How they steer › 04 OF 04
LegsCranks and feet
Cranks swing the legs: the feet push back and the walker moves forward. With one motor it walks straight; with a motor on each side it turns.
- 1 or 2 motors
- Cranks
- 5 machines
- 2 boards today
No. 01 · Hexapod robot
How it steers
A walker has no wheels: a motor turns cranks, the cranks swing the legs, and each foot pushes back while it stands on the ground and swings forward in the air. The Wonder Building Kit walkers have one motor, so they walk forward and back but do not turn. The hexapod robot has a motor on each side and turns like a tank.
The machines
Pit board: boards and programs
| Board | Motors | Program for the phone | Wiring |
|---|---|---|---|
| ElecFreaks Wukong | one motor on M1 | Walker Driver (Bluetooth) | drawing |
| Yahboom Building:bit | two motor modules, wired like the tank's; Yahboom's own program walks the hexapod at speed 100 of 255, so set SPEED to 100 | Yahboom BuildingBit Tank (Bluetooth) | drawing |
| LEGO Technic Hub, SPIKE Prime hub, BuWizz 3.0 Pro | next one motor, or a motor per side | All the boards | |
Drive and test
- Phone joystick: up walks forward, down walks back; the hexapod robot also turns when you push sideways.
- Test motors: 1 the motor on M1; the hexapod robot 1 left, 2 right.