Hello,
I know there is a lot going on in the development world right now.
...
Does the MotorCape still work on the 4GB SD IoT image on
http://beagleboard.org/latest-images?
I have some source I was trying to use w/ radio buttons via html and flask
w/ Adafruit_BBIO.
The source used to work. I have not been able to figure out why it does not
work any longer.
If things are changing and dev. need whatever to take place, okay. I would
still like to harden some learned skills from the past and promote those
skills now currently.
Seth
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from flask import Flask, render_template
import Adafruit_BBIO.GPIO as GPIO
import Adafruit_BBIO.PWM as PWM
from rangeI import Range
sonar = Range("/dev/ttyS2")
class Motor:
def __init__(self, dir_pin, pwm_pin, pwm_freq):
self.dir_pin = dir_pin
self.pwm_pin = pwm_pin
self.value = 0
PWM.start(pwm_pin, 0, pwm_freq)
GPIO.setup(dir_pin, GPIO.OUT)
def set(self, value):
if value == self.value:
return
assert -100 <= value <= 100
if (value < 0) != (self.value < 0):
# changing direction
PWM.set_duty_cycle(self.pwm_pin, 0)
GPIO.output(self.dir_pin, value < 0)
PWM.set_duty_cycle(self.pwm_pin, abs(value))
self.value = value
motor1 = Motor(dir_pin="P8_18", pwm_pin="P9_16", pwm_freq=2000)
motor2 = Motor(dir_pin="P8_16", pwm_pin="P9_14", pwm_freq=2000)
motor3 = Motor(dir_pin="P8_14", pwm_pin="P8_13", pwm_freq=2000)
motor4 = Motor(dir_pin="P8_26", pwm_pin="P8_19", pwm_freq=2000)
def set_motors( v1, v2, v3, v4 ):
motor1.set( v1 )
motor2.set( v2 )
motor3.set( v3 )
motor4.set( v4 )
app = Flask(__name__)
@app.route("/")
def homepage( title="homepage" ):
return render_template( "BootI.html", title=title )
@app.route("/distance")
def distance():
distance = sonar.measure()
print("distance =", distance, "inch")
if distance < 8:
set_motors( 0, 0, 0, 0 )
print("Stopping Motors!")
return homepage( title="distance" )
def add_motors_route( state, v1, v2, v3, v4 ):
@app.route( "/" + state, endpoint=state )
def handler():
set_motors( v1, v2, v3, v4 )
return homepage( title=state )
add_motors_route( "F", 100, 100, 100, 100 )
add_motors_route( "L", 15, 85, 15, 85 )
add_motors_route( "R", 85, 15, 85, 15 )
add_motors_route( "S", 0, 0, 0, 0 )
add_motors_route( "REV", -75, -75, -75, -75 )
add_motors_route( "REV_L", -75, -25, -75, -25 )
add_motors_route( "REV_R", -25, -75, -25, -75 )
add_motors_route( "SPIN_LEFT", 100, -100, 100, -100 )
add_motors_route( "SPIN_RIGHT", -100, 100, -100, 100 )
if __name__ == "__main__":
app.run(host="0.0.0.0", port=5000, debug=False)
