This paper designs a capacitive humidity sensor with a 281-sensitivity value of a heterostructure composed of hematite and nickel oxide as sensing materials connected to an indirect capacitance to ...

Circuit Diagram of DHT11 Module The DHT11 consists of a pull-up resistor which is added to the data pin. A single led is used with a 1k current limiting resitor and capacitor is used to filter the ...

The sensor acts as a capacitor (C1) whose value varies from 180 to 220 pF for relative humidity in the range of 0% to 100%. The sensor is linear within ±3% of full scale.

Fruits can easily become soggy and rot when exposed to a humid environment. Therefore, fruit needs to be placed at a suitable humidity level and maintained at that level from time to time to prevent ...