Permalink
Cannot retrieve contributors at this time
Fetching contributors…
Cannot retrieve contributors at this time
| # this uses the Adafruit PWM kernel library in their Occidentalis distro | |
| import RPi.GPIO as io | |
| io.setmode(io.BCM) | |
| in1_pin = 4 | |
| in2_pin = 17 | |
| io.setup(in1_pin, io.OUT) | |
| io.setup(in2_pin, io.OUT) | |
| def set(property, value): | |
| try: | |
| f = open("/sys/class/rpi-pwm/pwm0/" + property, 'w') | |
| f.write(value) | |
| f.close() | |
| except: | |
| print("Error writing to: " + property + " value: " + value) | |
| set("delayed", "0") | |
| set("mode", "pwm") | |
| set("frequency", "500") | |
| set("active", "1") | |
| def clockwise(): | |
| io.output(in1_pin, True) | |
| io.output(in2_pin, False) | |
| def counter_clockwise(): | |
| io.output(in1_pin, False) | |
| io.output(in2_pin, True) | |
| clockwise() | |
| while True: | |
| cmd = raw_input("Command, f/r 0..9, E.g. f5 :") | |
| direction = cmd[0] | |
| if direction == "f": | |
| clockwise() | |
| else: | |
| counter_clockwise() | |
| speed = int(cmd[1]) * 11 | |
| set("duty", str(speed)) |