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Keypad locker system

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 Locker Prototype 01 Circuit: Simulate Code: #include <Keypad.h> #include <Servo.h> Servo servo1; int servoPin = 11; int pos; int indicator = 12; const byte ROWS = 4;  const byte COLS = 4;  char hexaKeys[ROWS][COLS] = {   {'1', '2', '3', 'A'},   {'4', '5', '6', 'B'},   {'7', '8', '9', 'C'},   {'*', '0', '#', 'D'} }; byte rowPins[ROWS] = {2,3,4,5};  byte colPins[COLS] = {6,7,8,9};  Keypad customKeypad = Keypad(makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);  int pass = 0; void setup(){   servo1.attach(servoPin);   servo1.write(0);   Serial.begin(9600);   Serial.println("Enter the password");   Serial.println("Enter C for clear");   Serial.println("Enter D for Lock");   pinMode(indicator, OUTPUT);   digitalWrite(indicator, 0); }    void loop(){   char customKey = customKeypad.getKey();      if (customKey){    // Ser
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Weapon Prototype

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Turret  Prototype 01 With DC motor as a gun controller With 360 degrees servo as a gun controller YouTube:  Video Circuit: Code: (With DC motor as gun controller, this code is under modification) #include <Servo.h> #include <HCSR04.h> Servo base; void rotateBase(); void shoot(); int pir = 5; int trig = 11; int echo = 10; int laser = 13; int gun = 3; int motion = 0, detect = 0, shot = 0, minDistance = 100; long distance = 0; float duration = 0; float oneRotation = 10.87; //DC Motor's one rotation time taken in ms int loaded = 0; void setup() {   base.attach(2);   pinMode(pir, INPUT);   pinMode(laser, OUTPUT);   pinMode(trig, OUTPUT);   pinMode(echo, INPUT);   Serial.begin(9600);   base.write(90);   digitalWrite(laser, OUTPUT);   digitalWrite(gun, OUTPUT); } void loop() {   motion = digitalRead(pir);   if (motion == 1)   {     digitalWrite(laser, 1);     rotateBase();   }   else   {     digitalWrite(laser, 0);   } } void rotateBase() {   int basePos = 90;   for (basePos =
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Basic Remote control car

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 Basic Remote control car with IRremote Prototype 01 YouTube:  video   Circuit: The LEDs connected in the circuit indicates that they are connected to 2 wheels of the car respectively with the help of motor driver. YouTube:  Video Code 1: (Basic remote control car without password) #include <IRremote.h> int RECV_PIN = 2; IRrecv sensor(RECV_PIN); decode_results value1; #define front 1904 #define back 3952 #define right 752 #define left 2800 void forward(); void backward(); void turnleft(); void turnright(); void Stop(); int m1p1 = 6; int m1p2 = 7; int m2p1 = 8; int m2p2 = 9; int led = 13; int number = 0, value = 0; void setup() {   Serial.begin(9600);   sensor.enableIRIn();   pinMode(led, OUTPUT);   pinMode(m1p1, OUTPUT);   pinMode(m1p2, OUTPUT);   pinMode(m2p1, OUTPUT);   pinMode(m2p2, OUTPUT); } void loop() {   if (sensor.decode(&value1)) {     unsigned int state = value1.value;     if (state == 2704 ) {       digitalWrite(led, HIGH);       value = 1;     }     sensor.resume
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