def init():
# servoMin = 150 # Min pulse length out of 4096
# servoMax = 600 # Max pulse length out of 4096
pwm = PWM(0x40)
# pwm = PWM(0x40, debug=True)
pwm.setPWMFreq(60) # Set frequency to 60 Hz
# pwm.setPWM(0, 0, 450) #medium
return pwm
def main():
print("i2c test")
pwm = PWM(address=0x40, debug=True)
#!/usr/bin/python
import time
from Sunfounder_PWM_Servo_Driver import PWM
pwm = PWM(0x40)
pwm.setPWMFreq(60)
# Min found around 150
# Max found around 700
servoMin = 150
servoMax = 700
servoMid = servoMin + (servoMax - servoMin) / 2
debug = False
mouthChannel = 0
headChannel = 4
def log(string):
if debug:
print string
return
def setServoValue(channel, value):
pwm.setPWM(channel, 0, value)
log("Setting channel " + str(channel) + " to " + str(value))
return
#!/usr/bin/python
from Sunfounder_PWM_Servo_Driver import PWM
import time
# ===========================================================================
# Example Code
# ===========================================================================
# Initialise the PWM device using the default address
#pwm = PWM(0x40)
# Note if you'd like more debug output you can instead run:
pwm = PWM(0x40, debug=True)
servoMin = 150 # Min pulse length out of 4096
servoMax = 600 # Max pulse length out of 4096
def setServoPulse(channel, pulse):
pulseLength = 1000000 # 1,000,000 us per second
pulseLength /= 5 # 50 Hz
print("%d us per period" % pulseLength)
pulseLength /= 4096 # 12 bits of resolution
print("%d us per bit" % pulseLength)
pulse *= 1000
pulse /= pulseLength
pwm.setPWM(channel, 0, int(pulse))
def setServo(position):
servoMin = 105
servoMax = 525
#!/usr/bin/python import time from Sunfounder_PWM_Servo_Driver import PWM pwm = PWM(0x40, True) pwm.setPWMFreq(60) # Min found around 150 # Max found around 700 servoMin = 150 servoMax = 700 print "Hello, servo-world" while (True): # Change speed of continuous servo on channel O pwm.setPWM(0, 0, servoMin) time.sleep(1) pwm.setPWM(0, 0, servoMax) time.sleep(1) print "Looping!"
