本專題是對於溫度、CO2設備來偵測，溫度、CO2經由熱敏電阻及MG811轉成電壓後，利用A/D 轉換電路將其訊號傳入8051，並顯示溫度、CO2濃度及設定值在LCD上，使其量測的溫度、CO2濃度數值大小能判斷目前狀態是理想，進而對其做加熱、冷卻及排氣的動作。-This topic is for temperature, CO2 equipment to detect temperature, CO2 via a thermistor and MG811 turn into a voltage, the use of A/D converter circuit to signal incoming 8051 and displays temperature, CO2 concentration and the set value in the LCD On to the measurement of temperature, CO2 concentration can determine the current status of the numerical size is ideal, and then do their heating, cooling and exhaust action.