HVAC filter monitoring: Pressure sensors for differential pressure measurement to detect if the filter needs to be replaced. Door Open/Close in Industrial/Medical Facilities: In strong controlled ...
The hardware setup shown below includes the Arduino Uno R4, a DHT11 sensor, and the built-in Wi-Fi for email alerts. The DHT11 is connected with VCC to 5V, GND to ground, and the data pin to Digital ...
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