This walking robot shifts its center of gravity to walk and turns by sliding its feet in opposite directions.
Hardware
The Toddler robot is a high quality robot CNC-machined from aluminum and brass. The aluminum parts are brushed, annodized, acid-etched to make the perfect finish (put the legs on a buffing wheel for a silver shine!). The package includes body parts, legs, ankles, control linkages, screws/nuts/standoffs, etc. Requires 2-3 hours to assemble and tune. The aluminum parts have holes, slots and configurable mounting angles for your own customization. A complete parts listing is available in Appendix A of the Advanced Robotics text.
Electronics
The Toddler robot is controlled by a surface mounted BASIC Stamp® 2 module. Four infrared sensors and receivers, LEDs, servos for tilt and stride, resistors/capacitors, speaker, photoresistors complete the control system. Here are the specifications of the 4.8V Mini STD Servo:
- Dimensions (inches) 1.38x0.67x1.26
- Weight 26.6g
- Speed (sec/60o) - 0.19
- Torque (oz-in) - 47
Documentation
Includes the 155-page Advanced Robotics text in the Stamps in Class style.
Education
Walking robots have mechanical and software interdependencies that require in-depth examples and explanation. The Advanced Robotics text is a 155-page introduction to the Toddler robot's basic movements. Students using the Toddler robot will learn advanced embedded programming with BASIC, efficient code development, sensor feedback, and general control. Because of the number of possible movements (34) we consider the Toddler to be appropriate for those aged 14 and above.
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