i2c-gpio(ソフトウエアI2C)を割り当てたRaspbery Pi CM4とBME280センサで気圧、温度、湿度の測定、SPI接続2.8インチTFT液晶に表示

#bme280_sample_TFT_csv.py
#coding: utf-8

#---BME280 init----------bme280_sample.py--------------
import datetime
from smbus2 import SMBus
#bus_number  = 1     #Soc I2C (hardware I2C)
bus_number  = 3     #i2c-gpio (software I2C)
i2c_address = 0x76

bus = SMBus(bus_number)

digT = []
digP = []
digH = []

t_fine = 0.0

#---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)

#---BME280---------------------------------------------
def writeReg(reg_address, data):
    bus.write_byte_data(i2c_address,reg_address,data)

def get_calib_param():
    calib = []
    
    for i in range (0x88,0x88+24):
        calib.append(bus.read_byte_data(i2c_address,i))
    calib.append(bus.read_byte_data(i2c_address,0xA1))
    for i in range (0xE1,0xE1+7):
        calib.append(bus.read_byte_data(i2c_address,i))

    digT.append((calib[1] << 8) | calib[0])
    digT.append((calib[3] << 8) | calib[2])
    digT.append((calib[5] << 8) | calib[4])
    digP.append((calib[7] << 8) | calib[6])
    digP.append((calib[9] << 8) | calib[8])
    digP.append((calib[11]<< 8) | calib[10])
    digP.append((calib[13]<< 8) | calib[12])
    digP.append((calib[15]<< 8) | calib[14])
    digP.append((calib[17]<< 8) | calib[16])
    digP.append((calib[19]<< 8) | calib[18])
    digP.append((calib[21]<< 8) | calib[20])
    digP.append((calib[23]<< 8) | calib[22])
    digH.append( calib[24] )
    digH.append((calib[26]<< 8) | calib[25])
    digH.append( calib[27] )
    digH.append((calib[28]<< 4) | (0x0F & calib[29]))
    digH.append((calib[30]<< 4) | ((calib[29] >> 4) & 0x0F))
    digH.append( calib[31] )
    
    for i in range(1,2):
        if digT[i] & 0x8000:
            digT[i] = (-digT[i] ^ 0xFFFF) + 1

    for i in range(1,8):
        if digP[i] & 0x8000:
            digP[i] = (-digP[i] ^ 0xFFFF) + 1

    for i in range(0,6):
        if digH[i] & 0x8000:
            digH[i] = (-digH[i] ^ 0xFFFF) + 1  

def readData():
    data = []
    for i in range (0xF7, 0xF7+8):
        data.append(bus.read_byte_data(i2c_address,i))
    pres_raw = (data[0] << 12) | (data[1] << 4) | (data[2] >> 4)
    temp_raw = (data[3] << 12) | (data[4] << 4) | (data[5] >> 4)
    hum_raw  = (data[6] << 8)  |  data[7]
    
    #compensate_T(temp_raw)
    #compensate_P(pres_raw)
    #compensate_H(hum_raw)
    t = compensate_T(temp_raw)
    p = compensate_P(pres_raw)
    h = compensate_H(hum_raw)
    return [t,p,h]

def compensate_P(adc_P):
    global  t_fine
    pressure = 0.0
    
    v1 = (t_fine / 2.0) - 64000.0
    v2 = (((v1 / 4.0) * (v1 / 4.0)) / 2048) * digP[5]
    v2 = v2 + ((v1 * digP[4]) * 2.0)
    v2 = (v2 / 4.0) + (digP[3] * 65536.0)
    v1 = (((digP[2] * (((v1 / 4.0) * (v1 / 4.0)) / 8192)) / 8)  + ((digP[1] * v1) / 2.0)) / 262144
    v1 = ((32768 + v1) * digP[0]) / 32768
    
