Raspbery Pi 4BとSCD30センサでCO2濃度、気温、湿度の測定、SPI接続2.8インチTFT液晶に表示

#scd30_sample_TFT_csv.py
#coding: utf-8

#---TFT-ili9341 init-----rgb_display_pillow_stats.py---
import time
import subprocess
import digitalio
import board
from PIL import Image, ImageDraw, ImageFont
from adafruit_rgb_display import ili9341

# Configuration for CS and DC pins (these are PiTFT defaults):
cs_pin = digitalio.DigitalInOut(board.CE0)
dc_pin = digitalio.DigitalInOut(board.D25)
reset_pin = digitalio.DigitalInOut(board.D24)

# Config for display baudrate (default max is 24mhz):
BAUDRATE = 24000000

# Setup SPI bus using hardware SPI:
spi = board.SPI()

# pylint: disable=line-too-long
# Create the display:
disp = ili9341.ILI9341(
    spi,
    rotation=90,  # 2.2", 2.4", 2.8", 3.2" ILI9341
    cs=cs_pin,
    dc=dc_pin,
    rst=reset_pin,
    baudrate=BAUDRATE,
)
# pylint: enable=line-too-long
# Create blank image for drawing.
# Make sure to create image with mode 'RGB' for full color.
if disp.rotation % 180 == 90:
    height = disp.width  # we swap height/width to rotate it to landscape!
    width = disp.height
else:
    width = disp.width  # we swap height/width to rotate it to landscape!
    height = disp.height

image = Image.new("RGB", (width, height))

# Get drawing object to draw on image.
draw = ImageDraw.Draw(image)

# Draw a black filled box to clear the image.
draw.rectangle((0, 0, width, height), outline=0, fill=(0, 0, 0))
disp.image(image)

# First define some constants to allow easy positioning of text.
padding = -2
x = 0

# Load a ipaexfont-gothic font.
font1 = ImageFont.truetype("/usr/share/fonts/opentype/ipaexfont-gothic/ipaexg.ttf", 65)
font2 = ImageFont.truetype("/usr/share/fonts/opentype/ipaexfont-gothic/ipaexg.ttf", 25)
font3 = ImageFont.truetype("/usr/share/fonts/opentype/ipaexfont-gothic/ipaexg.ttf", 20)

#---SCD30 init-----------------scd30_sample.py---------
from scd30_i2c import SCD30

scd30 = SCD30()

scd30.set_measurement_interval(2)
scd30.start_periodic_measurement()

time.sleep(2)

while True:
#---csv out  ------------------------------------------
    if scd30.get_data_ready():
        m = scd30.read_measurement()
        if m is not None:
          dtd = time.strftime('%Y年%m月%d日', time.localtime())
          dtt = time.strftime('%H時%M分%S秒', time.localtime())
          dta = time.strftime('%a', time.localtime())
          if dta == "Mon": 
           jdta = dta.replace("Mon", "(月)")
          elif dta == "Tue": 
           jdta = dta.replace("Tue", "(火)")
          elif dta == "Wed": 
           jdta = dta.replace("Wed", "(水)")
          elif dta == "Thu": 
           jdta = dta.replace("Thu", "(木)")
          elif dta == "Fri": 
           jdta = dta.replace("Fri", "(金)")
          elif dta == "Sat": 
           jdta = dta.replace("Sat", "(土)")
          elif dta == "Sun": 
           jdta = dta.replace("Sun", "(日)")
          else:
           jdta="ー"
          pscd30 = f"{m[0]:.1f},{m[1]:.1f},{m[2]:.1f}"
          P_csv = dtd + jdta + " " + dtt + "," + pscd30
        print(P_csv)
        
#---TFT-ili9341- Draw ---------------------------------
        # Draw a black filled box to clear the image.
        draw.rectangle((0, 0, width, height), outline=0, fill=(0, 0, 0))

        draw.text((50, 188), dtd, font=font2, fill="#00ff00")
        draw.text((50, 212), dtt, font=font2, fill="#00ff00")
        draw.text((225, 212), jdta, font=font2, fill="#00ff00")
        
        draw.text((20, 6), "温度:", font=font2, fill="#ffffff")
        draw.text((24, 32), "( ℃ )", font=font3, fill="#ffffff")
        temp =format(float(m[1]), '.1f')
        draw.text((90, 0), temp, font=font1, fill="#FFFF00")

        draw.text((20, 68), "CO  :", font=font2, fill="#ffffff")
        draw.text((58, 76), "2", font=font3, fill="#ffffff")
        draw.text((18, 93), "( ppm )", font=font3, fill="#ffffff")
        co2 =format(float(m[0]), '.1f')
        draw.text((90, 60), co2, font=font1, fill="#FFFF00")

        draw.text((20, 130), "湿度:", font=font2, fill="#ffffff")
        draw.text((24, 155), "( ％ )", font=font3, fill="#ffffff")
        humi =format(float(m[2]), '.1f')
        draw.text((90, 120), humi, font=font1, fill="#FFFF00")

        disp.image(image)

        time.sleep(2)
    else:
        time.sleep(0.2)