Automation of Washing Machine Using Arduino





Introduction: Automation of Washing Machine Using Arduino

We are having a semi automatic washing machine. Timer switch and drain switch are spoiled. I tried to replace them but it costs more money. We stopped using it. Then I thought to remove the manual switches and make it automatic. Then I tried this using arduino and worked well with lesser cost. I presented this to my grand mother. In their house there is no over head water tank system. So I didn't try for automatic water filling. We have to fill water manually.

Step 1: Parts Needed

  • Arduino UNO
  • 2 channel relay board
  • 12v 1amp step down transformer
  • 5v regulator IC
  • L293D motor driver board
  • 60 rpm geared motor
  • PCB clad
  • common anode 7 segment display
  • 2* Tactile switches
  • Threaded rod with nut
  • Wires
  • 2* push to ON switches
  • Buzzer
  • 2* 10k resistors

Step 2: Code

Initially it checks for drain closed or not. If it is open drain will be closed automatically, if not all the filled water will be drained. After the drain is closed program runs. There are three timer settings i.e.,3/6/9 mins. After completing washing drain opens and after few mins drain closes and it beeps indicating that the washing is completed. During drain open display blinks until drain is closed.

Step 3: Control Pannel

make the control panel using 2 tactile switches as shown in the pictures. Diptrace PCB layout is attached. For smooth functioning of tactile switches I used styrofoam, It acts as waterproof.

Step 4: Drain System

In semi automatic washing machines the drain knob is connected to the drain switch with a nylon thread. When we operate the drain switch, it pulls the drain switch and lets the water drain. I replaced the manual switch using geared motor along with threaded rod. I inserted nut into a wooden block, and fixed the threaded rod to motor so that it pulls the drain switch with nylon thread as shown in the picture. I used two push to ON switches to control the range of geared motor movement to a certain distance. Otherwise it may pull off and break the switch or may not open fully to let the water drain. This is the major setup to take care.

Step 5: Washing Motor Control and Wiring

Washing motor contains 3 wires. In my washing machine one is directly connected to phase. Remaining two for CW and CCW motion. I connected through relay board as shown in the picture. Neutral is connected to relay board as shown in the picture. When relay 1 is ON motor rotates CW. When both relays are ON motor rotates CCW.

Step 6: Fitting

Fit all the components as shown in the pictures.

Step 7: Schematics and Wiring

L293D motor driver:

  • 5v to EN A pin.
  • A1 to pin 4 of arduino, A2 to pin 5.
  • Supply 12v to board.
  • Geared motor red wire to MA1, black to MA2.

Control board:

Connect mode switch to arduino pin 3, start switch to pin2 and power the board with 5v.


Connect +ve to pin 6 of arduino and -ve to ground.

7-Segment display:

Connect anode to +5v and remaining to arduino pins from 12-19.

Step 8: Testing

Step 9: Washing Clothes After Assembling



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    1 Questions


    i is a preloaded 5 num character array, with 15,29,44,58,73...


    dear sandilya.anisetty

    can you send the schematic wiring to my email ?because i was tried 5 times to build this machine but i found some problem in wiring.. i thing your project is great solution for my old 2 tube washing machine. thank you very much

    4 replies

    Now this instructables completed with the schematic.. thank you so much dear Sandilya Anisetty.. so i try again to build this machine and succes.. in button wiring i found some problem but solved.. i connect 10K between ground and pin 2 and 3 then shorting temporary 5V to pin 2 for start or pin 3 to choice timer.. all be right.. after time enough motor rotating releasing and pushing between 2 saclar and buzer cry.. then push resset ready to washing again hahaha

    Hi sandilya Please can you give me the schematic of this timer and what if i just want the code for timer washing only not the drainer can you give it to me please. You can send an email to me to Thank alot for your kindness.

    1 reply

    Are you asking for control panel schematics. If you don't want the drainer, just remove drain(), drain2() methods, method calls, S1, S2, M1, M2 from the code.

    I have a LG w8071ttp top loader and i was thinking to make it controllable by wifi but washing machine circuitry is not my thing. So..where do I start? How do I know which wires control washing, drying, spinning, draining, rinsing, water level...? Can adding the arduino controller to a universal washer control board, the sxy2200, work? The arduino should take over the controls...

    Hi I have a capacitor attached to the motor of my washing machine. will it be directly connected to phase wire between the relay and the motor?

    3 replies

    Hi... Let me know the actual wiring. Then I can suggest you.

    3 wires go inside the motor (as shown by you also). 2 wires are directly connected to a capacitor and one wire(phase) is coming from PCB of the machine. And what do i need to add bigger switch buttons to this motor.

    I understood your motor wiring. Are you asking about tactile switches? No need to change tactile switch. Relays acts as switches for AC motor.

    Dear Sandilya,

    I have old front loading washer with broken timer. Can I fix this to front loader with same setup or do I need code changes. Pls advise.


    Riyancy K

    1 reply

    Thank you for reading my Instructable. Is it manual timer? If it is manual timer, by knowing the wiring connections only I can advise you.

    Amazing. What was your total cost of creating this?

    1 reply

    Man, you should be given a Nobel prize in economics. Electronic controls in appliances are notorious for consigning an otherwise good, usable machine to the junkyard simply because the original electronics are obsoleted by the manufacturer, sometimes within a year or less after model launch. I can't praise your idea highly enough, you have potentially save tens of thousands of currency with this tip, thanks.

    2 replies

    Dear BeachsideHank, I agree with you. A lot of people nowadays simply just throw otherwise well made machines out, due to that a little tiny thingummibob has stopped working. They don't know what to do - and the so called and self-pronounced professional wants like USD 100 just to look at the thing, and then he wants maybe USD 500 to fix it, even though he knows that it is maybe a thermal fuse or similar little thing. I think, without knowing it, that it is greed and lack of education of our population. Most people would be able to fix those things, if they had not wasted some 1000 hours on useless TV series - per year ... And if TV was forbidden, as an example, then people would be doing much more creative things than sitting there as coach-potatoes not being able to do more than saying boo or baa, ha ha ha... So, lots of kudos to the likes of sandilya.anisetty :-) for doing something.

    Great work! But how do you control the rotation speed of motor? It will be bad for the machine if motor goes at full speed in all situations.