# PiLowLib is free software: you can redistribute it and/or modify # it under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # PiLowLib is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public License # along with PiLowLib. If not, see <http://www.gnu.org/licenses/>. # This example shows how to configure and control # the first general purpose clock (GPCLK0) in a Raspberry PI using PiLowLib, # setting the clock output to GPIO number 4. from pilowlib import funcs, clock # sets the GPIO pin 4 to GPCLK0 funcs.set_gpio_func(4, funcs.GPCLK0) # set the GPCLK0 source to oscillator (said to be 19.2 MHz), # and the divider to 32, resulting a 19.2MHz/32 = 600KHz clock.configure(0, clock.SRC_OSC, 32) # start the GPCLK0 peripheral clock.start(0)
# but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public License # along with PiLowLib. If not, see <http://www.gnu.org/licenses/>. # This example shows how to configure and control # the first PWM peripheral (PWM0) in a Raspberry PI using PiLowLib, # setting the PWM output to GPIO number 18. from pilowlib import funcs, pwm, clock # sets the GPIO pin 18 to PWM0 funcs.set_gpio_func(18, funcs.PWM0) # configures PWM0 with the default settings (plain PWM) pwm.configure(0) # set the PWM clock source to oscillator (said to be 19.2 MHz), # and the divider to 32, resulting a 19.2MHz/32 = 600KHz pwm.configure_clock(clock.SRC_OSC, 32) # set the range to 1024 and the data to 512 for PWM0, # resulting in a duty cycle of 50% pwm.set_range(0, 1024) pwm.set_data(0, 512) # start the PWM0 peripheral pwm.start(0)
# PiLowLib is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with PiLowLib. If not, see <http://www.gnu.org/licenses/>.
# This example shows how to configure and read/write two GPIO pins (18 and 23),
# one as a digital output and the other as a digital input.
from pilowlib import funcs, digital
# sets the GPIO pin 18 to digital out
funcs.set_gpio_func(18, funcs.DIGITAL_OUT)
# sets the GPIO pin 23 to digital in
funcs.set_gpio_func(23, funcs.DIGITAL_IN)
# sets the GPIO pin 18 to 'high'
digital.set_value(18, True)
# reads the level of the GPIO pin 23
value = digital.get_value(23)
if value:
print("GPIO 23 is high")
else:
print("GPIO 23 is low")