The Internet of Things (IOT)

Published March 2, 2017 © LGPL

IoT Dimmer

An IoT LED Lamp Dimmer.

IntermediateShowcase (no instructions)5,565

Things used in this project

Hardware components

SparkFun WiFi Breakout - CC3000

Led Lamp

Arduino Micro

Android device

Software apps and online services

IoT Switch And Dimmer

Story

The Internet of Things (IOT).

is a new emerging technology these days, a self configurable and adaptive system consisting of networks of sensors and other object including intelligent objects whose purpose is to interconnect with all things, including everyday and industrial objects, in such a way that they become intelligent, programmable and more capable of interacting with humans.

All the applications that involve IOT, whether industrial, home, etc. Are controlled and monitored by certain parameters which are implemented and executed by the user or "other". Therefore, their implementation and execution differs with the sets of parameters, for the execution that is specified or desired by the user.

Arduino board is one of the important objects in this ecosystem, since it facilitates us to connect and control different devices like sensors, LEDs, step motors, servos and mobile phones.

This tutorial describes how to create an Internet of Things with Android and Arduino:

Android Application to control a matrix led lamp ocording to user button slider input. All objects are in the same network for simplicity.

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The above images shown a above diagram of the system. It consist of 1 commercial matrix led lamp of 24 10000 MCD (milli-candela's) leds with features:

Supply Voltage:----------------------------------- 5 VOLTS
Voltage Drop Across LED (Forward V):--- 3.4 VOLTS
Maximum LED Current:------------------------- 20 MILLIAMPS
# of LEDs connected in parallel:------------ 24 LEDs

The resistor value needed for the current limiting resistor used when powering the LEDs.

Calculated Limiting Resistor:------------------- 3.333 OHMS
Nearest higher rated 10% resistor:----------- 3.9 OHM
Calculated Resistor Wattage:------------------ 0.768 WATTS
Recommended Resistor power rating of:-- 1.28 WATTS

This is then interfaced to the microcontroller Arduino Micro on a PWM pin. Then we have IOT implementation taking place with the help of CC3000 which is then allowing us to upload the parameters which are displayed using mobile App which in this case is above is a hosting platform.

The mobile device sends information to the IOT "CC3000" which is interfaced with the Arduino Micro, the information is obtained from the knob switch in the app, and is sent to the Arduino Micro by means of a UDP server that runs on the mobile app and with the help of the CC3000, this way we can drive (middling) the led lamp.

Code

ATmega32u4_LED_Dimmer

/*
*	Author		: Zavala Ortiz Vicente Arturo.
*	language	: .ino
*	Date		: Friday April 18 2014.
*	Update		: Friday June  06 2014.
*	Name		: ATmega32u4_ServoObjectTracking.ino
*	Description : Tracks circle coloresd objects
*/
#include <avr/delay.h>

#define LED_LAMP                        10

/*		WiFi libs			*/
#include "CC3000.h"
#include "CC3000_Client.h"
#include "common.h"


void setup()
{
	/* add setup code here */
	ConnectionInfo connection_info;
	
	// Initialize CC3000 (configure SPI communications)
	#ifdef CC3000_DEBUG
		Serial.begin(115200);
	#endif
	
	// Initialize CC3000 (configure SPI communications)
	if(!wifi.init(9)) {
		#ifdef CC3000_DEBUG
		DEBUGPRINTLN(PSTR("Initialize CC3000 FAIL!"));
		#endif
		return;
	}

	else {
		//FreeRam();
		#ifdef CC3000_DEBUG
			DEBUGPRINTLN(PSTR("Initialize CC3000 OK"));
		#endif
	}

	if(!wifi.connect(ap_ssid, ap_security, ap_password, timeout)) 
	{
		#ifdef CC3000_DEBUG
			DEBUGPRINTLN(PSTR("Error: Could not connect to AP!"));
		#endif
	}
	
	
	// Gather connection details and print IP address
	if(!wifi.getConnectionInfo(connection_info) )
	{
		#ifdef CC3000_DEBUG
		DEBUGPRINTLN(PSTR("Error: Could not obtain connection details"));
		#endif
		return;
	}
	
	else
	{
		#ifdef CC3000_DEBUG
		DEBUGPRINT(PSTR("IP Address: "));
		printIPAddr(connection_info.ip_address);
		#endif
	}

	pin_mode(LED_LAMP, OUTPUT);
}

void loop()
{
	  recvfrom(res);
	  
	  http_gets(data, "led", res);
	  value = atoi(data);
	  
	  analogWrite(LED_LAMP, value);
}

Credits

vicente zavala

11 projects • 24 followers

Freelance Programmer, Internet Of Things (IOT), CNC Plasma Cutting Creator, Software Developer.

IoT Dimmer

Things used in this project

Hardware components

Software apps and online services

Story

The Internet of Things (IOT).

Schematics

basic schematic

Code

ATmega32u4_LED_Dimmer

Credits

vicente zavala

Comments

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IoT Dimmer

IoT Dimmer

Things used in this project

Hardware components

Software apps and online services

Story

The Internet of Things (IOT).

Schematics

basic schematic

Code

ATmega32u4_LED_Dimmer

Credits

vicente zavala

Comments

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