52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
# SPDX-FileCopyrightText: 2019 Dano Wall for Adafruit Industries
|
|
# SPDX-FileCopyrightText: 2019 Anne Barela for Adafruit Industries
|
|
#
|
|
# SPDX-License-Identifier: MIT
|
|
|
|
# Adafruit Grand Central Robot Xylophone Demo Program
|
|
# Dano Wall and Anne Barela for Adafruit Industries
|
|
# MIT License
|
|
|
|
import time
|
|
import board
|
|
from digitalio import DigitalInOut, Direction
|
|
|
|
solenoid_count = 8 # Set the total number of solenoids used
|
|
start_pin = 2 # Start at pin D2
|
|
|
|
# Create the input objects list for solenoids
|
|
solenoid = []
|
|
for k in range(start_pin, solenoid_count + start_pin + 1):
|
|
# get pin # attribute, use string formatting
|
|
this_solenoid = DigitalInOut(getattr(board, "D{}".format(k)))
|
|
this_solenoid.direction = Direction.OUTPUT
|
|
solenoid.append(this_solenoid)
|
|
|
|
STRIKE_TIME = 0.01 # Time between initiating a strike and turning it off
|
|
TIME_BETWEEN = 0.5 # Time between actions in seconds
|
|
|
|
song = [3, 4, 5, 4, 3, 3, 3, 4, 4, 4, 3, 3, 3, 3, 4, 5, 4, 3, 3, 3, 2, 2, 3, 4, 5]
|
|
|
|
def play(key, time_to_strike):
|
|
solenoid[key].value = True
|
|
time.sleep(time_to_strike)
|
|
solenoid[key].value = False
|
|
|
|
def rest(time_to_wait):
|
|
time.sleep(time_to_wait)
|
|
|
|
while True:
|
|
# Play each of the bars
|
|
for bar in range(solenoid_count):
|
|
play(bar, STRIKE_TIME)
|
|
rest(TIME_BETWEEN)
|
|
|
|
time.sleep(1.0) # Wait a bit before playing the song
|
|
|
|
# Play the notes defined in song
|
|
# simple example does not vary time between notes
|
|
for bar in range(len(song)):
|
|
play(song[bar], STRIKE_TIME)
|
|
rest(TIME_BETWEEN)
|
|
|
|
time.sleep(1.0)
|