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Multipurpose AVR data logger
Written by Administrator   
Wednesday, 18 May 2011 00:00

Practically speaking any development board can serve as simple datalogger. The only question where this data is gonna be stored. During long time periods there can be tons of data collected. As internal memory of microcontroller is very limited, there are two options. On is to store data to external media like SD card or send data to PC via one of available interfaces like RS232, USB or Ethernet.

chris decided to build a logger board that is equipped with necessary interfaces (RS232, Ethernet, SD/MMC) and even prototype area for custom circuit. Board is designed to be low power and is operating from 3.3V.

Read more: AVR Datalogger Zero

Last Updated on Wednesday, 18 May 2011 00:46
Android talks to Arduino
Written by Administrator   
Tuesday, 17 May 2011 00:00

This project slightly modifies the Google Android sample app called "Bluetooth Chat" so you can type a message in the Android app and that same message will appear on an LCD attached to an Arduino Uno.

Android talks to Arduino



Last Updated on Tuesday, 17 May 2011 00:49
PopCARD: Pop Machine Cash Card
Written by Administrator   
Tuesday, 17 May 2011 00:00 writes:

A few years ago, I bought a drinks / vending / pop machine on Craigslist for about $800. It was in very good condition and had clearly not been used very much at all. In fact, the only maintenance I’ve had to perform on it was to replace one of the light tubes.

The machine is made by Dixie Narco, and it turns out the machine is quite common and very capable, although by vending standards it is now considered “out of date”. But it’s good enough for my needs. I put it in the hallway of my building and use it to sell a variety of drinks to my neighbours.

PopCARD: Pop Machine Cash Card –[Link]

Last Updated on Tuesday, 17 May 2011 00:57
Android phone controls Arduino over wifi
Written by admin   
Saturday, 14 May 2011 00:00

Authors: admin did a little demo to send data to an Arduino with a TCP/IP Shield (using ATC-1000M) from an Android device via Wifi. Videos and source code on the link below.

Android phone controls Arduino over wifi - [Link]

Last Updated on Saturday, 14 May 2011 00:09
Computerless Arduino programming hack
Written by Administrator   
Saturday, 14 May 2011 00:00

Teague Labs has developed a device for programming and altering the code on Arduinos without the need for a computer. This opens new opportunities for in the field programming and testing of Arduino projects.

The Computerless Arduino consists of two major components; an Arduino-compatible microcontroller loaded with a realtime code interpreter, and a stand-alone 5 button LCD display to display port values and manipulate code. The display can be connected to the Arduino via a 4-pin port at any time to peek at In/Out values, view the current code, and make changes as desired.

The experimental code for this device is open source and available on Teague Labs website.

Computerless Arduino programming hack -  [via]

Last Updated on Saturday, 14 May 2011 00:42
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