Sunday, October 23, 2011

Center Foot Fixed!


New Custom Built, CNC Machined Center Foot.  Per the "Official Blueprints", the Center Ankle pivot hole is located 0.625" below, perpendicular to, the top of the foot.  This allows for 18° of tilt.

Friday, October 21, 2011

New Primary Sound System

Arduino Uno + Wave Shield

Arduino Uno (Atmega328)
Adafruit Wave Shield
Kingston 2GB MicroSD card w/ SD/MMC Adapter

QKits  FA604: 8 watt mono Audio Amp (not shown)
One (1) Pioneer TS-A878 3.5" 2-Way Speaker (not shown)

Fully programmable, using the Arduiono Uno, the Wave Shield plays up to 22KHz, 16-bit, mono (yes... mono) PCM (.wav) files.  It's a low cost, small package, has an onboard DAC, filter and op-amp for high quality output. Audio files are read off of an SD/MMC card.  Volume can be controlled with the optional on board thumb-wheel potentiometer.

The amplifier is a mono IC amplifier, using a TDA2030 IC with 8 Watts output.  This amp runs off of 12VDC, has a 94 dBA signal/noise ratio and a 20Hz to 20kHz frequency response, all in a small, low cost package.

This is my Droid's Primary Sound System with the Secondary System being the audio portion of the Hasbro Interactive R2 conversion.