To use with CircuitPython, you need to first install a few libraries, into the lib folder on your CIRCUITPY drive. Then you need to update code.py with the example script.
Thankfully, we can do this in one go. In the example below, click the Download Project Bundle button below to download the necessary libraries and the code.py file in a zip file. Extract the contents of the zip file, open the directory PyRuler_Simon_Game/ and then click on the directory that matches the version of CircuitPython you're using and copy the contents of that directory to your CIRCUITPY drive.
Your CIRCUITPY drive should now look similar to the following image:
# SPDX-FileCopyrightText: 2019 Isaac Wellish for Adafruit Industries
#
# SPDX-License-Identifier: MIT
"""
This example runs the 'Simon' game on the PyRuler.
Memorize each led sequence and tap the corresponding
touch pads on the pyruler to advance to each new sequence.
Code adapted from Miguel Grinberg's Simon game for Circuit Playground Express
"""
import time
import random
import board
from rainbowio import colorwheel
from digitalio import DigitalInOut, Direction
import touchio
import adafruit_dotstar
# Initialize dot star led
pixels = adafruit_dotstar.DotStar(board.APA102_SCK, board.APA102_MOSI,
1, brightness=0.1)
red = (255,0,0)
green = (0,255,0)
blue = (0,0,255)
led = DigitalInOut(board.D13)
led.direction = Direction.OUTPUT
touches = [DigitalInOut(board.CAP0)]
for p in (board.CAP1, board.CAP2, board.CAP3):
touches.append(touchio.TouchIn(p))
leds = []
for p in (board.LED4, board.LED5, board.LED6, board.LED7):
led = DigitalInOut(p)
led.direction = Direction.OUTPUT
leds.append(led)
cap_touches = [False, False, False, False]
def rainbow_cycle(wait):
for j in range(255):
for i in range(len(pixels)):
rc_index = (i * 256 // len(pixels)) + j
pixels[i] = colorwheel(rc_index & 255)
time.sleep(wait)
def read_caps():
t0_count = 0
t0 = touches[0]
t0.direction = Direction.OUTPUT
t0.value = True
t0.direction = Direction.INPUT
# funky idea but we can 'diy' the one non-hardware captouch device by hand
# by reading the drooping voltage on a tri-state pin.
t0_count = t0.value + t0.value + t0.value + t0.value + t0.value + \
t0.value + t0.value + t0.value + t0.value + t0.value + \
t0.value + t0.value + t0.value + t0.value + t0.value
cap_touches[0] = t0_count > 2
cap_touches[1] = touches[1].raw_value > 3000
cap_touches[2] = touches[2].raw_value > 3000
cap_touches[3] = touches[3].raw_value > 3000
return cap_touches
def timeout_touch(timeout=3):
start_time = time.monotonic() # start 3 second timer waiting for user input
while time.monotonic() - start_time < timeout:
caps = read_caps()
for i,c in enumerate(caps):
if c:
return i
def light_cap(cap, duration=0.5):
# turn the LED for the selected cap on
leds[cap].value = True
time.sleep(duration)
leds[cap].value = False
time.sleep(duration)
def play_sequence(seq):
duration = max(0.1, 1 - len(sequence) * 0.05)
for cap in seq:
light_cap(cap, duration)
def read_sequence(seq):
pixels.fill(green)
for cap in seq:
if timeout_touch() != cap:
# the player made a mistake!
return False
light_cap(cap, 0.5)
return True
while True:
# led light sequence at beginning of each game
pixels.fill(blue)
time.sleep(1)
for led in leds:
led.value = True
time.sleep(0.25)
for led in leds:
led.value = False
sequence = []
while True:
pixels.fill(blue) # blue for showing user sequence
time.sleep(1)
sequence.append(random.randint(0, 3)) # add new light to sequence each time
play_sequence(sequence) # show the sequence
if not read_sequence(sequence): # if user inputs wrong sequence, gameover
# game over, make dot star red
pixels.fill(red)
time.sleep(3)
print("gameover")
break
else:
print("Next sequence unlocked!")
rainbow_cycle(0) # Dot star animation after each correct sequence
pixels.fill(0)
time.sleep(1)
Page last edited January 20, 2025
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