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    Adreno DC Fan

    Uploaded by

    Smruti
    This document describes an automatic DC fan system using an Arduino, LM35 temperature sensor, LCD display, and DC fans for exhaust and supply. The system monitors temperature using the LM35 and controls the fans based on temperature thresholds. If temperature is below 20°C, only the white LED turns on. Between 26-29°C, the white and yellow LEDs turn on and the supply fan operates. Above 30°C, the red, white LEDs turn on and both fans operate. The system was created to control temperature in a greenhouse.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    Adreno DC Fan

    Uploaded by

    Smruti
    60 views21 pages
    This document describes an automatic DC fan system using an Arduino, LM35 temperature sensor, LCD display, and DC fans for exhaust and supply. The system monitors temperature using the LM35 and controls the fans based on temperature thresholds. If temperature is below 20°C, only the white LED turns on. Between 26-29°C, the white and yellow LEDs turn on and the supply fan operates. Above 30°C, the red, white LEDs turn on and both fans operate. The system was created to control temperature in a greenhouse.

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    Adreno Dc Fan

    Original Title

    Adreno Dc Fan

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    This document describes an automatic DC fan system using an Arduino, LM35 temperature sensor, LCD display, and DC fans for exhaust and supply. The system monitors temperature using the LM35 and controls the fans based on temperature thresholds. If temperature is below 20°C, only the white LED turns on. Between 26-29°C, the white and yellow LEDs turn on and the supply fan operates. Above 30°C, the red, white LEDs turn on and both fans operate. The system was created to control temperature in a greenhouse.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    60 views21 pages

    Adreno DC Fan

    Uploaded by

    Smruti
    This document describes an automatic DC fan system using an Arduino, LM35 temperature sensor, LCD display, and DC fans for exhaust and supply. The system monitors temperature using the LM35 and controls the fans based on temperature thresholds. If temperature is below 20°C, only the white LED turns on. Between 26-29°C, the white and yellow LEDs turn on and the supply fan operates. Above 30°C, the red, white LEDs turn on and both fans operate. The system was created to control temperature in a greenhouse.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
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    AUTOMATIC DC

    FAN USING LM35

    Base on Arduino
    for Green House
    English version

    made by :

    M. Daddy Refa M (151611015)


    Nurlatifa Haulaini (151611019)
    Ronito Halason (151611027)
    Description

    – We used LM35 as a temperature censor, the result of the measurements are


    displayed on the LCD
    – We used 2 DC Fan 12 volt, one for exhaust fan and another fan as a supply fan
    – When the value of temperature under 20°C, LED white will shine and no fan is
    working
    – When the value of temperature around 26°C until 29°C, LED white and yellow
    will shine, and supply fan will be working
    – When the value of temperature above 30°C, LED red and white will shine,
    supply fan and exhaust fan will be working
    Source

    – https://www.youtube.com/watch?v=18krZsFRzzY
    The Equipment

     Arduino UNO
     LED : white, red and
     DC Fan 12 volt
    yellow
     PCB
     LCD
     Relay Module
     Diode
     Solder
     Resistor
     LM35
     Wire
     Trafo
    Arduino UNO R3

    Consists of :
     14 pin digital input/output
     6 input analog
     Mikrokontroler ATmega328
     Koneksi USB
     Power jack
     ICSP header
     Reset button

    Arduino UNO is a microcontroller


    board based on ATmega328
    Diode

     LED are diode that can emit light


     LED are used as an indicator in
     Diode are used for a half wave
    green house
    rectifier
     Red light indicates that the
     AC current wave must be rectified
    temperature gets too hot
    because we need a dc current
     Yellow light indicates that the
     The negative part connected to the
    temperature in the normal
    fan and positive part to the relay to
    condition
    occur forward current
     White light indicates that the
    program are working
    LM35

     The function : to change the


    temperature scale into electrical
    quantities in the form of voltage
     The value of voltage : 5V
     Has a calibration accuracy of 0.5°C
    when the temperature 25°C
     Has a maximum range of temperature
    around -55°C until 150°C
     Has a three plugs, the right side
    connected to GND, the left side
    connected to 5V, and the middle to
    A0
    LCD

    Liquid Crystal Display (LCD)

    LCD is a flat panel display or other


    electronic visual display that use the
    light modulating properties of liquid
    crystals.
    • Consist 16 character and 2 row
    • can be observe with a 4 bit mode or
    8 bit mode
    • Equipped with back light
    • In this project, LCD use to display the
    value of temperature
    Resistor

    Resistor is electronic component


    that serve to hold electric current.
    Because of electrical currents
    connected to electric voltage so that
    when voltage is passed across the
    resistor, there will be a decrease in
    that voltage.
    Trafo
    Fan

    • DC fan 12 volt
    • The size : 12 cm x 12 cm
    • We used 2 fan, one for
    exhaust fan and another one
    for supply fan
    Relay Module

    • Relay is switch are operated


    electrically
    • Relay has two electromechanical
    components, witch consist of two
    main parts they are electromagnetic
    (coil) and mechanical (set contact
    switches)
    • Principle of electromagnetic relay
    use to move the switch contacts so
    that when the electric current is
    small (low power), it can conduct
    electricity with a higher voltage
    Jumper
    Wood
    Actuator
    Supply fan
    Exhaust fan

    Censor Arduino Display


    Object
    LM35 UNO LCD

    Indicator
    LED white
    LED red
    LED yellow
    To control the Arduino, we must input the program
    by using software Arduino IDE. First we should adapt the
    COM of the Arduino with our software. Then, we should
    choose the same board between the Arduino and the
    software . F.or example : Board Arduino Genuino, COM 3)
    The trouble when making
    “Automatic DC Fan”
    – We must add the trafo and diodes because the current sources
    from Arduino UNO only 5V but we need current sources more
    than that
    – It takes a lot of wire to connected the LCD with Arduino, so we
    decide to change the wire and we use I2C
    – we need to change the program on IDE because we use I2C

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