SHT40 MICROPYTHON

sht40.py 文件 温湿度传感器 3.3V 【5v 也可以】

import machine
import time
class SHT40:
   def __init__(self, i2c, address=0x44):
       self.i2c = i2c
       self.address = address
   def read_temperature_humidity(self):
       # Send measurement command (High Precision)
       self.i2c.writeto(self.address, b'\xFD')
       time.sleep(0.01) # Wait for measurement to complete
       # Read 6 bytes of data
       data = self.i2c.readfrom(self.address, 6)
       # Convert raw data to temperature and humidity
       temp_raw = int.from_bytes(data[0:2], 'big')
       humidity_raw = int.from_bytes(data[3:5], 'big')
       temperature = -45 + (175 * (temp_raw / 65535.0))
       humidity = 100 * (humidity_raw / 65535.0)
       return temperature, humidity

调用

form sht40 import SHT40
import machine
i2c = machine.I2C(i2scl=machine.Pin(6), sda=machine.Pin(5), freq=100000)
# Initialize SHT40 sensor
sht40 = SHT40(i2c)
# Read and print temperature and humidity
while True:
   temp, hum = sht40.read_temperature_humidity()
   print("Temperature: {:.2f} °C".format(temp))
   print("Humidity: {:.2f} %".format(hum))
   time.sleep(1)

import machine
import time
class SHT40:
   def __init__(self, i2c, address=0x44):
       self.i2c = i2c
       self.address = address
   def read_temperature_humidity(self):
       # Send measurement command (High Precision)
       self.i2c.writeto(self.address, b'\xFD')
       time.sleep(0.01) # Wait for measurement to complete
       # Read 6 bytes of data
       data = self.i2c.readfrom(self.address, 6)
       # Convert raw data to temperature and humidity
       temp_raw = int.from_bytes(data[0:2], 'big')
       humidity_raw = int.from_bytes(data[3:5], 'big')
       temperature = -45 + (175 * (temp_raw / 65535.0))
       humidity = 100 * (humidity_raw / 65535.0)
       return temperature, humidity






# Initialize I2C
i2c = machine.I2C(i2scl=machine.Pin(6), sda=machine.Pin(5), freq=100000)
# Initialize SHT40 sensor
sht40 = SHT40(i2c)
# Read and print temperature and humidity
while True:
   temp, hum = sht40.read_temperature_humidity()
   print("Temperature: {:.2f} °C".format(temp))
   print("Humidity: {:.2f} %".format(hum))
   time.sleep(1)