Code your robot

go(x)

drive forward for x seconds

back(x)

drive backward for x seconds

left(x)

turn left for x seconds

right(x)

turn right for x seconds

meow()

Have your kitty robot say “meow”

purr()

Have your kitty robot purrr (happy kitty!)

beep()

make a beep sound

To use colors, use a value in the colors[] dictionary

colors['c']

use a color (replace c with the name of the color)

for c in colors[]: print c

list all the colors in colors[]

*Note: The color black sets the color to off. This is especially useful for the Neopixels…

The CircuitPlayground board in your robot has ten multi-color LED lights called Neopixels. The Neopixels are numbered starting at 0 (zero) on the light to the left of the USB port, and going around counterclockwise. This means the pixels are numbered 0-9 and not 1-10.

To use them, you specify which pixel (as a number 1-10) you want to work on, and then what color to make it. For example, to set the third LED to blue:

pixels[2] = colors["blue"]

If you want to set all of the pixels, you can use the special fill method. For example, to set all the pixels to purple:

pixels.fill(colors["purple"])

The motion sensor on your CircuitPlayground board is called an accelerometer. They measure movement along the X (side-to-side), Y (forward/backward), and Z (up/down) axis. This requires a little bit of setup in your code, but allows you to do some really cool things!

If you want to see the values coming from the motion sensor, try this code:

import time
import board
import adafruit_lis3dh
import busio
i2c = busio.I2C(board.ACCELEROMETER_SCL, board.ACCELEROMETER_SDA)
lis3dh = adafruit_lis3dh.LIS3DH_I2C(i2c, address=0x19)
lis3dh.range = adafruit_lis3dh.RANGE_8_G
while True:
x, y, z = lis3dh.acceleration
print((x, y, z))
time.sleep(0.1)

There is a light sensor built in to your CircuitPlayground too! While it’s not a camera and can’t actually see, it can detect how much light there is. To read the value of the light sensor into a light variable, use:

import board
import analogio
light = analogio.AnalogIn(board.LIGHT)
print(light.value)

Your CircuitPlayground board has two buttons which you use in your code! The buttons are called Button_A and Button_B. For example, if you want to have Button_A turn on the red LED on your board, use:

import time
import board
import digitalio
led = digitalio.DigitalInOut(board.D13)
led.switch_to_output()
button = digitalio.DigitalInOut(board.BUTTON_A)
button.switch_to_input(pull=digitalio.Pull.DOWN)
while True:
if button.value:
led.value = True
else:
led.value = False
time<span style="color:#f92672">.</span>sleep(<span style="color:#ae81ff">0.01</span>)