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Assembly Instructions

Important

Before students begin, they should know:

  1. During assembly, no parts should be forced, excessive force will break the components.
  2. The motors should not be manually turned as it will break the plastic gears (that means no pushing and pulling the robot on the ground like a Tonka truck).
  3. The robots battery power should always be turned off when connecting to a computer.
  4. Make sure your robot has room to move and won't be stepped on when testing.
  5. Batteries should be always removed for storage

Step 1

Assemble to axel for the front wheel.

Step 1 Visual

Step 2

Slide the omni wheel onto the middle of the axel.

Animation of omni wheel sliding onto the axel

Assemble the main chassis.

Step 2 Visual

Step 3

Attach the 3D Printed brackets for the battery holder and Microcontroller.

Step 3 Visual

Step 4

First insert the two motors into the 3D motor clip.

Animation of the motors being attached

Second attach the motor clip to the chassis.

Step 4 Visual

Step 5

Attach the wheels to the motors.

Animation of the wheels being attached to the motor

Step 6

Connect the wires to the screw terminals.

Screw terminals visual

Step 7

Attach the ultrasonic sensor to the robot and connect it to the processor.

Ultrasonic sensor visual

Step 8 - Test the Hardware

  1. Make sure your battery power switch is off.
  2. Navigate to https://lab-micropython.arduino.cc/.
  3. Sign in with Google (use your @education.nsw.gov.au account).
  4. Follow these instructions to connect:

Animated connection instructions

  1. Copy and paste this code into main.py
  2. Click SAVE
  3. Disconnect your robot from your computer

Caution

To avoid damaging your computer or robot place it on the floor in an area with enough space for it to move safely before powering it on.

from aidriver import AIDriver, hold_state
import aidriver

"""Hardware sanity test for the AIDriver robot.

Runs a short sequence of movements and distance readings.
Most details are reported via the AIDriver debug logger.
"""


def main():
    aidriver.DEBUG_AIDRIVER = True

    print("Initialising AIDriver hardware test...")

    try:
        robot = AIDriver()
    except Exception as exc:
        print("Failed to initialise AIDriver:", exc)
        print("Check that 'aidriver.py' is in the 'lib' folder on the device.")
        return

    print("Starting tests in 3 seconds. Ensure clear space around the robot.")
    hold_state(3)

    # Test 1: Drive Forward
    print("Test 1: drive_forward")
    robot.drive_forward(200, 200)
    hold_state(2)
    robot.brake()
    hold_state(1)

    # Test 2: Drive Backward
    print("Test 2: drive_backward")
    robot.drive_backward(200, 200)
    hold_state(2)
    robot.brake()
    hold_state(1)

    # Test 3: Rotate Right
    print("Test 3: rotate_right")
    robot.rotate_right(200)
    hold_state(2)
    robot.brake()
    hold_state(1)

    # Test 4: Rotate Left
    print("Test 4: rotate_left")
    robot.rotate_left(200)
    hold_state(2)
    robot.brake()
    hold_state(1)

    # Test 5: Ultrasonic Sensor
    print("Test 5: ultrasonic distance readings")
    for i in range(5):
        distance = robot.read_distance()
        hold_state(0.5)

    print("All hardware tests completed.")


if __name__ == "__main__":
    main()