Monthly Archives: May 2012

Garden Light – Updated

Posted on 2012/05/29 by celem

NOTE: Some updates are at the end of the article. Recently I purchased a couple of Solar powered LED garden path lights at the local Dollar Tree store for $1 each. Ever since I read TalkingElectronics.com‘s writeup on converting such … Continue reading →

Posted in Electronics, hardware | Tagged | 33 Comments

I2C LCD Display

Posted on 2012/05/22 by celem

I recently acquired, via eBay, a 40X4 HD44780 based LCD screen that has a daughter-board on the back that provides an I2C interface, labled “LCD2004“. This permits interfacing with only two wires (SDA/SCL) plus ground and 5-volts. This particular board is sold by … Continue reading →

Posted in Arduino, display, Electronics, Programming | Tagged , , , | 3 Comments

Universal Adapter for Arduino/ATmel USBasp programmer

Posted on 2012/05/09 by celem

A while back I fabricated a socket adapter for my USBasp programmer for use with the eight pin ATtiny85 DIP package microcontrollers. I used a RadioShack Catalog #: 276-150 prototype board, an 8-pin socket, some header pins and wires to create … Continue reading →

Posted in Arduino, Electronics, PCB Etching | Tagged , , , | 14 Comments