viernes, 21 de junio de 2019

IoT Thing Speak ESP8266

https://circuits4you.com/2017/12/09/thingspeak-esp8266/

Thing Speak ESP8266

December 9, 2017ESP8266, IoT Tutorialscloud data upload, ESP8266, sensor, thingspeak

ThingSpeak™ is an IoT analytics cloud platform service that allows you to aggregate, visualize and analyze live data streams in the cloud. ThingSpeak provides instant visualizations of data posted by ESP8266 to ThingSpeak. ThingSpeak is often used for prototyping and proof of concept IoT systems that require analytics.

In this tutorial, We will learn following thinds

How to Configuring ThingSpeak Cloud server Account ?
How to program ESP8266 to upload sensor data ?

Lets understand the cloud concept first. Uploading of ESP8266 sensor data is done using Internet. It is three step process.

Connect to your WiFi hot spot having internet access.
Read Sensor data
Upload data to ThingSpeak

Step 1: Sign up ThingSpeak

Its simple just enter your email id and verify your account.

Step 2: Configuring ThingSpeak

Configuration is just few clicks job

Step 2.1: Create New Channel

Click on New Channel
Create Channel Thing speak for ESP8266

Enter Name and Field. You may have multiple Fields depending on number of sensor create multiple fields such as Light, Temperature, Humidity, etc.
Enter Name and Label thing speak esp8266

Enter Name and Label thing speak esp8266

Keep everything else as it is. Blank or default values. and click on Save Channel. thing speak save channel

Step 2.2: Getting API Key

Click on API Key Tab and look for these two fields Write Api Key and Update channel feed line.
api key esp8266 thing speak

This line is important for data upload to cloud server

GET <span class="str">https://api.thingspeak.com/update?api_key=<span class="customcode">akjshfajkhfowei</span>&field1=<span class="customcode">0</span></span>

1	GET <span class="str">https://api.thingspeak.com/update?api_key=<span class="customcode">akjshfajkhfowei</span>&field1=<span class="customcode">0</span></span>

First parameter is Api Key. Do not share API key it makes decision of which user it is. In most cases I create own cloud server as per requirements. Second parameter is field1=0 here you can pass the ADC value ex. field1=1234
value in front of field1=0 is your sensor data for example if your adc value is 1234 then you call this GET request with https://api.thingspeak.com/update?api_key=yourapikey&field1=1234
For multiple sensors you need to add multiple fields as shown in below example
https://api.thingspeak.com/update?api_key=yourapikey&field1=1234&field2=442

Step 3: Programming ESP8266 to upload data to ThingSpeak cloud server

Make Changes in program for API KEY, SSID and PASSWORD

/*
 * HTTP Client
 * Copyright (c) 2015, circuits4you.com
 * All rights reserved.
/* Connects to WiFi HotSpot. */

#include <ESP8266WiFi.h>
#include <WiFiClient.h> 
#include <ESP8266WebServer.h>

/* Set these to your desired credentials. */
const char *ssid = "yournetworkSSID";  //ENTER YOUR WIFI SETTINGS <<<<<<<<<
const char *password = "yourPassword";

//Web address to read from
const char *host = "api.thingspeak.com";
String apiKey = "Your API KEY";  //ENTER YOUR API KEY <<<<<<<<<<<
//=======================================================================
//                    Power on setup
//=======================================================================

void setup() {
  delay(1000);
  Serial.begin(115200);

  WiFi.mode(WIFI_STA);        //This line hides the viewing of ESP as wifi hotspot
  //WiFi.mode(WIFI_AP_STA);   //Both hotspot and client are enabled
  //WiFi.mode(WIFI_AP);       //Only Access point
  
  WiFi.begin(ssid, password);     //Connect to your WiFi router
  Serial.println("");

  Serial.print("Connecting");
  // Wait for connection
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  //If connection successful show IP address in serial monitor
  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());  //IP address assigned to your ESP
}

//=======================================================================
//                    Main Program Loop
//=======================================================================
void loop() {
  WiFiClient client;          
  const int httpPort = 80; //Port 80 is commonly used for www
 //---------------------------------------------------------------------
 //Connect to host, host(web site) is define at top 
 if(!client.connect(host, httpPort)){
   Serial.println("Connection Failed");
   delay(300);
   return; //Keep retrying until we get connected
 }
 
//---------------------------------------------------------------------
  //Make GET request as pet HTTP GET Protocol format
  String ADCData;
  int adcvalue=analogRead(A0);  //Read Analog value of LDR
  ADCData = String(adcvalue);   //String to interger conversion
  String Link="GET /update?api_key="+apiKey+"&field1=";  //Requeste webpage  
  Link = Link + ADCData;
  Link = Link + " HTTP/1.1\r\n" + "Host: " + host + "\r\n" + "Connection: close\r\n\r\n";                
  client.print(Link);
  delay(100);
  
//---------------------------------------------------------------------
 //Wait for server to respond with timeout of 5 Seconds
 int timeout=0;
 while((!client.available()) && (timeout < 1000))     //Wait 5 seconds for data
 {
   delay(10);  //Use this with time out
   timeout++;
 }

