2024SP-ELE128L/picow-lab-code/Lab12Code/sensors2cloud2.py

# SPDX-FileCopyrightText: 2022 Liz Clark for Adafruit Industries
# SPDX-License-Identifier: MIT

import os
import time
import ssl
import sys
import wifi
import socketpool
import microcontroller
import board
import busio
import adafruit_requests
import adafruit_ahtx0
import adafruit_dht
from adafruit_io.adafruit_io import IO_HTTP, AdafruitIO_RequestError
from microcontroller import cpu
from analogio import AnalogIn

analog_in0 = AnalogIn(board.A0)  # Pin 31 (Right side, 10 down from top)
analog_in1 = AnalogIn(board.A1)  # Pin 32 (Right side,  9 down from top)


minLightValue = .1
maxLightValue = 2.8

minPotValue = .1
maxPotValue = 3.3


def getAnalogValue(pin):
    return [pin.value,(pin.value * 3.3) / 65536]

def readDHTSensor():
	runFlag = True 
	while runFlag:
		try:
			# Print the values to the serial port
			temperature_c = dhtDevice.temperature
			temperature_f = temperature_c * (9 / 5) + 32
			humidity = dhtDevice.humidity
			print(
				"Temp: {:.1f} F / {:.1f} C    Humidity: {}% ".format(
					temperature_f, temperature_c, humidity
				)
			)
			runFlag = False
	
		except RuntimeError as error:
			# Errors happen fairly often, DHT's are hard to read, just keep going
			print(error.args[0])
			time.sleep(2.0)
			continue
		except Exception as error:
			dhtDevice.exit()
			raise error

	return [temperature_f, humidity, temperature_c]

# Initial the dht device, with data pin connected to:
dhtDevice = adafruit_dht.DHT11(board.GP4)



wifi.radio.connect(os.getenv('CIRCUITPY_WIFI_SSID'), os.getenv('CIRCUITPY_WIFI_PASSWORD'))

aio_username = os.getenv('aio_username')
aio_key = os.getenv('aio_key')

pool = socketpool.SocketPool(wifi.radio)
requests = adafruit_requests.Session(pool, ssl.create_default_context())
# Initialize an Adafruit IO HTTP API object
io = IO_HTTP(aio_username, aio_key, requests)
print("connected to io")

#  use Pico W's GP0 for SDA and GP1 for SCL
#i2c = busio.I2C(board.GP1, board.GP0)
#aht20 = adafruit_ahtx0.AHTx0(i2c)

try:
# get feed
    picowTemp_feed = io.get_feed("mytemperature")
    picowHumid_feed = io.get_feed("myhumidity")
    picowLight_feed = io.get_feed("mylightlevel")
    picowPot_feed = io.get_feed("mypotlevel")
except AdafruitIO_RequestError:
# if no feed exists, create one
    print("Feed error")
    sys.exit(-1)

#  pack feed names into an array for the loop
feed_names = [picowTemp_feed, picowHumid_feed,picowLight_feed,picowPot_feed]
print("feeds created")

clock = 300


while True:
    try:
        #  when the clock runs out..
        if clock > 10:
            #  read sensors
            lightLevel = getAnalogValue(analog_in0)
            scaledLightValue = lightLevel[1]/maxLightValue * 100
            potLevel = getAnalogValue(analog_in1)
            scaledPotValue = potLevel[1]/maxPotValue * 100
            print("Scaled Light Value = ",scaledLightValue)
            print("Scaled Pot   Value = ",scaledPotValue)
    
#            print("light level: ",lightLevel)
#            lightPerCent = lightLevel[1] /3

            dhtData = readDHTSensor()
            
            data = [dhtData[0], dhtData[1], scaledLightValue,scaledPotValue]
            #  send sensor data to respective feeds
            for z in range(4):
                io.send_data(feed_names[z]["key"], data[z])
#                print("sent %0.1f" % data[z])
                time.sleep(1)
            #  print sensor data to the REPL
#            print(type(data[0]), type(data[1]), type(data[2]))
            print(f"{data[0]:.1f}F   {data[1]:.1f}% Humidity  {data[2]:.1f}% Light Level {data[3]:.1f}% Pot Level")
#            print("\nTemperature: %0.1f C" % data[0])
#            print("Humidity: %0.1f %%" % data[1])
#            print("\nLight percent: %0.1f " % data[2])
#            print()

            time.sleep(1)
            #  reset clock
            clock = 0
        else:
            clock += 1
    # pylint: disable=broad-except
    #  any errors, reset Pico W
    except Exception as e:
        print("Error:\n", str(e))
#        print("Resetting microcontroller in 10 seconds")
        time.sleep(3)
#        microcontroller.reset()
    #  delay
    time.sleep(1)
    print(clock)