Home :: Do it Yourself Kits :: Remote Controlled AC Fan Speed Regulator KIT

Remote Controlled AC Fan Speed Regulator KIT

Remote Controlled AC Fan Speed Regulator KIT
Remote Control Fan Regulator KIT PCB Soldered with All Parts PCB Soldered with All Parts Transformer Included in the Kit
SKU SKU00221  
Weight 450.00 grams
Our price: Rs560.00 ($11.66)

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This device can be used to remotely control the speed of an AC fan and to switch it on or off. The remote control is a cheap NEC Format remote, usually supplied with small DVD players. Three buttons are used to command the circuit. The UP key increase the fan's speed while the DOWN key decrease it. The ENTER key is used to switch on or off the fan. The unit provides 10 way speed control from 0 to 9. The current speed is displayed in a seven segment display. The yellow LED on the PCB indicates the power status of the load. If the load is switched off using the R/C then the LED will also be switched off.


In the Video below you can check out the project in action.

The main parts of the circuit is labeled below.

  1. The seven segment display used to show the current speed level.
  2. The TSOP1738 sensor is used to pick up commands from remote control.
  3. The Yellow LED indicates the power status of the load.
  4. OUT - Here the AC load is connected in series. Tested on 220v 50Hz AC line.
  5. IN - Power supply from a 12-0-12 transformer is applied here.
  6. MCU - ATmega8 AVR 8 bit Microcontroller.
  7. SWITCH - Manual Switch used to operate the unit without the remote control.


remote controlled ac fan regulator

Fig.: Atmel AVR Based Remote Controlled Fan Regulator.


remote controlled fan regulator wiring diagram

Fig.: Remote Controlled Fan Regulator Wiring Diagram.



Fig.: Transformer with plug.

KIT Contents

Part List
01 330 ohm resistor (9 Nos) R2-R9, R14
02 4k7 Resistor (2 Nos) R1,R11
03 1K Resistor R12
04 39 ohm Resistor R13
05 1K5 Resistor R15
06 22pF Ceramic Disk Capacitor (2 Nos) C1,C2
07 0.1uF Ceramic Disk Capacitor 250V(1 Nos) C3
08 0.1uF Ceramic Disk Capacitor (2 Nos) C5,C6
09 470uF 50v Electrolytic Capacitor C4
10 16 MHz Crystal Half Size X1
11 1N4007 Diode (6 Nos) D2,D3,D4,D5,D6,D7
12 LED 5mm Any Colour D1
13 MCT2E Opto Coupler U4
14 MOC3021 Opto Triac Driver U2
15 ATmega8-16PU General purpose 8 bit MCU U1
16 Triac BT136 U3
17 7805 Voltage Regulator U5
18 Common Anode Display DISP11
19 TSOP1738 IR Sensor X2
20 220V AC to 12-0-12 Center Tapped Transformer 500mA minimum.  
21 Hobby Remote Control (NEC)  
22 Printed Circuit Board  


More Information

Schematic, Program, Build Step are available here. Please read carefully before assembling.

Remote Controlled Fan Regulator - AVR Project

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Product rating

Customer Reviews

  • Author: krishna
    i want kit fully
    i want full operated kit
    without fan fully solidering kit
    i want do directly operated kit
  • Author: sir i started making this project but i cannot get PCB and microcontroller..please send me these two componat immediatly..on
    Amol gade
  • Author: Ajinkya Bankar
    sir, I have this kit. When I connect the Fan, Fan makes humming noise. Without this kit, fan operates normally. Lamp intensity changes without any problem. What can be done to remove humming noise?
  • Author: Ashok
    Hi Avinash I am intrastaed in puurchasing but u provided code in dimmer ir is with lcd and u providing an 7 segment.

    If you r providing code with 7 segment then we will purchase 10 Nos

    please reply omn ashokgarje@hotmail.com
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