Temperature Display Our system able to show the room temperature through the LCD display.	Turn on fan and air conditioner Our system have addition feature where it can control the temperature in the room. When the temperature is low, it only use fan. Then, when the temperature is high, it will open both fan and air conditioner.	PIR Sensor Usage: Input Voltage: DC 4.5-20V Static current: 50uA Output signal: 0,3V (Output high when motion detected) Sentry Angle: 110 degree Sentry Distance: max 7 m Shunt for setting overide trigger: H - Yes, L - No Advantage: Simple，easy to adopt insystem.
DHT 11 Supply Voltage: +5 V Temperature range :0-50 °C error of ± 2 °C Humidity :20-90% RH ± 5% RH error Interface: Digital	Arduino Uno ATmega328 microcontroller Input voltage - 7-12V 14 Digital I/O Pins (6 PWM outputs) 6 Analog Inputs 32k Flash Memory 16Mhz Clock Speed