def __init__(self, digits, segments):
self.digits = digits
self.segments = segments
self.window_size = len(digits)
lines = self.digits + self.segments
defaults = ((1, ) * len(self.digits) + (0, ) * len(self.segments))
GPIOHandle.__init__(
self,
lines,
defaults=defaults,
mode="out",
)
self.state = None
class Sonar():
def __init__(self, echo_pin, trigger_pin):
self.echo_pin = echo_pin
self.trigger_pin = trigger_pin
self.trigger_handle = GPIOHandle((self.trigger_pin,), mode="out")
self.echo_handle = GPIOEventHandle(self.echo_pin, mode="both")
def trigger(self):
self.trigger_handle.flip()
self.trigger_handle.flip()
def measure(self):
self.trigger()
start = self.echo_handle.get()[0]
print("Start", start)
stop = self.echo_handle.get()[0]
print("Stop", stop)
return (stop - start)*340.0/2.0
import os
import json
import asyncio
from aiohttp.web import (Application, Response, WebSocketResponse, WSMsgType,
run_app, FileResponse)
from gpiodev import GPIOHandle
HOST = os.getenv('HOST', '0.0.0.0')
PORT = int(os.getenv('PORT', 8080))
# GPIO pin numbers for your board
GPIO_LINES = (18, 4)
gpio_led = GPIOHandle(GPIO_LINES, mode="out")
async def index_handler(request):
'''
send static index file
'''
return FileResponse('./static/index.html')
async def websocket_handler(request):
'''
use websocket to handle button clicks/LED changes
'''
resp = WebSocketResponse()
ok, protocol = resp.can_prepare(request)
if not ok:
def __init__(self, echo_pin, trigger_pin):
self.echo_pin = echo_pin
self.trigger_pin = trigger_pin
self.trigger_handle = GPIOHandle((self.trigger_pin,), mode="out")
self.echo_handle = GPIOEventHandle(self.echo_pin, mode="both")
from gpiodev import GPIOHandle
import time
RedLED = GPIOHandle((19, ), mode="out")
Button = GPIOHandle((18, ), mode="in")
while True:
state = Button.get_values()[0]
print(state)
RedLED.set_values((state, ))
time.sleep(0.1)
from gpiodev import GPIOHandle
import time
RedBlueLED = GPIOHandle((26, 21))
print(RedBlueLED.get_values())
states = [
(1, 0),
(0, 1),
(1, 1),
]
for state in states:
RedBlueLED.set_values(state)
print(RedBlueLED.get_values())
time.sleep(5)