A robot roll call of some of my machines

I took the Tacklebot pictures with my Agfa e307 digital color camera.  These are all JPEGs, 640x480, 24-bit color images.  I like the quality of the camera's images, I just hate the PhotoWise software that shipped with it...

Tacklebot #1 (42K):  I built Tacklebot by bolting a large tackle box onto a pair of gearhead motors and a swivel caster.  TB has plenty of carrying capacity, owing to the large motors and batteries.

Tacklebot #2 (42K):  A look under the hood.  Tacklebot has a 68hc11 BOTBoard 2 onboard, with firmware written in SBasic.  The current firmware lets me drive TB around using a tethered cable to a portable RS-232 terminal.

Tacklebot #3 (42K):  Here is Tacklebot with the pull-out trays fully extended.  This feature makes it so easy to work in the robot's guts.  And TB can even carry a small toolset around inside, just so you don't forget a vital screwdriver or something.

I apologize right now for the size of some of these photos, but they really are worth the time to download. I used a high-quality Ricoh video camera with a Snappy frame capture system, then added text with the Fauve Matisse image editor.

Arnold (221K): A six-inch tall robo-pet driven by modified R/C servo motors, with a BOTBoard for a brain. Arnold sports IR object detection and a skirt of bumper switches. It uses furniture drawer knobs fore and aft as casters. The frame is a plastic, two-tiered base sold by Marvin Green. Marvin also sells the BOTBoard; great product.

Huey (218K): A seven-inch tall robo-pet, also driven by modified R/C servo motors. Huey was my first robot, and is still a favorite at the school science fairs. I built a custom 68hc11 board for Huey, and wrote the code in assembly language. The entire program fits in the 512 bytes of EEPROM in a 68hc11a1. Huey has IR object detection, a front bumper switch, and blinking LEDs to show current behavior.

RSG (184K): A shiny red Ready-Set-Go toy truck that I hacked by rewiring its MCU board. Full details on this hack will appear in an upcoming Nuts & Volts magazine article.

A stepper-based robot (200K):  A motor base, used for experimentation.  Overall length is about a foot. I used two of Bill Bailey's chopper driver boards to run the steppers.  The gel-cell is rated 12 VDC at 1.3 Ahr; you can see the charging jack near the front, next to the wheel.  I also used a National Semiconductor Simple-Switcher power supply, rated +5 VDC at 1 A, to provide power for the 68hc811e2 BOTBoard.

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