January 23, 2009

Arduino Audio Shield - uses Winbond ISD4003 Chip
Complex Hacks

  Here is a nice new shield for the Arduino. This Audio Shield allows you to record and playback audio using the popular Winbond ISD4003 chip. One thing that looks like it was a bit of a pain was having the 3 volt Windbond chip to interface to the 5 volt Arduino. Windbond ISD4003 datasheet (PDF). "The Voice Shield™ (VS) is an analog audio shield for the Arduino that allows

DIY LED Array Display - using ATmega168 microcontroller
DIY Hacks

6

  NerdKits has put together a video that describes how a LED row/column matrix is wired. This comes in handy when you have limited pins and need to control lots of items. Another popular method is to use a serial to parallel latch.   "This project makes use of row-column addressing, which lets us control lots of LEDs without having one wire going to each one. We also use one