John Hart
Published © GPL3+

ESP8266/ESP-12 Arduino Powered SmartThings DS18B20 Thermo

We all like to know what the current room temperature is. Maybe you need to monitor the temperature in your pet Lizard's penthouse?

BeginnerFull instructions provided2 hours7,264
ESP8266/ESP-12 Arduino Powered SmartThings DS18B20 Thermo

Things used in this project

Hardware components

NodeMCU ESP8266 Breakout Board
NodeMCU ESP8266 Breakout Board
×1
Samsung SmartThings Hub
Samsung SmartThings Hub
×1
DS18B20 Temperature Sensor
×1

Software apps and online services

Arduino IDE
Arduino IDE
GitHUB
SmartThings IDE
SmartThings Mobile App

Story

Read more

Code

ESP8266_ST_Anything_Multiples_DS18B20_Share

Arduino
Arduino sketch to load to your NodeMCU ESP12 0.9 after modifying it with your WiFi and SmartThings creds.
//******************************************************************************************
//  File: ST_Anything_Multiples_ESP8266WiFi.ino
//  Authors: Dan G Ogorchock & Daniel J Ogorchock (Father and Son)
//
//  Summary:  This Arduino Sketch, along with the ST_Anything library and the revised SmartThings 
//            library, demonstrates the ability of one NodeMCU ESP8266 to 
//            implement a multi input/output custom device for integration into SmartThings.
//            The ST_Anything library takes care of all of the work to schedule device updates
//            as well as all communications with the NodeMCU ESP8266's WiFi.
//
//            ST_Anything_Multiples implements the following ST Capabilities as a demo of what is possible with a single NodeMCU ESP8266
//              - 1 x Alarm device (using a simple digital output)
//              - 1 x Contact Sensor devices (used to monitor magnetic door sensors)
//              - 1 x Switch devices (used to turn on a digital output (e.g. LED, relay, etc...)
//              - 1 x Motion devices (used to detect motion)
//              - 1 x Smoke Detector devices (using simple digital input)
//              - 1 x Temperature Measurement devices (Temperature from Dallas Semi 1-Wire DS18B20 device)
//              - 1 x Relay Switch devices (used to turn on a digital output for a set number of cycles And On/Off times (e.g.relay, etc...))
//              - 2 x Button devices (sends "pushed" if held for less than 1 second, else sends "held"
//              - 1 x Water Sensor devices (using the 1 analog input pin to measure voltage from a water detector board)
//    
//  Change History:
//
//    Date        Who            What
//    ----        ---            ----
//    2015-01-03  Dan & Daniel   Original Creation
//    2017-02-12  Dan Ogorchock  Revised to use the new SMartThings v2.0 library
//    2017-04-17  Dan Ogorchock  New example showing use of Multiple device of same ST Capability
//                               used with new Parent/Child Device Handlers (i.e. Composite DH)
//    2017-05-25  Dan Ogorchock  Revised example sketch, taking into account limitations of NodeMCU GPIO pins
//
//******************************************************************************************
//******************************************************************************************
// SmartThings Library for ESP8266WiFi
//******************************************************************************************
#include <SmartThingsESP8266WiFi.h>

//******************************************************************************************
// ST_Anything Library 
//******************************************************************************************
#include <Constants.h>       //Constants.h is designed to be modified by the end user to adjust behavior of the ST_Anything library
#include <Device.h>          //Generic Device Class, inherited by Sensor and Executor classes
#include <Sensor.h>          //Generic Sensor Class, typically provides data to ST Cloud (e.g. Temperature, Motion, etc...)
#include <Executor.h>        //Generic Executor Class, typically receives data from ST Cloud (e.g. Switch)
#include <InterruptSensor.h> //Generic Interrupt "Sensor" Class, waits for change of state on digital input 
#include <PollingSensor.h>   //Generic Polling "Sensor" Class, polls Arduino pins periodically
#include <Everything.h>      //Master Brain of ST_Anything library that ties everything together and performs ST Shield communications

//#include <PS_Illuminance.h>  //Implements a Polling Sensor (PS) to measure light levels via a photo resistor

//#include <PS_TemperatureHumidity.h>  //Implements a Polling Sensor (PS) to measure Temperature and Humidity via DHT library
#include <PS_DS18B20_Temperature.h>  //Implements a Polling Sesnor (PS) to measure Temperature via DS18B20 libraries 


