if(digitalRead(sense) == 1) // Show alarm if triggered
Serial.print(" ALARM");
所謂 Show alarm if triggered
When triggered (gas level at or above preset), the Serial Monitor window will display the word ALARM.
Gas Sensor Board
讀存在的甲烷氣體。當觸發(氣體濃度達到或超過預置),串行監視器窗口將顯示單詞報警。