//---------------------------------------------------------------------
 //If data is available before time out read it.
 if(timeout < 500)
 {
     while(client.available()){
        Serial.println(client.readString()); //Response from ThingSpeak       
     }
 }
 else
 {
     Serial.println("Request timeout..");
 }

 delay(5000);  //Read Web Page every 5 seconds
}
//=======================================================================

* HTTP Client

/* Connects to WiFi HotSpot. */

#include <ESP8266WiFi.h>

#include <WiFiClient.h>

#include <ESP8266WebServer.h>

/* Set these to your desired credentials. */

const char *ssid = "yournetworkSSID"; //ENTER YOUR WIFI SETTINGS <<<<<<<<<

const char *password = "yourPassword";

//Web address to read from

const char *host = "api.thingspeak.com";

String apiKey = "Your API KEY"; //ENTER YOUR API KEY <<<<<<<<<<<

//=======================================================================

// Power on setup

//=======================================================================

void setup() {

delay(1000);

Serial.begin(115200);

WiFi.mode(WIFI_STA); //This line hides the viewing of ESP as wifi hotspot

//WiFi.mode(WIFI_AP_STA); //Both hotspot and client are enabled

//WiFi.mode(WIFI_AP); //Only Access point

WiFi.begin(ssid, password); //Connect to your WiFi router

Serial.println("");

Serial.print("Connecting");

// Wait for connection

while (WiFi.status() != WL_CONNECTED) {

delay(500);

Serial.print(".");

}

//If connection successful show IP address in serial monitor

Serial.println("");

Serial.print("Connected to ");

Serial.println(ssid);

Serial.print("IP address: ");

Serial.println(WiFi.localIP()); //IP address assigned to your ESP

}

//=======================================================================

// Main Program Loop

//=======================================================================

void loop() {

WiFiClient client;

const int httpPort = 80; //Port 80 is commonly used for www

//---------------------------------------------------------------------

//Connect to host, host(web site) is define at top

if(!client.connect(host, httpPort)){

Serial.println("Connection Failed");

delay(300);

return; //Keep retrying until we get connected

}

//---------------------------------------------------------------------

//Make GET request as pet HTTP GET Protocol format

String ADCData;

int adcvalue=analogRead(A0); //Read Analog value of LDR

ADCData = String(adcvalue); //String to interger conversion

String Link="GET /update?api_key="+apiKey+"&field1="; //Requeste webpage

Link = Link + ADCData;

Link = Link + " HTTP/1.1\r\n" + "Host: " + host + "\r\n" + "Connection: close\r\n\r\n";

client.print(Link);

delay(100);

//---------------------------------------------------------------------

//Wait for server to respond with timeout of 5 Seconds

int timeout=0;

while((!client.available()) && (timeout < 1000)) //Wait 5 seconds for data

{

delay(10); //Use this with time out

timeout++;

}

//---------------------------------------------------------------------

//If data is available before time out read it.

if(timeout < 500)

{

while(client.available()){

Serial.println(client.readString()); //Response from ThingSpeak

}

else

{

Serial.println("Request timeout..");

}

delay(5000); //Read Web Page every 5 seconds

}

//=======================================================================

Upload Program and Open Serial monitor with baud rate of 115200. First it will show connection status to your wifi router then It uploads data to server and displays response from server. Do not try to upload data at very high rate ThingSpeak server will simply blocks it. 5 Seconds update time is okay.

Step 4: Check Data on ThingSpeak Server

Open Your ThingSpeak Account and Click on Private View of Your Channel
thingspeak esp8266 dataupload

You did it well….Thats it….You can Create multiple Fields and Upload multiple sensor data. and also you can create multiple channels for multiple Data Nodes.
In case of any problem upload your project on Steps2Make.com to hear from me.

martes, 18 de junio de 2019

Materiales de apoyo para curso de IoT Internet de las Cosas

Materiales de apoyo para curso de IoT Internet de las Cosas

https://cursointernetdelascosas.es/

Introducción al IoT Introducción al IoT
Hardware IoT Hardware
Software IoT Software
Protocolos de comunicación Protocolos comunicación
Plataformas IoT Plataformas IoT
Arquitecturas, IIoT y cierre Arquitecturas e IIoT

Dirigido a: Profesionales, profesores, técnicos, ingenieros y en general personas que tengan interés en conocer herramientas esenciales para empezar a hacer proyectos en el ámbito del Internet de las Cosas.

