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Tutorial for Arduino▶9 Temperature﹠ Humidity﹠ Smoke Alarm Monitoring System
Posted by jack chen
Posted January 14, 2015 | 0 favorites
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Description
This alarm system use DHT11 humidity and temperature Sensor and MQ-2 Gas Sensor to measure the current humidity, temperature and smoke volume. The principle of this alarm system is that, when the current temperature is higher than the dangerous temperature we set, it will give a high level to the 13 pin of ICStation Mega and make the buzzer module alarm. At the same time, it also gives the 9 pin of ICStation Mega and make the green LED light.When the current humidity is higher than the dangerous humidity, it will give the high level to the pin 13 of ICStation Mega and make the buzzer module alarm. At the same time, it will give a high level of pin7 and make the red LED light. This system could be applied in the fire alarm and humidity or smoke measurement of the house or public place. You need following components : ICStation ATMEGA2560 Mega2560 R3 Board Compatible Arduino http://www.icstation.com/product_info.php?products_id=3517 DHT11 Digital Humidity Temperature Sensor http://www.icstation.com/product_info.php?products_id=1398 MQ-2 Gas Sensor Module Smoke Methane Butane Detection for Arduino http://www.icstation.com/product_info.php?products_id=3025 Active Buzzer Module for Arduino http://www.icstation.com/product_info.php?products_id=2512
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