel Light Display for Roof using Arduino Continue Reading
I came across Plama2002’s “Emergency Party Button” build a while back and wanted something similar for my bar. I also had an old USAF B-8 stick grip from an A-10A that I picked up in my previous life. I figured instead of just being a conversation piece, I could put it to good use as
Arduino-powered A-10 stick grip remote w/Emergency Party Button Continue Reading
My company has annual events where we all get together for fun – to blow off steam and have a little competition. In the past we have had softball and bowling competitions. This year someone had an inspiration: each department would build a putt-putt ‘hole’ in the officed and we would all compete to make
PuttDuino putt-putt hole with Arduino Continue Reading
