Simple keyboard using the tone() function using Arduino

This example shows how to use the tone() command to generate different pitches depending on which sensor is pressed.   Circuit Connect one terminal of your speaker to digital pin 8 through a 100 ohm resistor, and its other terminal to ground. Power your three FSRs (or any other analog sensor) with 5V in parallel. Connect each sensor to analog pins 0-2, using a 10K resistor as a reference to groud on ea ...

Read more

Accessing 5 buttons through 1 Arduino pin

I made the original Instructible that this is based on over a year ago (You can see it here to see some of the theory around how this works:http://www.instructables.com/id/How-to-access-5-buttons-through-1-Arduino-input ). To make a long story short, I moved to a different country a few weeks after that and have not played with any electronics since. I'm starting a project to build a clock that will display ...

Read more

Web Controlled Arduino LED

This instructable shows you how to build a Web-enabled tri-color LED based on an Arduino and the WIZnet Ethernet shield, controllable from any Web browser . Check the live demo at http://try.yaler.net/~arduino/led Because the LED is exposed through a simple RESTful web service running on the Arduino color changes can also be triggered by Pachube or other platforms offering Web hooks. Welcome to the Web of T ...

Read more

Arduino BASIC Shield

Hi all, this is my first instructable documenting the creation of my project, the Arduino UNO BASIC shield which turns the Arduino UNO into a computer running the BASIC programming language. As microcontrollers are essentially low performance computers on a chip (they have a processor, RAM and ROM) they can be used to create small computer systems. The aim of this project was to use AVR microcontrollers to ...

Read more

Arduino Powered Nixie Tubes: ArduiNIX Nixie driver shield assembly

www.ArduiNIX.com presents: ArduiNIX Nixie driver shield assembly The ArduiNIX shield is a user programmable platform for driving multiplexed Nixie tube or other high voltage displays**. The ArduiNIX is open source hardware Welcome to the assembly portion of the site. Here we will take you step by step through the build process of your ArduiNIX kit. First, make sure you have your parts all accounted for! Inc ...

Read more

LED Show 2 using Arduino Esplora

This example shows you how to read different analog sensors to change the brightness of the three colors in the RGB LED. In this example you will read the amplitude from the microphone, the amount of light on the light sensor, and the position of the linear potentiometer. These three sensors will control the intensity of the red, blue, and green colors of the RGB LED. Circuit Only your Arduino Esplora is ne ...

Read more

Arduino light seeker

First of all, I'm from Switzerland so please excuse my english mistakes. Here is one of my first little project I did with my Arduino Uno. It's is just a little light seeker. The servo turns towards the light. Step 1: The wiring Here is the exact wiring I used. The only difference is that I fixed the photoresistors on the servo (but I couldn't do it with the program) Also I used a 9V battery in the video, i ...

Read more

Arduino on all sorts of Atmels

Hello, this is my first instructable, so I hope someone can do anything good with it. So, what exactly is this about? Imagine: You are working on a project. You want to program in the Arduino language because of the simplicy. But you don't want to use a 28 pin monster. Or you need peripherals like CAN or similar what the normal Arduino supported MCUs don't have. So, what to do? Where are two alternatives: 1 ...

Read more

The MicroSlice | A tiny Arduino laser cutter

A few years ago I saw an Instructable where Groover had used a pair of DVD-RW drives to make a pocket laser engraver. Inspired by the idea, driven by the recent purchase of a full-sized 50 watt CO2 laser cutter, and roused by the launch of the Microcontroller contest I took the decision to have a crack at making my own mini laser engraver. I have called the project the MicroSlice. What are the features of t ...

Read more

Arduino Trumpet

This project emulates a trumpet by playing notes using the three buttons (valves). This is easy to make and fun to play with, though it can only play one octave and no sharps/flats. Step 1: Code Load this into your Arduino: int speaker = 9; // Hook up speaker to digital pin 9 int sw1 = 15; // Switch hooked to analog pin 1 int sw2 = 16; // Switch hooked to analog pin 2 int sw3 = 17; // Switch hooked to analo ...

Read more

Wally – IR Detection Robot using Arduino

My First ever Robot. It tracks objects using Infra-red sensors, and has basic AI that follows and avoid objects. I will describe the how I made this robot, and upload some videos. Version 1 (16 Dec 2011): —————–The components used ———————- I actually planned this robot before making it. I didn’t use all the parts expected. here http://blog.oscarliang.net/ir-… I only used these compenents: Arduino 2 x Servo ...

Read more

3High efficiency Dual Voltage 3A power supply

I was looking for a dual voltage power supply initially to power an old HDD with 12V and 5V. I wanted to build a home server based on the Raspberry Pi. I later realized that I had a newer hard-drive that needed only 5V. By then I had already designed and built this one. This power supply has a typical efficiency of 85%+ under real-world conditions and is based on TI's TPS54383 DC-DC converter chip which ope ...

Read more
Scroll to top