| dc.description.abstract | This research is aims to circulate and stabilize the temperature to keep them clean
and detect C02 in the model room. This system was developed using a monitoring
plan that comes with Microcontroller ATMEGA 8535 as the central control of the
entire system. This system includes several devices such as temperature sensors
(LM-35) as a measure and control the temperature there is around. The system has
two sensors are temperature sensors to detect air at room temperature and gas
sensors to detect if there is interference or excessive concentration of gas in the
room. The temperature of sensor has been tested, and the sensor will detect the
temperature in the room, if the detected temperature exceeds the maximum
temperature is set, then the fan will automatically turn on to cool the room if the
temperature has returned to normal, then the fan will die. For a gas sensor, the
sensor will detect gases harmful to humans, especially CO2. If the concentration
of CO2 is already too much then the system will automatically activate the motor
to open the vents, while the fan will work to suck air containing harmful gas to be
released out of the room. PC serves to determine the status of the sensor system
conditions. The resulting system produced measures the temperature of 30oC –
36oC with output voltage of 300 mV - 360 Mv. The temperature sensor (ICLM35)
and gas sensors (MQ-2) was tested will work automatically if detected in
accordance with the specified. | en_US |
