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What is Industry 4.0?

  What is Industry 4.0 and what are some of the technologies that are driving it? Industry 4.0 is a term that refers to the fourth industrial revolution, which is characterized by the integration of digital technologies, such as artificial intelligence, cloud computing, big data, the internet of things, robotics, and 3D printing, into the manufacturing sector. Industry 4.0 aims to create smart factories that are more efficient, flexible, and responsive to customer needs and market changes. Some of the technologies that are enabling Industry 4.0 are: - Artificial intelligence (AI) : AI is the ability of machines to perform tasks that normally require human intelligence, such as reasoning, learning, decision-making, and problem-solving. AI can help optimize production processes, improve product quality, reduce costs, and enhance customer satisfaction. - Cloud computing: Cloud computing is delivering computing services, such as servers, storage, databases, software, and analytics, over t
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Playing with Buttons

Button

Pushbuttons or switches connect two points in a circuit when you press them. This example turns on the built-in LED on pin 13 when you press the button.

Hardware

  • Arduino Board

  • Momentary button or Switch

  • 10K ohm resistor

  • hook-up wires

  • breadboard

Circuit diagram


Code

// constants won't change. They're used here to
// set pin numbers:
const int buttonPin = 2;     // the number of the pushbutton pin
const int ledPin =  13;      // the number of the LED pin
// variables will change:
int buttonState = 0;         // variable for reading the pushbutton status
void setup() {
  Serial.begin(9600);
  // initialize the LED pin as an output:
  pinMode(ledPin, OUTPUT);
  // initialize the pushbutton pin as an input:
  pinMode(buttonPin, INPUT);
}
void loop() {
  // read the state of the pushbutton value:
  buttonState = digitalRead(buttonPin);
  // Show the state of pushbutton on serial monitor
  Serial.println(buttonState);
  // check if the pushbutton is pressed.
  // if it is, the buttonState is HIGH:
  if (buttonState == HIGH) {
    // turn LED on:
    digitalWrite(ledPin, HIGH);
  } else {
    // turn LED off:
    digitalWrite(ledPin, LOW);
  }
  // Added the delay so that we can see the output of button
  delay(100);
}

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Home Automation

A smart system made by using Node MCU dev board. What is Node MCU? NodeMCU is an open-source firmware for which open-source prototyping board designs are available. The name "NodeMCU" combines "node" and "MCU" (micro-controller unit). The term "NodeMCU" strictly speaking refers to the firmware rather than the associated development kits.  Both the firmware and prototyping board designs are open source. Requirments Node MCU 4 channel relay toggle switch * 4 Hi-links (220v ac to 5v dc) Circuit Diagram Program #ifdef ENABLE_DEBUG         #define DEBUG_ESP_PORT Serial         #define NODEBUG_WEBSOCKETS         #define NDEBUG #endif #include <Arduino.h> #include <ESP8266WiFi.h> #include "SinricPro.h" #include "SinricProSwitch.h" #include <map> #define WIFI_SSID         "your wifi name"     #define WIFI_PASS         "your wifi pass" #define APP_KEY           "this code is prov
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Turn LED On and Off Through LDR

  LDR An LDR ( Light Dependent Resistor ) is a component that has a (variable) resistance that changes with the light intensity that falls upon it. This allows them to be used in light sensing circuits. A photoresistor is made of a high resistance semiconductor. Hardware Required Arduino Board LED 220 ohm resistor LDR 10k ohms resistor Circuit Diagram Code int ldr=A0; //Set A0(Analog Input) for LDR. int value= 0 ; void setup () { Serial . begin ( 9600 ); pinMode ( 3 ,OUTPUT); } void loop () { value= analogRead (ldr); //Reads the Value of LDR(light). Serial . println ( "LDR value is :" ); //Prints the value of LDR to Serial Monitor. Serial . println (value); if (value< 300 )   {     digitalWrite ( 3 ,HIGH); //Makes the LED glow in Dark.   }   else   {     digitalWrite ( 3 ,LOW); //Turns the LED OFF in Light.   } }
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Temperature sensor

About the LM35 The LM35 is an inexpensive, precision Centigrade temperature sensor made by  Texas Instruments . It provides an output voltage that is linearly proportional to the Centigrade temperature and is, therefore, very easy to use with the Arduino. The sensor does not require any external calibration or trimming to provide accuracies of ±0.5°C at room temperature and ±1°C over the −50°C to +155°C temperature range. One of the downsides of the sensor is that it requires a negative bias voltage to read negative temperatures. So if that is needed for your project, I recommend using the DS18B20 or TMP36 instead. The TMP36 by Analog Devices is very similar to the LM35 and can read temperatures from -40°C to 125°C without any external components Note that the sensor operates on a voltage range of 4 to 30 V and that the output voltage is independent of the supply voltage. The LM35 is part of a series of analog temperature sensors sold by Texas Instruments. Other members of the series i
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MQ2 Gas Sensor

 About Gas Sensor The MQ series of gas sensors use a small heater inside with an electrochemical sensor. They are sensitive to a range of gasses and are used indoors at room temperature. The output is an analog signal and can be read with an analog input of the Arduino. The MQ-2 Gas Sensor module is useful for gas leakage detection in homes and industries. It can detect LPG, i-butane, propane, methane, alcohol, hydrogen, and smoke. Some modules have a built-in variable resistor to adjust the sensitivity of the sensor. Note:  The sensor becomes very hot after a while, don't touch it! Required  Arduino UNO Breadboard MQ-2 Gas sensor module Red, Green led 5mm 220 Ohm Buzzer The connections are pretty easy: The MQ-5 sensor Pin-> Wiring to Arduino Uno A0-> Analog pins D0-> none GND-> GND VCC-> 5V other components Pin-> Wiring to Arduino Uno D13-> +ve of buzzer GND-> -ve of buzzer D12-> anode of red light D11-> anode of green light GND-> cathode of red li
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Play a melody with a Piezo speaker

  Play a Melody using the tone() function This example shows how to use the  tone()  command to generate notes. It plays a little melody you may have heard before. Hardware Required Arduino board piezo buzzer or a speaker hook-up wires Making header file To make the pitches.h file, either click on the button just below the serial monitor icon and choose "New Tab", or use Ctrl+Shift+N. Then paste in the following code: /************************************************* * Public Constants *************************************************/ # define NOTE_B0 31 # define NOTE_C1 33 # define NOTE_CS1 35 # define NOTE_D1 37 # define NOTE_DS1 39 # define NOTE_E1 41 # define NOTE_F1 44 # define NOTE_FS1 46 # define NOTE_G1 49 # define NOTE_GS1 52 # define NOTE_A1 55 # define NOTE_AS1 58 # define NOTE_B1 62 # define NOTE_C2 65 # define NOTE_CS2 69 # define NOTE_D2 73 # define NOTE_DS2 78 # define NOTE_E2 82 # define NOTE_F2 87 # de
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Seven Segment Display Interfacing with Arduino

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Mini Oscilloscope via Arduino Nano

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Fade an LED

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Fire Alarm with arduino

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