and displaying results to the serial port and a 8 digit 7-segment display
the DHT device data wire is connected to board.D2
"""
# import for dht devices and 7-segment display devices
import time
from board import D2, TX, RX, D1
import busio
import digitalio
import adafruit_dht
from adafruit_max7219 import bcddigits
clk = RX
din = TX
cs = digitalio.DigitalInOut(D1)
spi = busio.SPI(clk, MOSI=din)
display = bcddigits.BCDDigits(spi, cs, nDigits=8)
display.brightness(5)
#initial the dht device
dhtDevice = adafruit_dht.DHT22(D2)
while True:
try:
# show the values to the serial port
temperature = dhtDevice.temperature * (9 / 5) + 32
humidity = dhtDevice.humidity
#print("Temp: {:.1f} F Humidity: {}% ".format(temperature, humidity))
# now show the values on the 8 digit 7-segment display
display.clear_all()
display.show_str(0, '{:5.1f}{:5.1f}'.format(temperature, humidity))
import time
import random
from board import TX, RX, A2
import busio
import digitalio
from adafruit_max7219 import bcddigits
mosi = TX
clk = RX
cs = digitalio.DigitalInOut(A2)
spi = busio.SPI(clk, MOSI=mosi)
leds = bcddigits.BCDDigits(spi, cs, nDigits=8)
while True:
# clear display and dim 0
leds.brightness(0)
leds.clear_all()
# place 8-digit number on display
value = 12345678
leds.show_str(0, '{:8}'.format(value))
leds.show()
# increase the brightness slowly
for i in range(16):
leds.brightness(i)
time.sleep(0.5)
leds.brightness(3)
