import time
import board
import neopixel
from adafruit_circuitplayground.express import cpx
SERVO_PIN = board.A2
BUTTON_A = board.BUTTON_A
BUTTON_B = board.BUTTON_B
NUM_LEDS = 10
FULL_CIRCLE = 20
pixels = neopixel.NeoPixel(board.NEOPIXEL, NUM_LEDS, brightness=0.2)
servo = cpx.servo(SERVO_PIN)
fullCircleMode = False
currentStop = 0
def setLEDs():
for i in range(NUM_LEDS):
if i == currentStop:
pixels[i] = (0, 0, 255) # Current stop LED (blue)
elif i < currentStop:
pixels[i] = (255, 0, 0) # Visited stop LED (red)
else:
pixels[i] = (0, 0, 0) # Unvisited stop LED (off)
pixels.show()
def flashCurrentStop():
for _ in range(5):
pixels[currentStop] = (0, 255, 0) # Flash current stop LED (green)
pixels.show()
time.sleep(0.2)
pixels[currentStop] = (0, 0, 0)
pixels.show()
time.sleep(0.2)
def rotateTurntable(angle):
servo.angle = angle
def checkButtons():
if cpx.button_a:
if cpx.button_b:
# Both buttons pressed - enter full circle mode
fullCircleMode = True
else:
# Button A pressed - move to next stop
currentStop = (currentStop + 1) % (FULL_CIRCLE if fullCircleMode else NUM_LEDS)
setLEDs()
flashCurrentStop()
elif cpx.button_b:
# Button B pressed - move to previous stop
currentStop = (currentStop - 1 + (FULL_CIRCLE if fullCircleMode else NUM_LEDS)) % (FULL_CIRCLE if fullCircleMode else NUM_LEDS)
setLEDs()
flashCurrentStop()
# Setup
currentStop = 0
fullCircleMode = False
setLEDs()
while True:
checkButtons()
if fullCircleMode:
# Full circle mode
targetAngle = int(map(currentStop, 0, FULL_CIRCLE, 0, 180))
rotateTurntable(targetAngle)
else:
# Half circle mode
targetAngle = int(map(currentStop, 0, NUM_LEDS, 0, 180))
rotateTurntable(targetAngle)
Can someone help to figure out why This code won't work? I can get the servo to turn fine using the following code but I want to get the code above to work and be able to stop/ start and change from half (180) to full circle (360) modes and have the EDS change accordingly. Any help would be greatly appreciated. Jason
# SPDX-FileCopyrightText: 2019 Anne Barela for Adafruit Industries
#
# SPDX-License-Identifier: MIT
"""CircuitPython Essentials Servo continuous rotation servo example"""
import time
import board
import pwmio
from adafruit_motor import servo
# create a PWMOut object on Pin A2.
pwm = pwmio.PWMOut(board.A2, frequency=50)
# Create a servo object, my_servo.
my_servo = servo.ContinuousServo(pwm)
while True:
print("forward")
my_servo.throttle = 0.0
time.sleep(1.0)
print("stop")
my_servo.throttle = 0.0
time.sleep(2.0)
print("reverse")
my_servo.throttle = 0.0
time.sleep(1.0)
print("stop")
my_servo.throttle = 0.0
time.sleep(4.0)