//*************************************************************************************************
//NodeMCU v1.0 ESP8266-12e Pin Definitions (makes it much easier as these match the board markings)
//*************************************************************************************************
//#define LED_BUILTIN 16
//#define BUILTIN_LED 16
//
//#define D0 16  //no internal pullup resistor
//#define D1  5
//#define D2  4
#define D3  0  //must not be pulled low during power on/reset, toggles value during boot
//#define D4  2  //must not be pulled low during power on/reset, toggles value during boot
//#define D5 14
//#define D6 12
//#define D7 13
//#define D8 15  //must not be pulled high during power on/reset

//******************************************************************************************
//Define which Arduino Pins will be used for each device
//******************************************************************************************
//#define PIN_WATER_1               A0  //NodeMCU ESP8266 only has one Analog Input Pin 'A0'

//#define PIN_ALARM_1               D0  //SmartThings Capabilty "Alarm"
//#define PIN_SWITCH_1              D1  //SmartThings Capability "Switch"
//#define PIN_CONTACT_1             D2  //SmartThings Capabilty "Contact Sensor"
//#define PIN_BUTTON_1              D3  //SmartThings Capabilty Button / Holdable Button (Normally Open!)
//#define PIN_BUTTON_2              D4  //SmartThings Capabilty Button / Holdable Button (Normally Open!)
//#define PIN_MOTION_1              D5  //SmartThings Capabilty "Motion Sensor" (HC-SR501 PIR Sensor)
//#define PIN_SMOKE_1               D6  //SmartThings Capabilty "Smoke Detector"
#define PIN_TEMPERATURE_1         D3  //SmartThings Capabilty "Temperature Measurement" (Dallas Semiconductor DS18B20)
//#define PIN_TIMEDRELAY_1          D8  //SmartThings Capability "Relay Switch"

//******************************************************************************************
//ESP8266 WiFi Information
//******************************************************************************************
String str_ssid     = "YOUR_SSID";                           //  <---You must edit this line!
String str_password = "YOUR_SSID_PASSWORD";                   //  <---You must edit this line!
IPAddress ip(192, 168, 1, 11);       // Device IP Address      //  <---You must edit this line!
IPAddress gateway(192, 168, 1, 1);    //router gateway          //  <---You must edit this line!
IPAddress subnet(255, 255, 255, 0);   //LAN subnet mask         //  <---You must edit this line!
IPAddress dnsserver(192, 168, 1, 1);  //DNS server              //  <---You must edit this line!
const unsigned int serverPort = 8090; // port to run the http server on

// Smartthings Hub Information
IPAddress hubIp(192, 168, 1, 2);    // smartthings hub ip     //  <---You must edit this line!
const unsigned int hubPort = 39500;   // smartthings hub port

//******************************************************************************************
//st::Everything::callOnMsgSend() optional callback routine.  This is a sniffer to monitor 
//    data being sent to ST.  This allows a user to act on data changes locally within the 
//    Arduino sktech.
//******************************************************************************************
void callback(const String &msg)
{
//  Serial.print(F("ST_Anything Callback: Sniffed data = "));
//  Serial.println(msg);
  
  //TODO:  Add local logic here to take action when a device's value/state is changed
  
  //Masquerade as the ThingShield to send data to the Arduino, as if from the ST Cloud (uncomment and edit following line)
  //st::receiveSmartString("Put your command here!");  //use same strings that the Device Handler would send
}

//******************************************************************************************
//Arduino Setup() routine
//******************************************************************************************
void setup()
{
  //******************************************************************************************
  //Declare each Device that is attached to the Arduino
  //  Notes: - For each device, there is typically a corresponding "tile" defined in your 
  //           SmartThings Device Hanlder Groovy code, except when using new COMPOSITE Device Handler
  //         - For details on each device's constructor arguments below, please refer to the 
  //           corresponding header (.h) and program (.cpp) files.
  //         - The name assigned to each device (1st argument below) must match the Groovy
  //           Device Handler names.  (Note: "temphumid" below is the exception to this rule
  //           as the DHT sensors produce both "temperature" and "humidity".  Data from that
  //           particular sensor is sent to the ST Hub in two separate updates, one for 
  //           "temperature" and one for "humidity")
  //         - The new Composite Device Handler is comprised of a Parent DH and various Child
  //           DH's.  The names used below MUST not be changed for the Automatic Creation of
  //           child devices to work properly.  Simply increment the number by +1 for each duplicate
  //           device (e.g. contact1, contact2, contact3, etc...)  You can rename the Child Devices
  //           to match your specific use case in the ST Phone Application.
  //******************************************************************************************
  //Polling Sensors
 // static st::PS_Water               sensor1(F("water1"), 60, 20, PIN_WATER_1, 200);
  static st::PS_DS18B20_Temperature sensor2(F("temperature1"), 15, 0, PIN_TEMPERATURE_1, false, 10, 1); 
  
