Electrical energy is no longer treated as an unlimited utility. Every watt consumed has a cost impact, an efficiency implication, and in many cases a safety consequence. A smart grid in IoT is not a ...
const int ledPin = 13; // led connected to digital pin 13 const int knockSensor = A0; // the piezo is connected to analog pin 0 const int threshold = 500; // threshold value to decide when the ...
When powered on, the round 240×240 pixel display shows the current PM2.5 concentration in micrograms per cubic meter at the top, with a thick colored ring around the edge of the screen that shifts ...
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