# CircuitPython 3.0 CRICKIT demo
from digitalio import DigitalInOut, Direction, Pull
from adafruit_seesaw.seesaw import Seesaw
from adafruit_seesaw.pwmout import PWMOut
from adafruit_motor import servo, motor
from busio import I2C
import board
import time
import gc
i2c = I2C(board.SCL, board.SDA)
ss = Seesaw(i2c)
print("Crickit demo!")
# use the CPX onboard switch to turn on/off (helps calibrate)
switch = DigitalInOut(board.SLIDE_SWITCH)
switch.direction = Direction.INPUT
switch.pull = Pull.UP
#################### 4 Servos
servos = []
for ss_pin in (17, 16, 15, 14):
pwm = PWMOut(ss, ss_pin)
pwm.frequency = 50
_servo = servo.Servo(pwm)
_servo.angle = 90 # starting angle, middle
servos.append(_servo)
#################### 2 DC motors
motors = []
for ss_pin in ((22, 23), (18, 19)):
pwm0 = PWMOut(ss, ss_pin[0])
pwm1 = PWMOut(ss, ss_pin[1])
_motor = motor.DCMotor(pwm0, pwm1)
motors.append(_motor)
servos[0].angle = 180
while True:
if switch.value:
# Switch is on, activate MUSIC POWER!
# motor forward slowly
motors[0].throttle = 0.2
# mote the head forward slowly, over 0.9 seconds
for a in range(180, 90, -1):
servos[0].angle = a
time.sleep(0.01)
# motor stop
motors[0].throttle = 0
time.sleep(1)
# motor backwards slowly
motors[0].throttle = -0.2
# move the head back slowly too, over 0.9 seconds
for a in range(90, 180):
servos[0].angle = a
time.sleep(0.01)
# calibration! its a *tiny* bit slower going back so give it a few ms
time.sleep(0.007)
# motor stop
motors[0].throttle = 0
time.sleep(1)
else:
# switch is 'off' so dont do anything!
pass
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