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Volumes

1. Vol 1 Overview — HERO Jr, the Heathkit Personal Robot
2. Vol 2 Hardware Architecture — A 6808, a Big ROM, and Room to Grow
3. Vol 3 Drive & Locomotion — A Rear-Driven Tricycle with a Fixed Head
4. Vol 4 Sensing — Polaroid Sonar, Light, Sound, and Optional IR
5. Vol 5 Speech & Personality — A Robot That Sings, Guards, and Gabs
6. Vol 6 Programming — HJPL, BASIC Cartridges, and the Remote
7. Vol 7 Cartridges & Accessories — The RTC / RTA Ecosystem
8. Vol 8 Acquisition, Restoration & Interfacing Today
9. Vol 9 Vol 9 Cheatsheet — HERO Jr Quick Reference