Hack Wrist Watch LCD With Arduino || D-type LCD || Arduin...

In this tutorial we will hack our old school digital watch which is no longer working now. So let's fix the watch Control it's LCD display

BeginnerFull instructions provided4 hours1,240

Hack Wrist Watch LCD With Arduino || D-type LCD || Arduin...

Things used in this project

Hardware components

Arduino UNO

Software apps and online services

Arduino IDE

Story

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In this tutorial we will hack our old school digital watch which is no longer working now.

So let's fix the watch Control it's LCD display which is known as D-type LCD display.

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Supplies

Step 1: Open the Watch

1 / 2

Take the old school broken digital watch
open the screws from behind.
look and understand all part because we goanna close it again.

Step 2: Look at Display

Apart from PCB we found a display
this is a 7 segment bashed display.
A rubber strip with it to connect PCB with display.

Step 3: Connect Wire on PCB and Make a Cut

1 / 2

Connect wire at the PCB where Display is connected.
The soldering of wire should be thing because we will close it again.
make a cut as shown in image to disconnect the it's controller with LCD.

Step 4: Connect With Arduino

Connect all the wire with arduino uno.
The are 16 wire on PCB.
The 16 wire continuously connected to arduino's 2nd pin to 13th pin and A0 pin to A3 pin.

Step 5: Upload the Code

Download the code from link given below.
There some pattern are forming by giving PWM on pins.
the PWM is about 10 mili sec on and 7 mili second off.

Github link : - https://github.com/vishalsoniindia/Hack-Digital-W...

Step 6: Done

1 / 6

Wholaaa............

It's Done

Now you can print any thing you want.

Code

digital Watch LCD

int pin1 = 2;
int pin2 = 3;
int pin3 = 4;
int pin4 = 5;
int pin5 = 6;
int pin6 = 7;
int pin7 = 8;
int pin8 = 9;
int pin9 = 10;
int pin10 = 11;
int pin11 = 12;
int pin12 = 13;
int pinA0 = A0;
int pinA1 = A1;
int pinA2 = A2;
int pinA3 = A3;

int pulsetime = 500;

void setup() {
  pinMode(pin1, OUTPUT);
  pinMode(pin2, OUTPUT);
  pinMode(pin3, OUTPUT);
  pinMode(pin4, OUTPUT);
  pinMode(pin5, OUTPUT);
  pinMode(pin6, OUTPUT);
  pinMode(pin7, OUTPUT);
  pinMode(pin8, OUTPUT);
  pinMode(pin9, OUTPUT);
  pinMode(pin10, OUTPUT);
  pinMode(pin11, OUTPUT);
  pinMode(pin12, OUTPUT);
  pinMode(pinA0, OUTPUT);
  pinMode(pinA1, OUTPUT);
  pinMode(pinA2, OUTPUT);
  pinMode(pinA3, OUTPUT);
  //delay(5000);
}

void loop() {
  //test();
  //garb();
  //delay(1000);
  
  for(int i = 0; i < 200 ; i++){
  FU();
  }
  //delay(1000);
  for(int i = 0; i < 100 ; i++){
  A();
  }
  //delay(1000);
  for(int i = 0; i < 100 ; i++){
  B();
  }
  //delay(1000);
  for(int i = 0; i < 200 ; i++){
  C();
  }
  //delay(1000);
  for(int i = 0; i < 200 ; i++){
  D();
  }
  //delay(1000);
  for(int i = 0; i < 200 ; i++){
  E();
  }
}

void garb() {
  digitalWrite(pin1, LOW);
  digitalWrite(pinA3, LOW);
  delayMicroseconds(7000);
  digitalWrite(pin1, HIGH);
  digitalWrite(pinA3, HIGH);
  delayMicroseconds(10000);

}

void FU() {
  digitalWrite(pin1, LOW);
  digitalWrite(pin2, LOW);
  digitalWrite(pin3, LOW);
  digitalWrite(pin4, LOW);
  digitalWrite(pin5, LOW);
  digitalWrite(pin6, LOW);
  digitalWrite(pin7, LOW);
  digitalWrite(pin8, LOW);
  digitalWrite(pin9, LOW);
  digitalWrite(pin10, LOW);
  digitalWrite(pin11, LOW);
  digitalWrite(pin12, LOW);
  digitalWrite(pinA0, LOW);
  digitalWrite(pinA1, LOW);
  digitalWrite(pinA2, LOW);
  digitalWrite(pinA3, LOW);
  delayMicroseconds(7000);
  digitalWrite(pin1, HIGH);
  digitalWrite(pin2, HIGH);
  digitalWrite(pin3, HIGH);
  digitalWrite(pin4, HIGH);
  //    digitalWrite(pin5,HIGH);
  //    digitalWrite(pin6,HIGH);
  digitalWrite(pin7, HIGH);
  //    digitalWrite(pin8,HIGH);
  digitalWrite(pin9, HIGH);
  digitalWrite(pin10, HIGH);
  digitalWrite(pin11, HIGH);
  //    digitalWrite(pin12,HIGH);
  digitalWrite(pinA0, HIGH);
  //    digitalWrite(pinA1,HIGH);
  digitalWrite(pinA2, HIGH);
  digitalWrite(pinA3, HIGH);
  delayMicroseconds(10000);


