Raspberry Pi 4 Data Logger | DHT11/DHT22 Sensor Data Logger скачать в хорошем качестве

Raspberry Pi 4 Data Logger | DHT11/DHT22 Sensor Data Logger

Raspberry Pi 4 Data Logger | DHT11/DHT22 Sensor Data Logger Scroll down for code..... In this tutorial, we will learn how to use DHT11/ DHT22/AM2302 with Raspberry Pi 4. Also see how to log sensor data in raspberry pi 4. Once you learn how to log data you can log any sensor data in same the fashion. For this tutorial we are logging DHT22 sensor data to .txt file but you can also use .csv extension file to export data directly in .csv file or change .txt file extension to .csv extension. If you want to support my video please buy any product through my amazon affiliate link. I will receive a commission, at no extra cost to you. LIST OF COMPONENT (affiliate links) https://amzn.to/2noWmWm (Raspberry pi 4 model B) http://amzn.to/2vqIKJP (DHT22) http://amzn.to/2wxPmWz (Breadboard) http://amzn.to/2vJ3lvo (Jumper wire) http://amzn.to/2vmSK8l (Resistor) Music: Elektronomia - Ibiza [NomiaTunes Release] Watch:    • Elektronomia - Ibiza [COPYRIGHT FREE]   Stream: https://spoti.fi/3aDDfuV import Adafruit_DHT import time #comment and uncomment the lines below depending on your sensor #sensor = Adafruit_DHT.DHT11 sensor = Adafruit_DHT.DHT22 #sensor = Adafruit_DHT.AM2302 #DHT pin connects to GPIO 4 sensor_pin = 4 #create a variable to control the while loop running = True #new .txt file created with header file = open('sensor_readings.txt', 'w') file.write('time and date, temperature (C),temperature (F), humidity
') #loop forever while running: try: #read the humidity and temperature humidity, temperature = Adafruit_DHT.read_retry(sensor, sensor_pin) #uncomment the line below to convert to Fahrenheit temperature_f = temperature * 9/5.0 + 32 #sometimes you won't get a reading and #the results will be null #the next statement guarantees that #it only saves valid readings if humidity is not None and temperature is not None: #print temperature and humidity print('Temperature = ' + str(temperature) +','+ 'Temperature Fahrenheit = ' + str(temperature_f) +',' + 'Humidity = ' + str(humidity)) #save time, date, temperature in Celsius, temperature in Fahrenheit and humidity in .txt file file.write(time.strftime('%H:%M:%S %d/%m/%Y') + ', ' + str(temperature) + ', '+ str(temperature_f)+',' + str(humidity) + '
') time.sleep(1) else: print('Failed to get reading. Try again!') time.sleep(1) except KeyboardInterrupt: print ('Program stopped') running = False file.close()