Dht11. Mit dem raspberry pi und einigen sensoren ist es ohne viel aufwand die temperatur zu messen. Dht11 sensor has four pins vcc gnd data pin and a not connected pin.
It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin no analog input pins needed. 25ma max current use during conversion while requesting data good for 20 80 humidity readings with 5 accuracy. Dht11 vs dht22.
Rh of 59 and temperature of 21 celsius.
Weather stations also use these sensors to predict weather. This sensor is used in various applications such as measuring humidity and temperature values in heating ventilation and air conditioning systems. Dht11 vs dht22. A pull up resistor of 5k to 10k ohms is provided for communication between sensor and micro controller.