Objetivos:
- Entenderás los campos de aplicación del Internet de las Cosas
- Identificarás la tecnología que lo compone
- Desarrollarás arquitecturas IoT
- Programarás dispositivos conectados
- Harás uso de plataformas web para generar servicios
- Serás capaz de identificar los protocolos de comunicación necesarios

Prácticas:
La modalidad del curso permite que cada alumno escoja el tipo de materiales que desea utilizar para llevar a cabo prácticas en el curso: placas Arduino Yún Standard o Mini, placas Arduino Uno o Mega + Shields, módulo ESP8266...

http://www.mouser.com/news/allthingsiot-ebook1/mobile/index.html?utm_source=BusinessWire&utm_medium=pr&utm_campaign=EIT-AllThingsIoT_ebook1&utm_content=2018-11-07#p=3
Introducción al IoT
Línea de tiempo de la Automatización del Hogar
Introducción a la Automatización del Hogar
Arquitecturas y Protocolos para Sistemas de Automatización del Hogar
Selección de Hardware para Automatización del Hogar
Demistificando los Asistentes Digitales
Conectividad para IoT de rango Corto
Tecnología LEDS y Wireless para construir luces inteligentes
Hogares con ojos, oidos y sentidos
cuando los desarrolladores de IoT pueden aprrender de Bloqueos Inteligentes

https://bsginstitute.com/Transformacion-Digital/Curso-Internet-de-las-cosas-IoT-7546
¿Qué es el Internet de las Cosas (IoT)?
Los dispositivos finales del Internet de las Cosas (IoT)
La red de comunicación del Internet de las Cosas (IoT)
La programación orientada al Internet de las Cosas (IoT)
La seguridad en el Internet de las Cosas (IoT)
Armando el rompecabezas del Internet de las Cosas (IoT)

lunes, 17 de junio de 2019

Internet of Things with esp8266

Circus Of Things. Control Fan Speed from Dashboard. Thing: ESP32.

https://www.youtube.com/watch?v=hGW3wlUNRfc&fbclid=IwAR2tg5UzIQuY3nxFrG2Cw8SJyjM_B7karEAFdRJESebrr8cYDTo0GBfZ-ng

https://www.youtube.com/watch?v=RnT9xRnxBgg

Internet of Things - ESP8266 Fundamentos tecnicos para el Control de las Casas Inteligentes

TelegramBot solo usando el #ESP8266

https://www.youtube.com/watch?v=Gd0aG_DExkw

Trabajar con capas Paint.net y de donde lo descargo

Paint.NET - Tutorial - Parte 7 - Capas (Primera Parte)

https://www.youtube.com/watch?v=d5jdkpjzVJM

Descargar Paint.net

http://www.mediafire.com/file/qbt7w4rd7o5zaw2/Paint.NET.3.5.11.Install.zip
https://www.youtube.com/watch?v=gsoyGEsZEng

sábado, 8 de junio de 2019

Paiza Cloud and Ruby Hello World with Sinatra

Paiza Cloud and Ruby Hello World with Sinatra

1. Create account in paiza.cloud

2. Create New file: myapp.rb

# my_app.rb
require 'sinatra'

get '/' do
 'Hello world!'
end

3. Open Terminal:
Install sinatra:
sudo gem install sinatra

4. Terminal:
ruby myapp.rb

5. Icon
In the left side create icon 4567
Click
https://localhost-profeitm-1.paiza-user.cloud:4567/

And there apper the app. Hello World

References:
https://www.netguru.com/codestories/first-steps-sinatra-1
https://engineering.paiza.io/entry/paizacloud_sinatra

miércoles, 5 de junio de 2019

2019-1 Metodos de Ordenamiento en C - HeapSort, MergeSort, QuicSort - Los más rápidos

https://www.youtube.com/watch?v=oUN22ZfCiYA&list=PLv8T5gGiWU16_JxOguQwaY1PnZWoIpQ2J

Ordenamiento por el método Merge Sort - Mezcla - Codigo en c, Ejecutable

Ordenamiento por el método Merge Sort - Mezcla

Código en c
ejecutable
presentación pptx

https://cloud.mail.ru/public/4mK5/23cHzSxoJ

https://youtu.be/bONDMMtCgoo

Los 7 números de prueba son:
38 27 43 3 9 82 10

ingrese los 7 numeros a ordenar
38
ingrese los 7 numeros a ordenar
27
ingrese los 7 numeros a ordenar
43
ingrese los 7 numeros a ordenar
3
ingrese los 7 numeros a ordenar
9
ingrese los 7 numeros a ordenar
82
ingrese los 7 numeros a ordenar
10
arreglo generado: 38 27 43 3 9 82 10
arreglo ordenado: 3 9 10 27 38 43 82
Presione una tecla para continuar . . .

-----------------------
Otros datos de Prueba:
5 6 1 2 3 7 4

ingrese los 7 numeros a ordenar
5
ingrese los 7 numeros a ordenar
6
ingrese los 7 numeros a ordenar
1
ingrese los 7 numeros a ordenar
2
ingrese los 7 numeros a ordenar
3
ingrese los 7 numeros a ordenar
7
ingrese los 7 numeros a ordenar
4
arreglo generado: 5 6 1 2 3 7 4
arreglo ordenado: 1 2 3 4 5 6 7
Presione una tecla para continuar . . .

Ordenamiento por el método Heap Sort - Montículos - Código en c, diagrama de flujo

Ordenamiento por el método Heap Sort - Montículos
En los enlaces se puede encontrar:
Código en c
archivo de prueba
presentación en ppt
diagrama de flujo
Ejecutable

https://cloud.mail.ru/public/3gxs/ga9TdUWfi
codigo.c
codigo.exe
diagrama.fprg
Diapositivas(heapsort).pptx
vectordesordenado.txt

https://youtu.be/oUN22ZfCiYA