MKE-M17-MicroPython 0.1.4

A MicroPython driver for the L9110 motor controller over I2C

Describe

A MicroPython package to control the L9110 motor driver over I2C.

Installation

How to use mke_m17_micropython lib

1. Initialize the Driver

Create an L9110 instance to control your device.

Parameters:

• address (int): The I2C address of the L9110 chip. Default is 0x40.
• bus (I2C): A pre-initialized machine.I2C object (optional). If not provided, a default I2C bus is used.
• bus_number (int): The I2C bus number (default is 1). Ignored if bus is provided.

Example:

from machine import I2C, Pin
from L9110_I2C import L9110

# Default settings (bus_number=1)
l9110 = L9110()

# Custom I2C bus (e.g., for ESP32)
i2c = I2C(0, scl=Pin(22), sda=Pin(21))
l9110 = L9110(address=0x42, bus=i2c)

# With context manager
with L9110(address=0x42, bus=i2c) as l9110:
    pass

2. Control Servos

Use control_servo() to set servo angles.

Args:

• servo_id (int): 1 (S1) or 2 (S2).
• degree (int): Angle in degrees (default: 0-180).

Returns:

True on success, False on failure.

Example:

l9110.control_servo(1, 150)  # Servo 1 to 150°
l9110.control_servo(2, 90)   # Servo 2 to 90°

3. Control DC Motors

Use control_motor() to set motor speed and direction.

Args:

• motor_id (int): 0 (MA) or 1 (MB).
• percent (float): Speed as a percentage (0-100).
• direction (int): 0 (CW) for clockwise, 1 (CCW) for counterclockwise.

Returns:

True on success, False on failure.

Example:

l9110.control_motor(0, 50, 0)  # Motor A, 50%, clockwise
l9110.control_motor(1, 70, 1)  # Motor B, 70%, counterclockwise

4. Change I2C Address

Update the device’s I2C address with set_address().

Args:

• new_address (byte): New address (0x40-0x44).

Returns:

True on success, False on failure.

Example:

l9110.set_address(0x42)
# Output: "Set address successful. New address: 0x42"

5. Customize Servo Range

Set new range degree.

using set_range_degree(min_degree, max_degree) to set new range degree for servo motor

Args:

• min_degree(int): (0-359).
• max_degree(int): (1-360).

Example:

l9110.set_range_degree(0, 270)

Set new range pulse.

using set_range_pulse(min_pulse, max_pulse) to set new range degree for servo motor

Args:

• min_pulse(int): (0-2814).
• max_pulse(int): (1-2815).

Example:

l9110.set_range_pulse(600, 2400)