}

void A() {
  digitalWrite(pin1, LOW);
  digitalWrite(pin2, LOW);
  digitalWrite(pin3, LOW);
  digitalWrite(pin4, LOW);
  digitalWrite(pin5, LOW);
  digitalWrite(pin6, LOW);
  digitalWrite(pin7, LOW);
  digitalWrite(pin8, LOW);
  digitalWrite(pin9, LOW);
  digitalWrite(pin10, LOW);
  digitalWrite(pin11, LOW);
  digitalWrite(pin12, HIGH);
  digitalWrite(pinA0, HIGH);
  digitalWrite(pinA1, HIGH);
  digitalWrite(pinA2, LOW);
  digitalWrite(pinA3, LOW);
  delayMicroseconds(7000);
  digitalWrite(pin1, HIGH);
  digitalWrite(pin2, HIGH);
  digitalWrite(pin3, HIGH);
  digitalWrite(pin4, HIGH);
  digitalWrite(pin5, HIGH);
  digitalWrite(pin6, HIGH);
  digitalWrite(pin7, HIGH);
  digitalWrite(pin8, HIGH);
  digitalWrite(pin9, HIGH);
  digitalWrite(pin10, HIGH);
  digitalWrite(pin11, HIGH);
  digitalWrite(pin12, LOW);
  digitalWrite(pinA0, LOW);
  digitalWrite(pinA1, LOW);
  digitalWrite(pinA2, HIGH);
  digitalWrite(pinA3, HIGH);
  delayMicroseconds(10000);
}


void B() {
  digitalWrite(pin1, LOW);
  digitalWrite(pin2, LOW);
  digitalWrite(pin3, LOW);
  digitalWrite(pin4, LOW);
  digitalWrite(pin5, LOW);
  digitalWrite(pin6, LOW);
  digitalWrite(pin7, LOW);
  digitalWrite(pin8, HIGH);
  digitalWrite(pin9, LOW);
  digitalWrite(pin10, LOW);
  digitalWrite(pin11, LOW);
  digitalWrite(pin12, HIGH);
  digitalWrite(pinA0, HIGH);
  digitalWrite(pinA1, HIGH);
  digitalWrite(pinA2, LOW);
  digitalWrite(pinA3, LOW);
  delayMicroseconds(7000);
  digitalWrite(pin1, HIGH);
  digitalWrite(pin2, HIGH);
  digitalWrite(pin3, HIGH);
  digitalWrite(pin4, HIGH);
  digitalWrite(pin5, HIGH);
  digitalWrite(pin6, HIGH);
  digitalWrite(pin7, HIGH);
  digitalWrite(pin8, LOW);
  digitalWrite(pin9, HIGH);
  digitalWrite(pin10, HIGH);
  digitalWrite(pin11, HIGH);
  digitalWrite(pin12, LOW);
  digitalWrite(pinA0, LOW);
  digitalWrite(pinA1, LOW);
  digitalWrite(pinA2, HIGH);
  digitalWrite(pinA3, HIGH);
  delayMicroseconds(10000);
}

void C() {
  digitalWrite(pin1, LOW);
  digitalWrite(pin2, LOW);
  digitalWrite(pin3, LOW);
  digitalWrite(pin4, LOW);
  digitalWrite(pin5, LOW);
  digitalWrite(pin6, LOW);
  digitalWrite(pin7, LOW);
  digitalWrite(pin8, HIGH);
  digitalWrite(pin9, LOW);
  digitalWrite(pin10, LOW);
  digitalWrite(pin11, LOW);
  digitalWrite(pin12, HIGH);
  //    digitalWrite(pinA0,HIGH);
  digitalWrite(pinA1, LOW);
  digitalWrite(pinA2, LOW);
  digitalWrite(pinA3, LOW);
  delayMicroseconds(4000);
  digitalWrite(pin1, HIGH);
  digitalWrite(pin2, HIGH);
  digitalWrite(pin3, HIGH);
  digitalWrite(pin4, HIGH);
  digitalWrite(pin5, HIGH);
  digitalWrite(pin6, HIGH);
  digitalWrite(pin7, HIGH);
  digitalWrite(pin8, LOW);
  digitalWrite(pin9, HIGH);
  digitalWrite(pin10, HIGH);
  digitalWrite(pin11, HIGH);
  digitalWrite(pin12, LOW);
  digitalWrite(pinA0, LOW);
  digitalWrite(pinA1, HIGH);
  digitalWrite(pinA2, HIGH);
  digitalWrite(pinA3, HIGH);
  delayMicroseconds(1000);
}

