Individual assignment:

Design, build, and connect wired or wireless node(s) with network or bus addresses

We started with an on-line introduction like always in these days. And basically we are going to use the system of arduion again, this software. turned into a really powerfull tool.

Serial communication is used for the exchange of information between the microcontrollers and a computer or other devices. All microcontroller have at least one serial port that allows communication in a direct way or also gives the possibility of connecting wireless communication modules such as Bluetooth, ZigBee, LiFi and others. First of all, we were understanidng everything posible about the purposes, serial buses, physical media, modulation, channel sharing, errors, networking and RF form this page link with more information

Then,

We started the practice.

//Slave 1
							#include 
 
								void setup() {
								  // Pines en modo salida
								  pinMode(13, OUTPUT);
								  pinMode(12, OUTPUT);
								  pinMode(11, OUTPUT);
								  pinMode(10, OUTPUT);
								  pinMode(9, OUTPUT);
								 
								  // Unimos este dispositivo al bus I2C con dirección 1 (Esclavo 1)
								  Wire.begin(1);
								 
								  // Registramos el evento al recibir datos
								  Wire.onReceive(llegaDato);
								 
								
								}
								 
								void loop() {
								  delay(30);
								}
								 
								// Función que se ejecuta siempre que se reciben datos del maestro
								// siempre que en el master se ejecute la sentencia endTransmission
								// recibirá toda la información que hayamos pasado a través de la sentencia Wire.write
								void llegaDato() 
								{
								 
								  int pinOut = 0;
								  int estado = 0;
								 
								  // Si hay dos bytes disponibles
								 if (Wire.available() == 2)
									pinOut = Wire.read();
								 if (Wire.available() == 1) 
									estado = Wire.read();
								
								 
								  // Activamos/desactivamos salida
								  digitalWrite((pinOut),estado);

Preparing the software to learn about it.

Working with some basic tools.

Editing colors and some basic stuff.

Having the results.

//Slave 2
															#include 
																void setup() {
																  pinMode(13, OUTPUT);    // Pines en modo salida
																  Wire.begin(2); // Unimos este dispositivo al bus I2C con dirección 2 (Esclavo 2)
																  Wire.onReceive(llegaDato);
																}
																 
																void loop() {
																  delay(30);
																}
																
																void llegaDato(){  
																  int estado = 0;
																  if (Wire.available() == 1) // Si hay un byte disponible
																  {
																	estado = Wire.read();
																  }
																  digitalWrite(13,estado);   // Activamos/desactivamos salida depende del Maestro
																}

I added some other options to still learn about this software.

//Slave 3
							
															#include 
															 
																void setup() {
																  // Pines en modo salida
																  pinMode(13, OUTPUT);
																  pinMode(8, OUTPUT);
																
																  Wire.begin(3);// Unimos este dispositivo al bus I2C con dirección 3 (Esclavo 3)
																  Wire.onReceive(llegaDato);
																
																}
																 
																void loop() {
																  delay(30);
																}
																void llegaDato() {
																  int estado = 0;
																
																  // Si hay un byte disponible
																  if (Wire.available() == 1)
																  {
																	estado = Wire.read();
																
																  }
																 
																  // Activamos/desactivamos salidas po pin 8 y 13,
																  //el esto lo determina el Maestro
																  
																  digitalWrite(13,estado);
																  digitalWrite(8,estado);
																}
																						
																						
//Master
																			
																			
															#include 
															
															byte pin[] = {9, 10, 11, 12, 13};
															byte estado = 0;
															byte retardo = 100;
															int ValorSensor = 0;
															
															void setup() {
															pinMode(3,INPUT);
															Wire.begin();
															
															}
															
															void loop() {
															for (int i = 0; i < 5; i++)
															{
															Wire.beginTransmission(1);  // Transmite al Esclavo 1
															Wire.write(pin[i]);
															Wire.write(estado);
															Wire.endTransmission();
															
															Wire.beginTransmission(2); // Transmite al Esclavo 2
															Wire.write(estado);
															Wire.endTransmission();
															
															Wire.beginTransmission(3); // Transmite al Esclavo 3
															Wire.write(i);
															Wire.endTransmission();   
															
															delay(retardo);
															}
															
															if (estado == 0)
															{
															estado = 1;
															}
															else
															{
															estado = 0;
															}
																										
																										
//Rceptor
												
															char dato;
											
															void setup() 
															{
															  pinMode(12,OUTPUT);
															  Serial.begin(9600);
															}
															
															void loop() 
															{
															  if(Serial.available()>0)
															  {
																dato=Serial.read();
																if(dato=="E")
																{
																  digitalWrite(12,HIGH);
																}
																if(dato=="A")
																{
																  digitalWrite(12,LOW);
																}
															  }
															  delay(500);
															}
																						
																						
//Transmitter
															
															void setup() 
											{
											pinMode(7,INPUT); //configura al pin de entrada 
											Serial.begin(9600); //configura la comunicación
											}
											
											void loop() 
											{
											if(digitalRead(7)==LOW)
											{
											Serial.print("E");
											}
											else
											{
											Serial.print("A");
											}
											delay(500);
											}

We couldn´t work in the laboratory that´s why we made all the practice for the virtual way.

Conclusion

  • Make it virtual sometimes make it harder, but it is a good way to be safe.

Files