  //Interrupt Sensors 
 // static st::IS_Contact             sensor3(F("contact1"), PIN_CONTACT_1, LOW, true);
 // static st::IS_Button              sensor4(F("button1"), PIN_BUTTON_1, 1000, LOW, true, 500);
 // static st::IS_Button              sensor5(F("button2"), PIN_BUTTON_2, 1000, LOW, true, 500);
 // static st::IS_Motion              sensor6(F("motion1"), PIN_MOTION_1, HIGH, false);
 // static st::IS_Smoke               sensor7(F("smoke1"), PIN_SMOKE_1, HIGH, true, 500);

  //Special sensors/executors (uses portions of both polling and executor classes)
//  static st::S_TimedRelay           sensor8(F("relaySwitch1"), PIN_TIMEDRELAY_1, LOW, false, 3000, 0, 1);
  
  //Executors
//  static st::EX_Alarm executor1(F("alarm1"), PIN_ALARM_1, LOW, true);
//  static st::EX_Switch executor2(F("switch1"), PIN_SWITCH_1, LOW, true);  //Inverted logic for "Active Low" Relay Board
  
  //*****************************************************************************
  //  Configure debug print output from each main class 
  //  -Note: Set these to "false" if using Hardware Serial on pins 0 & 1
  //         to prevent communication conflicts with the ST Shield communications
  //*****************************************************************************
  st::Everything::debug=true;
  st::Executor::debug=true;
  st::Device::debug=true;
  st::PollingSensor::debug=true;
  st::InterruptSensor::debug=true;

  //*****************************************************************************
  //Initialize the "Everything" Class
  //*****************************************************************************

  //Initialize the optional local callback routine (safe to comment out if not desired)
  st::Everything::callOnMsgSend = callback;
  
  //Create the SmartThings ESP8266WiFi Communications Object
    //STATIC IP Assignment - Recommended
    st::Everything::SmartThing = new st::SmartThingsESP8266WiFi(str_ssid, str_password, ip, gateway, subnet, dnsserver, serverPort, hubIp, hubPort, st::receiveSmartString);
 
    //DHCP IP Assigment - Must set your router's DHCP server to provice a static IP address for this device's MAC address
    //st::Everything::SmartThing = new st::SmartThingsESP8266WiFi(str_ssid, str_password, serverPort, hubIp, hubPort, st::receiveSmartString);

  //Run the Everything class' init() routine which establishes WiFi communications with SmartThings Hub
  st::Everything::init();
  
  //*****************************************************************************
  //Add each sensor to the "Everything" Class
  //*****************************************************************************
//  st::Everything::addSensor(&sensor1);
  st::Everything::addSensor(&sensor2);
//  st::Everything::addSensor(&sensor3);
//  st::Everything::addSensor(&sensor4); 
//  st::Everything::addSensor(&sensor5); 
//  st::Everything::addSensor(&sensor6); 
//  st::Everything::addSensor(&sensor7);  
//  st::Everything::addSensor(&sensor8);  
      
  //*****************************************************************************
  //Add each executor to the "Everything" Class
  //*****************************************************************************
//  st::Everything::addExecutor(&executor1);
//  st::Everything::addExecutor(&executor2);
    
  //*****************************************************************************
  //Initialize each of the devices which were added to the Everything Class
  //*****************************************************************************
  st::Everything::initDevices();
  
}

//******************************************************************************************
//Arduino Loop() routine
//******************************************************************************************
void loop()
{
  //*****************************************************************************
  //Execute the Everything run method which takes care of "Everything"
  //*****************************************************************************
  st::Everything::run();
}

Github

https://github.com/DanielOgorchock/ST_Anything

Credits

John Hart

John Hart

5 projects • 12 followers
Blinked my first LED in August 2016...had never even heard of Arduino before then. Now I CAN'T STOP MAKING THINGS! Arduino UNO & ESP8266

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