void D() {
  digitalWrite(pin1, LOW);
  digitalWrite(pin2, LOW);
  digitalWrite(pin3, LOW);
  digitalWrite(pin4, LOW);
  digitalWrite(pin5, LOW);
  digitalWrite(pin6, LOW);
  digitalWrite(pin7, LOW);
  digitalWrite(pin8, HIGH);
  digitalWrite(pin9, LOW);
  digitalWrite(pin10, LOW);
  digitalWrite(pin11, LOW);
  digitalWrite(pin12, HIGH);
  digitalWrite(pinA0, LOW);
  digitalWrite(pinA1, HIGH);
  digitalWrite(pinA2, LOW);
  digitalWrite(pinA3, LOW);
  delayMicroseconds(7000);
  digitalWrite(pin1, HIGH);
  digitalWrite(pin2, HIGH);
  digitalWrite(pin3, HIGH);
  digitalWrite(pin4, HIGH);
  digitalWrite(pin5, HIGH);
  digitalWrite(pin6, HIGH);
  digitalWrite(pin7, HIGH);
  digitalWrite(pin8, LOW);
  digitalWrite(pin9, HIGH);
  digitalWrite(pin10, HIGH);
  digitalWrite(pin11, HIGH);
  digitalWrite(pin12, LOW);
  //    digitalWrite(pinA0,HIGH);
  digitalWrite(pinA1, LOW);
  digitalWrite(pinA2, HIGH);
  digitalWrite(pinA3, HIGH);
  delayMicroseconds(1500);
}

void E() {
  digitalWrite(pin1, LOW);
  digitalWrite(pin2, LOW);
  digitalWrite(pin3, LOW);
  digitalWrite(pin4, LOW);
  digitalWrite(pin5, LOW);
  digitalWrite(pin6, LOW);
  digitalWrite(pin7, LOW);
  digitalWrite(pin8, HIGH);
  digitalWrite(pin9, LOW);
  digitalWrite(pin10, LOW);
  digitalWrite(pin11, LOW);
  digitalWrite(pin12, HIGH);
  digitalWrite(pinA0, HIGH);
  digitalWrite(pinA1, LOW);
  digitalWrite(pinA2, LOW);
  digitalWrite(pinA3, LOW);
  delayMicroseconds(7000);
  digitalWrite(pin1, HIGH);
  digitalWrite(pin2, HIGH);
  digitalWrite(pin3, HIGH);
  digitalWrite(pin4, HIGH);
  digitalWrite(pin5, HIGH);
  digitalWrite(pin6, HIGH);
  digitalWrite(pin7, HIGH);
  digitalWrite(pin8, LOW);
  digitalWrite(pin9, HIGH);
  digitalWrite(pin10, HIGH);
  digitalWrite(pin11, HIGH);
  digitalWrite(pin12, LOW);
  digitalWrite(pinA0, LOW);
  digitalWrite(pinA1, HIGH);
  digitalWrite(pinA2, HIGH);
  digitalWrite(pinA3, HIGH);
  delayMicroseconds(10000);
}


void test() {
  digitalWrite(pin1, LOW);
  digitalWrite(pin2, LOW);
  digitalWrite(pin3, LOW);
  digitalWrite(pin4, LOW);
  digitalWrite(pin5, LOW);
  digitalWrite(pin6, LOW);
  digitalWrite(pin7, LOW);
  digitalWrite(pin8, LOW);
  digitalWrite(pin9, LOW);
  digitalWrite(pin10, LOW);
  digitalWrite(pin11, LOW);
  digitalWrite(pin12, LOW);
  digitalWrite(pinA0, LOW);
  digitalWrite(pinA1, LOW);
  digitalWrite(pinA2, LOW);
  digitalWrite(pinA3, LOW);
  delayMicroseconds(7000);
  digitalWrite(pin1, HIGH);
  digitalWrite(pin2, HIGH);
  digitalWrite(pin3, HIGH);
  digitalWrite(pin4, HIGH);
  digitalWrite(pin5, HIGH);
  digitalWrite(pin6, HIGH);
  digitalWrite(pin7, HIGH);
  digitalWrite(pin8, HIGH);
  digitalWrite(pin9, HIGH);
  digitalWrite(pin10, HIGH);
  digitalWrite(pin11, HIGH);
  digitalWrite(pin12, HIGH);
  digitalWrite(pinA0, HIGH);
  digitalWrite(pinA1, HIGH);
  digitalWrite(pinA2, HIGH);
  digitalWrite(pinA3, HIGH);
  delayMicroseconds(10000);
}

Credits

Vishalsoniindia

36 projects • 50 followers

I am an electrical engineer⚡🔌 Checkout my Youtube channel

Hack Wrist Watch LCD With Arduino || D-type LCD || Arduin...