Posted on 14 May 2009
This project combines a battery-operated doorbell, antique phone, Arduino, and subscriber line interface circuit (SLIC) to make a wireless doorbell. Readers are taken through basic phone restoration, creation of a custom doorbell button transmitter, modification of the receiver, workings of the SLIC, and description of the Arduino code.[more]
Posted on 04 Apr 2009
BakerTweet is a way for busy bakers to tell the world that something hot and fresh has just come out of the oven. It’s as simple as turning the dial and hitting the button. All of the baker’s followers get a Twitter alert to tell them that it’s bun-time. Or bread time. Or whatever.The BakerTweet prototype is made up of an Arduino Duemilanove, Arduino Ethernet Shield, Ladyada Proto Shield, a Linksys wifi adapter, and a whole bunch of little parts.[more]
Posted on 29 Mar 2009
Twitter Burglar Alarm is a burglar alarm that tweets when an intruder enters the house.This project controlled by Arduino which is a simple embedded board with an AVR processor.If it sees that the Intruder alert signal is being asserted at the alarm panel, it generates notifications in the form of an SMS and a Twitter status update.[more]
Posted on 07 Jul 2008
Here is the LED Calculator with Rotary Quadrature Encoder for Target System Voltage Selection.You can turn the rotary encoder to set what voltage will be used in the ultimate LED circuit, and read the LED voltage, current, and current-limiting resistor values off the LCD display.The project based on Arduino.[more]
Posted on 06 Jul 2008
Daniel andrade show you how to build a simple temperature sensor using one LM35 Precision Temperature Sensor and Arduino.The circuit will send serial information about the temperatureย�to theย�computer.It is a nice example to hookup on your future projects by changing the source code as you need.[more]