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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, ov...
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IR Protocol

 Introduction to IR Protocol

IR or infrared communication is one of the most common methods of wireless communication due to being easy to use and having an affordable price. Infrared light, with a wavelength longer than visible light, is not within the range of human vision. That’s why it’s a good option for wireless communications. When you press a button on your TV control, an LED on your control turns on and off continuously and causes a modulated infrared signal to send from the control to your TV. The command will execute after the signal is demodulated. IR receiver modules are used to receive IR signals. These modules work in 3, 8 kHz frequency. When the sensor is not exposed to any light at its working frequency, the Vout output has a value equal to VS (power supply). With exposure to a 38 kHz infrared light, this output will be zero.



Find the Code for each Remote Control Button

In this part, we want to set up a connection between the Arduino and an IR sender and receiver. To do this, we first need to know the code for each button on the remote control. By pressing each button, a specific signal sends to the receiver and will be displayed on the Serial Monitor window.

Circuit


Code

You need to install the IR library to use an IR module. Download the library from the following link and in the Sketch window, open the Include library option and select IRRemote.h.

This library may be available in your Arduino libraries by default. In this case, you don’t need to install it.

#include <IRremote.h>  //including infrared remote header file    
int RECV_PIN = 7; // the pin where you connect the output pin of IR sensor    
IRrecv irrecv(RECV_PIN);    
decode_results results;    
void setup()    
{    
Serial.begin(9600);    
irrecv.enableIRIn();    
{    
void loop()    
{    
if (irrecv.decode(&results))// Returns 0 if no data ready, 1 if data ready.    
{    
 int results.value = results;// Results of decoding are stored in result.value    
 Serial.println(" ");    
 Serial.print("Code: ");    
 Serial.println(results.value); //prints the value a a button press    
 Serial.println(" ");    
 irrecv.resume(); // Restart the ISR state machine and Receive the next value    
}

NOTE:

irrecv.decode(&results) function decodes the received IR signal and stores it in variable results. It returns 0 when nothing is received.

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