This time I’ll show how I used an Arduino to control a relay module with eight channels. Arduino in offers several advantages such as: – Open source; – Easy programming; – You can assemble your own board; – Is supported on various forums on the Internet; – Has several “shields” (facilitates the use of it
Larson Scanner with Relay Module using Arduino Continue Reading
Creepy fairground attraction and Twitter App! The Psychic Hive-Mind Fortune Teller is a fairground arcade-type attraction which can tell your fortune. Even better than that though – it’s also a web-connected Twitter application that can harvest tweets and regurgitate them as fortune readings! The Fortune Teller reads the mind of a twitter discussion. It takes
Psychic Fortune Teller – An automaton that reads the mind of Twitter Continue Reading
First off, why did we decide to call this thing SODAR? SOnic Detection and Ranging, or SODAR, is a lot like SONAR and RADAR. However, we don’t feel comfortable calling it SONAR because we have no desire to use it for navigation and we aren’t under water. Also, it’s definitely not RADAR as we are
DIY 360 Degree SODAR Device Continue Reading
UPDATE (8/29/13): Thank you readers for your enthusiasm and kind remarks regarding this project! It has been a tremendous journey since I started this project back in March, but I am very glad with the resulting product and the excitement with which it has been received by the maker community. Happy building! -Cyrus Do you like
DIY Arduino Remote Control and Lego RC Vehicle!! Continue Reading
My project is to make a heel (shoe) that senses when your foot is tired and then eases the pain. I will have a force sensor measure how much pressure is on your foot for 3 minutes. If the pressure is at a certain measure for 3 minutes, then a vibrator will go off and
High Heel Massage using an Arduino Continue Reading
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 Continue Reading
In this instructable, I will show you how to make a sensor that will light up more lights the closer you are to it. Step 1: Placing The Electronics This step will show you where and how to place the electronics on the breadboard Materials: 6-220 ohm resistors 3 green LED’s 2 yellow LED’s 1
How to make A light-up distance sensor Continue Reading
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
Sometimes you want everything in the program to stop while a given condition is true. You can do this using a while loop. This example shows how to use a while loop to calibrate the value of an analog sensor. In the main loop, the sketch below reads the value of a photoresistor on analog pin 0 and
How to use a while loop to calibrate the value of an analog sensor using Arduino Continue Reading
This example shows how to use SPI communications to read data from a SCP1000 Barometric Pressure sensor, and how to then post that data to the web by using your Arduino/Ethernet Shield combo as a simple web server. Using the Ethernet library, your device will be able to answer HTTP requests by responding with just
Arduino Barometric Pressure Web Server Continue Reading
