# AI-generated Tilt Compass Script

### ChatGPT's Example Script

User

Please write a Python script for the micro:bit that will allow me to rotate it like a steering wheel and:

1. Have a Python script use the micro:bit module's accelerometer to measure its rotation angle.
2. Always point down in its 5x5 LED display.
3. Use the clock hands found in micro:bit compass examples to display the downward direction as one of twelve possible hour positions.

ChatGPT

Certainly! Below is a simple Python script for the micro:bit that uses the accelerometer to measure the rotation angle and displays the downward direction as one of twelve possible hour positions on the LED display. The script uses the compass module for displaying the clock hands.

```from microbit import *

def get_rotation_angle():
x, y, z = accelerometer.get_values()

# Calculate the rotation angle
angle = atan2(y, x) * (180 / 3.14159)

# Ensure the angle is positive
angle = (angle + 360) % 360

return angle

def display_clock_hand(angle):
# Calculate the hour position
hour_position = int(angle / 30)

# Display the clock hand
display.show(Image.ALL_CLOCKS[hour_position])

while True:
# Get the rotation angle
rotation_angle = get_rotation_angle()

# Display the downward direction as a clock hand
display_clock_hand(rotation_angle)

# Optional: You can add a sleep time to avoid rapid updates
sleep(100)```

Explanation

• The get_rotation_angle function calculates the rotation angle based on accelerometer readings.
• The display_clock_hand function determines the hour position based on the rotation angle and displays the corresponding clock hand on the LED display.
• The script runs in a loop, continuously updating the display based on the current rotation angle.
• This script assumes that the micro:bit is lying flat, and you are rotating it like a steering wheel around the z-axis. Adjustments may be needed based on the orientation of your micro:bit during usage.

### Tests

Although the script looks very different from the example you already tried, it still might serve as a decent starting point.

• Examine the script.
• Is it using the accelerometer instead of the magnetometer?
• Do you think it will work?
• Try the script, and name it AI_tilt_compass_first_try.
• Does it display the tilt, or does it display an error message?