    if v1 == 0:
        return 0
    pressure = ((1048576 - adc_P) - (v2 / 4096)) * 3125
    if pressure < 0x80000000:
        pressure = (pressure * 2.0) / v1
    else:
        pressure = (pressure / v1) * 2
    v1 = (digP[8] * (((pressure / 8.0) * (pressure / 8.0)) / 8192.0)) / 4096
    v2 = ((pressure / 4.0) * digP[7]) / 8192.0
    pressure = pressure + ((v1 + v2 + digP[6]) / 16.0)  
    #print ("pressure : %7.2f hPa" % (pressure/100) )
    return ("%7.2f" % (pressure/100))

def compensate_T(adc_T):
    global t_fine
    v1 = (adc_T / 16384.0 - digT[0] / 1024.0) * digT[1]
    v2 = (adc_T / 131072.0 - digT[0] / 8192.0) * (adc_T / 131072.0 - digT[0] / 8192.0) * digT[2]
    t_fine = v1 + v2
    temperature = t_fine / 5120.0
    #print ("temp : %-6.2f ℃" % (temperature) )
    return ("%6.2f" % (temperature))

def compensate_H(adc_H):
    global t_fine
    var_h = t_fine - 76800.0
    if var_h != 0:
        var_h = (adc_H - (digH[3] * 64.0 + digH[4]/16384.0 * var_h)) * (digH[1] / 65536.0 * (1.0 + digH[5] / 67108864.0 * var_h * (1.0 + digH[2] / 67108864.0 * var_h)))
    else:
        return 0
    var_h = var_h * (1.0 - digH[0] * var_h / 524288.0)
    if var_h > 100.0:
        var_h = 100.0
    elif var_h < 0.0:
        var_h = 0.0
    #print ("hum : %6.2f ％" % (var_h) )
    return ("%6.2f" % (var_h))

def setup():
    osrs_t = 1            #Temperature oversampling x 1
    osrs_p = 1            #Pressure oversampling x 1
    osrs_h = 1            #Humidity oversampling x 1
    mode   = 3            #Normal mode
    t_sb   = 5            #Tstandby 1000ms
    filter = 0            #Filter off
    spi3w_en = 0            #3-wire SPI Disable

    ctrl_meas_reg = (osrs_t << 5) | (osrs_p << 2) | mode
    config_reg    = (t_sb << 5) | (filter << 2) | spi3w_en
    ctrl_hum_reg  = osrs_h

    writeReg(0xF2,ctrl_hum_reg)
    writeReg(0xF4,ctrl_meas_reg)
    writeReg(0xF5,config_reg)

def tft_csv(t,p,h):
    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())
    P_csv = dtd + " " + dtt + "," + t + "," + p + "," + h
    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((20, 6), "温度:", font=font2, fill="#ffffff")
    draw.text((30, 32), "(℃)", font=font3, fill="#ffffff")
    temp =format(float(t), '.1f')
    draw.text((90, 0), temp, font=font1, fill="#FFFF00")
    
    draw.text((20, 70), "気圧:", font=font2, fill="#ffffff")
    draw.text((25, 93), "(hPa)", font=font3, fill="#ffffff")
    pres =format(float(p), '.1f')
    draw.text((90, 60), pres, font=font1, fill="#FFFF00")

    draw.text((20, 130), "湿度:", font=font2, fill="#ffffff")
    draw.text((30, 153), "(％)", font=font3, fill="#ffffff")
    humi =format(float(h), '.1f')
    draw.text((90, 120), humi, font=font1, fill="#FFFF00")
    
    draw.text((50, 185), dtd, font=font2, fill="#00ff00")
    draw.text((50, 210), dtt, font=font2, fill="#00ff00")
    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"
    draw.text((225, 210), jdta, font=font2, fill="#00ff00")
    disp.image(image)

setup()
get_calib_param()

if __name__ == '__main__':
    try:
        while True:
            [t,p,h] = readData()
            tft_csv(t,p,h)
            time.sleep(1)
    except KeyboardInterrupt:
       pass