Henr-y

New, Update2: Added a voice and sound module to make Henry talk.

This is my second robot so I wanted to build one with a track drive.  I

got some nice tracks from robotshop.ca. and they're really nice.  The frame is

made with Sintra board.... easy to cut and drill. Making the frame took the

longest time, the electronics was easier.  Just need to program the LCD module

and add the head servos....to be continued.

Update1:

So I gave Henry a new head and eyes....used a pan and tilt with 2 servos, and two green Leds for the eyes. The head was made with a toy binocular. Got these at a Dollar store….ya for a dollar.

It was easy to remove the front lens cut the Styrofoam and make a hole for the green leds.   Mounted

this to pan and tilt with two blinking leds and Henry’s head comes to life.

On the front   a LCD displays messages and a bargraph of the Battery voltage level.  There is also a  super bright blue Led which lights up when he detects an obstacle so he can have a closer look. A piezo  on the front to make some warning beeps.

On the back I put 3 hinges which open to access the electronics inside.

Right now the only sounds are beeps but I will add a voice module to give him more personality.

Update2:

Can Henry speak?  Found a neat voice module from 4D Systems.

The SOMO-14D is a tiny Audio-Sound module that

can play back pre-stored audio files such as voice

and music from a micro-SD memory card. The

module supports 4-bit ADPCM audio files with

sample rates from 6Khz up to 32Khz. By using the

freely available software tool, any WAVE(.wav) or

MP3(.mp3) file can be easily converted to the

ADPCM(.ad4) format which can then be can be

saved to a micro-SD memory card. The compact

14pin drop-in-module takes up very minimal

board space and is ideal for any application that

requires embedded audio.

The module offers two modes of operation,

SERIAL-MODE and the KEY-MODE.

The SERIAL-MODE provides a simple 2-wire

interface to any micro-controller via its DATA and

CLK lines. Audio operations such as PLAY, PAUSE,

STOP and VOLUME control functions are all

available to the host micro via simple serial

commands.

The KEY-MODE provides a stand alone operation

where a host micro is not required. With only 3

push buttons, a 3V battery and a speaker, an

extremely compact and low component count

MP3-Player like system can be implemented.

In short, the SOMO offers a very flexible, compact

and low cost embedded audio solution for many applications