def api_leds_control(color):
if request.method == "POST":
if color in LEDS:
mod = (int(request.data.get("state")) + 1) % 2
GPIO.output(LEDS[color], int(request.data.get("state")))
time.sleep(0.2)
GPIO.output(LEDS[color], int(mod))
return {color: GPIO.input(LEDS[color])}
def fan_switch(state):
"""
Switch fan ON or OFF
"""
try:
fan_state = int(GPIO.input(PIN))
# Check if fan is already in the desired state
if fan_state != state:
GPIO.output(PIN, state)
except Exception as gpio_err:
logging.error('GPIO exception: %s', gpio_err)
def do_GET(self):
global led_state
# pylint: disable=invalid-name
"""
Called when a GET request is made
"""
if self.path == "/on":
GPIO.output(LED_PIN, GPIO.HIGH)
led_state = True
self.send_response(200)
self.end_headers()
mqttc.publish(MQTT_STATE, payload=MQTT_ON, retain=True)
elif self.path == "/off":
GPIO.output(LED_PIN, GPIO.LOW)
led_state = False
self.send_response(200)
self.end_headers()
mqttc.publish(MQTT_STATE, payload=MQTT_OFF, retain=True)
elif self.path == "/toggle":
if led_state:
GPIO.output(LED_PIN, GPIO.LOW)
led_state = False
else:
GPIO.output(LED_PIN, GPIO.HIGH)
led_state = True
self.send_response(200)
self.end_headers()
mqttc.publish(MQTT_STATE, payload=(MQTT_ON if led_state else MQTT_OFF), retain=True)
elif self.path == "/status":
self.send_response(200)
self.send_header('Content-Type', 'application/json')
self.end_headers()
json_str = json.dumps({"led": led_state})
self.wfile.write(json_str.encode(encoding='utf_8'))
def main():
"""
Run temperature check every 3 seconds untill stopped by user
"""
try:
logging.info('Started fan service...')
setup(PIN)
while True:
temp = get_temp()
check_temp(temp, MIN_TEMP, MAX_TEMP)
sleep(2)
except KeyboardInterrupt:
logging.info('Stopped fan service...')
finally:
fan_switch(GPIO.LOW)
GPIO.cleanup(PIN)
def main():
"""
Run temperature control service
"""
try:
old_temp, old_speed = 0, 0
fan = gpio_setup()
fan.start(MIN_SPEED)
logging.info('Started temperature control service...')
while True:
temp, speed = temp_ctrl(fan, old_temp, old_speed)
old_temp, old_speed = temp, speed
sleep(INTERVAL)
except KeyboardInterrupt:
fan.stop()
logging.info('Stopped temperature control service.')
else:
fan.stop()
logging.error('Unexpected error occurred, please check script.')
finally:
GPIO.cleanup(GPIO_PIN)
def setup(pin):
"""
Setup GPIO pin
"""
GPIO.setmode(GPIO.BOARD)
GPIO.setup(pin, GPIO.OUT)
GPIO.setwarnings(False)
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)
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 mqtt_on_message(client, userdata, msg):
"""
Handle commands coming in through MQTT
"""
global led_state
# pylint: disable=unused-argument
print("MQTT Command Received")
print("MQTT Command:" +msg.topic+" "+msg.payload.decode())
if msg.payload.decode() == MQTT_ON:
GPIO.output(LED_PIN, GPIO.HIGH)
led_state = True
mqttc.publish(MQTT_STATE, payload=MQTT_ON, retain=True)
elif msg.payload.decode() == MQTT_OFF:
GPIO.output(LED_PIN, GPIO.LOW)
led_state = False
mqttc.publish(MQTT_STATE, payload=MQTT_OFF, retain=True)
elif msg.payload.decode() == MQTT_TOGGLE:
if led_state:
GPIO.output(LED_PIN, GPIO.LOW)
led_state = False
else:
GPIO.output(LED_PIN, GPIO.HIGH)
led_state = True
mqttc.publish(MQTT_STATE, payload=(MQTT_ON if led_state else MQTT_OFF), retain=True)
def run(self):
global led_state
"""
Infinite loop waiting on button presses
"""
print("Starting button thread")
while True:
while GPIO.input(BUTTON_PIN) == HIGH:
time.sleep(0.01) # wait 10 ms to give CPU chance to do other things
print("Button Pressed")
if led_state:
GPIO.output(LED_PIN, GPIO.LOW)
led_state = False
else:
GPIO.output(LED_PIN, GPIO.HIGH)
led_state = True
mqttc.publish(MQTT_STATE, payload=(MQTT_ON if led_state else MQTT_OFF), retain=True)
while GPIO.input(BUTTON_PIN) == LOW:
time.sleep(0.01) # wait 10 ms to give CPU chance to do other things
print("Button Released")
print("Exiting button thread")
MQTT_ON = "ON"
MQTT_OFF = "OFF"
MQTT_TOGGLE = "TOGGLE"
# 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
"""
#!/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)
def Blink_LED(): GPIO.output(LED, GPIO.LOW) time.sleep(0.2) GPIO.output(LED, GPIO.HIGH)
#!/usr/bin/python -u
# Author: Mrfixit2001 - Enables LED and Monitors for the buttons on the Kintaro SNES Case and ROSHAMBO Case
import time
import os
import subprocess
import string
import R64.GPIO as GPIO
# 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
print("GPIO.BCM " + str(GPIO.BCM))
print("GPIO.OUT " + str(GPIO.OUT))
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 = 16
var_gpio_in = 18
# 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
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 Input
var_gpio_state = GPIO.input(var_gpio_in) # Return state of GPIO
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))
print("")
print("Testing GPIO Input/Output:")
# Set Variables
var_gpio_out1 = 16
var_gpio_in1 = 18
# GPIO Setup
GPIO.setwarnings(True)
GPIO.setmode(GPIO.BOARD)
# Test Output
GPIO.setup(var_gpio_out1, GPIO.OUT, initial=GPIO.HIGH
) # Set up GPIO as an output, with an initial state of HIGH
var_gpio_state = GPIO.input(var_gpio_out1) # Return state of GPIO
print("Output State : " + str(var_gpio_state)) # Print results
sleep(0.5)
GPIO.output(var_gpio_out1, GPIO.LOW) # Set GPIO to LOW
GPIO.cleanup(var_gpio_out1) # Cleanup GPIO
# Test Input
GPIO.setup(var_gpio_in1, GPIO.IN,
pull_up_down=GPIO.PUD_UP) # Set up GPIO as an input, pullup enabled
var_gpio_state = GPIO.input(var_gpio_in1) # Return state of GPIO
#!/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:
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()
print("GPIO.BCM " + str(GPIO.BCM))
print("GPIO.OUT " + str(GPIO.OUT))
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
# Frank Mankel, 2018, LGPLv3 License
# Rock 64 GPIO Library for Python
# Thanks Allison! Thanks smartdave!
import R64.GPIO as GPIO
from time import sleep
print("Output Test R64.GPIO Module...")
# Set Variables
var_gpio_out = 36 # Pin 16 - 148 is Pin 8, 149 is Pin 18
#var_gpio_in = 18
# 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:")
while True:
var_gpio_state = GPIO.input(var_gpio_out) # Return State of GPIO
print("Output State: " + str(var_gpio_state))
if var_gpio_state == 1:
GPIO.output(var_gpio_out,0) # Set GPIO to LOW
print("Turning off") # Print results
else: