Introduction
This convenience library makes coding for the Crickit robotics boards simpler and shorter.
Dependencies
This driver depends on:
Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.
Installing from PyPI
On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI. To install for current user:
pip3 install adafruit-circuitpython-crickitTo install system-wide (this may be required in some cases):
sudo pip3 install adafruit-circuitpython-crickitTo install in a virtual environment in your current project:
mkdir project-name && cd project-name
python3 -m venv .venv
source .venv/bin/activate
pip3 install adafruit-circuitpython-crickitUsage Example
This examples shows how to control all the devices supported by the library. In most cases you just need a couple of imports.
# This is a mock example showing typical usage of the library for each kind of device.
from adafruit_crickit import crickit
# Add this import if using stepper motors.
# It will expose constants saying how to step: stepper.FORWARD, stepper.BACKWARD, etc.
from adafruit_motor import stepper
# Set servo 1 to 90 degrees
crickit.servo_1.angle = 90
# Change servo settings.
crickit.servo_1.actuation_range = 135
crickit.servo_1.set_pulse_width_range(min_pulse=850, max_pulse=2100)
# You can assign a device to a variable to get a shorter name.
servo_2 = crickit.servo_2
servo_2.throttle = 0
# Run a continous servo on Servo 2 backwards at half speed.
crickit.continuous_servo_2.throttle = -0.5
# Run the motor on Motor 1 terminals at half speed.
crickit.dc_motor_1.throttle = 0.5
# Set Drive 1 terminal to 3/4 strength.
crickit.drive_1.fraction = 0.75
if crickit.touch_1.value:
print("Touched terminal Touch 1")
# A single stepper motor uses up all the motor terminals.
crickit.stepper_motor.onestep(direction=stepper.FORWARD)
# You can also use the Drive terminals for a stepper motor
crickit.drive_stepper_motor.onestep(direction=stepper.BACKWARD)
# Note: On CPX Crickit, NeoPixel pin is normally connected to A1, not to seesaw,
# so this part of the demo cannot control the NeoPixel terminal.
# Strip or ring of 8 NeoPixels
crickit.init_neopixel(8)
crickit.neopixel.fill((100, 100, 100))
# Set the Crickit's on-board NeoPixel to a dim purple.
crickit.onboard_pixel.brightness = 0.01
crickit.onboard_pixel[0] = (255, 24, 255)
# or
crickit.onboard_pixel.fill((255, 24, 255))Documentation
API documentation for this library can be found on Read the Docs.
For information on building library documentation, please check out this guide.
Contributing
Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.
1 maintainer
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