def main():
"""
Main program function
"""
# create an instance of the PWM class on i2c address 0x40
pwm = PWM(0x40)
# Set PWM frequency to 1 Khz and enable the output
pwm.set_pwm_freq(1000)
pwm.output_enable()
while True:
for count in range(1, 4095, 5):
pwm.set_pwm(1, 0, count)
for count in range(4095, 1, -5):
pwm.set_pwm(1, 0, count)
def main():
"""
Main program function
"""
# create an instance of the PWM class on i2c address 0x40
pwm = PWM(0x40)
# Set PWM frequency to 1 Khz and enable the output
pwm.set_pwm_freq(1000)
pwm.output_enable()
while True:
for count in range(1, 4095, 5):
pwm.set_pwm(1, 0, count)
for count in range(4095, 1, -5):
pwm.set_pwm(1, 0, count)
class servoDriver(object):
servoFrequencyValue = 50
PWMFrequencyValue = 200
def __init__(self):
#creating objects for the PWM and Motor
self.pwm = pulseWidthModulation()
self.ServoMotor = motor()
def pulseWidthModulation(self):
#Pulse Width Modulation(PWM) instatiation
self.pwm = PWM(0x40)
#Sets the PWM to a frequency of 200 Hz
self.pwm.set_pwm_freq(self.PWMFrequencyValue)
#Allow the output to be displayed
self.pwm.output_enable()
#Setting the channel for data stream to 1, time period to 1024 out of 4095.
self.pwm.set_pwm(1, 0, 1024)
def motor(self):
#Instantiation of the servo object
self.servo = Servo(0x40)
#setting frequency for the PWM to interact with the PWM object
self.servo.set_frequency(self.frequencyValuse)
#setting the servo to move
self.servo.move(1, 125, 250)
def set_PWM_frequency(self, value):
self.PWMFrequencyValue = value
self.pwm.set_pwm_freq(self.PWMFrequencyValue)
def get_PWM_frequency(self):
return self.PWMFrequencyValue
def set_servo_frequency(self, value):
self.servoFrequencyValue = value
self.servo.set_frequency(self.servoFrequencyValue)
def get_servo_frequency(self):
return self.servoFrequencyValue
bus.invert_pin(15, 1)
bus.invert_pin(14, 0)
count = 0
dc = 0
while True:
if bus.read_pin(14) == 1:
count += 1
print('\n\nbutton checked ' + str(count) + ' time')
for i in range(1, 6):
bus.write_pin(i, 1)
#sleep(0.1)
print('Read relais 1=' + str(bus.read_pin(16)) + '\nRead relais 2=' +
str(bus.read_pin(15)))
dc = 0
#sleep(0.5)
else:
print('\n\nbutton pressed ')
print('Volt1=' + str(adcdac.read_adc_voltage(1, 0)) + 'Volt2=' +
str(adcdac.read_adc_voltage(2, 0)) + 'ciao ' + str(dc))
if dc >= 4095:
dc = 0
else:
for i in range(1, 4):
pwm.set_pwm(i, dc, 0)
for i in range(1, 6):
bus.write_pin(i, 0)
print('Read relais 1=' + str(bus.read_pin(16)) + '\nRead relais 2=' +
str(bus.read_pin(15)))
dc += 10
#sleep(0.1)
from ServoPi import PWM pwm = PWM(0x41) pwm.set_pwm_freq(1000) ##output_enable() pwm.set_pwm(1, 0, 110)
bus.write_pin(10, 0)
bus.write_pin(10, 1)
bus.write_pin(10, 0)
bus.set_pin_pullup(8, 1)
bus.set_pin_pullup(9, 1)
bus.invert_pin(9, 0)
bus.invert_pin(8, 0)
count = 0
dc = 0
while True:
if bus.read_pin(7) == 1:
count += 1
print('button checked ' + str(count) + ' time')
for i in range(9, 13):
bus.write_pin(i, 1)
sleep(0.1)
bus.write_pin(16, 1)
dc = 0
sleep(0.5)
else:
print('button pressed ')
print('Volt1=' + str(adcdac.read_adc_voltage(1, 0)) + 'Volt2=' +
str(adcdac.read_adc_voltage(2, 0)) + 'ciao ' + str(dc))
pwm.set_pwm(1, 4095 - dc, dc)
for i in range(9, 13):
bus.write_pin(i, 0)
bus.write_pin(16, 0)
dc += 10
sleep(0.1)