def setup(pin):
"""
Setup GPIO pin
"""
GPIO.setmode(GPIO.BOARD)
GPIO.setup(pin, GPIO.OUT)
GPIO.setwarnings(False)
def gpio_setup():
"""
Setup GPIO_PIN as PWM input and start fan
"""
try:
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BOARD)
GPIO.setup(GPIO_PIN, GPIO.OUT)
fan = GPIO.PWM(GPIO_PIN, PWM_FREQ)
return fan
except IndexError:
print('\n Error: Pin "{0}" does not exist.\n')
sys.exit(2)
else:
print('\n Error: Could not setup GPIO pin "{0}".\n'.format(GPIO_PIN))
sys.exit(4)
def __init__(self):
# rospy.init_node("spinny")
self.command_topic = '/motor_speed'
self.sub = rospy.Subscriber(self.command_topic, Int32,
self.speed_callback)
print("Setting up GPIO pins")
# rospy.on_shutdown(self.shut)
self.pwm_pin = 16
self.power_pin = 18
GPIO.setwarnings(True)
GPIO.setmode(GPIO.BOARD)
GPIO.setup(self.pwm_pin, GPIO.OUT)
GPIO.setup(self.power_pin, GPIO.OUT, initial=GPIO.HIGH)
print("Starting PWM output")
self.p = GPIO.PWM(self.pwm_pin, 50)
self.p.start(0)
print("GPIO.IN " + str(GPIO.IN))
print("GPIO.HIGH " + str(GPIO.HIGH))
print("GPIO.LOW " + str(GPIO.LOW))
print("GPIO.PUD_UP " + str(GPIO.PUD_UP))
print("GPIO.PUD_DOWN " + str(GPIO.PUD_DOWN))
print("GPIO.VERSION " + str(GPIO.VERSION))
print("GPIO.RPI_INFO " + str(GPIO.RPI_INFO))
# Set Variables
var_gpio_out = 82
var_gpio_in = 81
# GPIO Setup
GPIO.setwarnings(True)
GPIO.setmode(GPIO.ROCK)
GPIO.setup(var_gpio_out, GPIO.OUT, initial=GPIO.HIGH) # Set up GPIO as an output, with an initial state of HIGH
GPIO.setup(var_gpio_in, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Set up GPIO as an input, pullup enabled
# Test Output
print("")
print("Testing GPIO Input/Output:")
var_gpio_state = GPIO.input(var_gpio_out) # Return state of GPIO
print("Output State : " + str(var_gpio_state)) # Print results
sleep(1)
GPIO.output(var_gpio_out, GPIO.LOW) # Set GPIO to LOW
# Test PWM Output
p=GPIO.PWM(var_gpio_out, 60) # Create PWM object/instance
print("")
# The RockPro version of the library seems to return strings not ints - is this
# intended behavior?
HIGH = "1"
LOW = "0"
#LED_PIN = 27
#BUTTON_PIN = 4
LED_PIN = 16
BUTTON_PIN = 13
GPIO.setmode(GPIO.BOARD)
GPIO.setrock('ROCKPRO64')
GPIO.setwarnings(False);
GPIO.setup(LED_PIN, GPIO.OUT)
GPIO.output(LED_PIN, GPIO.LOW)
led_state = False
time.sleep(1)
GPIO.setup(BUTTON_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
class MyHandlerForHTTP(BaseHTTPRequestHandler):
"""
Handler for HTTP messages
"""
def do_GET(self):
global led_state
# pylint: disable=invalid-name
"""
#!/usr/bin/env python
import R64.GPIO as GPIO
from time import sleep
import rospy
from std_msgs.msg import Int32
pwm_pin=16
power_pin=18
GPIO.setwarnings(True)
GPIO.setmode(GPIO.BOARD)
GPIO.setup(pwm_pin, GPIO.OUT)
GPIO.setup(power_pin, GPIO.OUT, initial=GPIO.HIGH)
print("Starting PWM output")
p=GPIO.PWM(pwm_pin,50)
p.start(0)
def speed_callback(msg):
num = msg.data
p.ChangeDutyCycle(num)
print("Changing Duty Cycle")
print(num)
if __name__ == "__main__":
rospy.init_node("spinny")
print("Setting up GPIO pins")
#!/usr/bin/env python
# Allison Creely, 2018, LGPLv3 License
# Rock 64 GPIO Library for Python
import R64.GPIO as GPIO
from time import sleep
# Set Variables
var_gpio_out = 16
# GPIO Setup
GPIO.setwarnings(True)
GPIO.setmode(GPIO.BOARD)
GPIO.setup(var_gpio_out, GPIO.OUT, initial=GPIO.HIGH
) # Set up GPIO as an output, with an initial state of HIGH
# Test Output
print("")
print("Testing GPIO Input/Output:")
while True:
print("On")
GPIO.output(var_gpio_out, GPIO.HIGH)
sleep(1)
print("Off")
GPIO.output(var_gpio_out, GPIO.LOW)
sleep(1)
# NOTE: the R64GPIO package doesn't support "add_event_detect", so we can't use callbacks
# Initialize
GPIO.cleanup()
GPIO.setmode(GPIO.BOARD)
PCB = 10
RESET = 3
POWER = 5
LED = 7
FAN = 8
# Tell the script if this is running on a ROCK64 or ROCKPRO64
GPIO.setrock("ROCK64")
# Setup
GPIO.setup(PCB, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(RESET, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(POWER, GPIO.IN)
GPIO.setup(LED, GPIO.OUT)
GPIO.setup(FAN, GPIO.OUT)
IGNORE_PWR_OFF = False
if(GPIO.input(POWER) == "0"):
# System was started with power switch off
IGNORE_PWR_OFF = True
# Turn on LED AND FAN
GPIO.output(LED, GPIO.HIGH)
GPIO.output(FAN, GPIO.HIGH)
# Function that blinks LED once when button press is detected
def Blink_LED():
import R64.GPIO as GPIO from time import sleep GPIO.setmode(GPIO.BOARD) GPIO.setup(16, GPIO.OUT) GPIO.setup(18, GPIO.OUT, initial=GPIO.HIGH) p = GPIO.PWM(16, 50) p.start(0) sleep(5) p.ChangeDutyCycle(20) sleep(5) p.ChangeDutyCycle(40) sleep(5) p.ChangeDutyCycle(60) sleep(5) p.ChangeDutyCycle(80) sleep(5) p.ChangeDutyCycle(98) sleep(5) p.stop() GPIO.cleanup()
#!/usr/bin/python
from flask import request
from flask_api import FlaskAPI
import R64.GPIO as GPIO
import config
import time
LEDS = {"trigger": 16}
#LEDS = {"green": 16}
GPIO.setmode(GPIO.BOARD)
GPIO.setup(LEDS["trigger"], GPIO.OUT)
#GPIO.setup(LEDS["red"], GPIO.OUT)
app = FlaskAPI(__name__)
@app.route('/', methods=["GET"])
def api_root():
return {
"led_url": request.url + "led/(trigger | green | red)/",
"led_url_POST": {
"state": "(0 | 1)"
}
}
@app.route('/led/<color>/', methods=["GET", "POST"])
def api_leds_control(color):
if request.method == "POST":
if color in LEDS:
