ViBracelet

The goal of this project is to build a vibrating bracelet that alerts the wearer to incoming calls on an iPhone 4S. This device was originally created for a blind and partially hearing-impaired client who could not hear or see her phone ringing and wanted an inconspicuous and wearable device... Read more »

Arduino Data-Logging Shield Kit

This data-logging shield for the Arduino makes saving data to files on any FAT16 or FAT32 formatted SD card really easy. The included Real-Time Clock timestamps all your data with the current time, so that you know precisely what happened and when! Read more »

Micro FM Transmitter

This circuit is commonly credited to Japanese multimedia artist Tetsuo Kogawa. It takes audio input through a 1/4″ phono jack and, constructed as shown, without the optional antenna connections, will broadcast an FM radio signal about 30 feet. This is the standard model of Mr. Kogawa’s simplest FM transmitter, which... Read more »