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• CC3200 to the rescue!

  Alan Kilian • 01/06/2016 at 15:13 • 0 comments

  I managed to the the Xively C client running on the TI CC3200 Launch-XL module.

  This is going to be the perfect platform for the new boiler monitor using Xively.

  I will be able to publish temperatures and even (if I want to) subscribe to channels so I could control the boiler remotely.

  Also, Jeff gave me a board with five Opto-22 input modules, so I'll get those hooked up to monitor the three "call-for'heat" signals and the gas-valve-open signals so I can publish those along with the temperature data.

  I'll need to look into the analog inputs on the CC3200 or build an A/D and connect it Nothing too difficult.

  This is very exciting.

• New job!

  Alan Kilian • 03/07/2015 at 16:51 • 0 comments

  I just took a job at an actual Internet Of Things company (Xively), so I'll soon be replacing this with an actual professional IOT system. I'll keep this project log updated as I learn how to use the professional toys.

• Remaining problem

  Alan Kilian • 02/14/2015 at 20:43 • 0 comments

  Sometimes the system stops sending data to sparkfun.

  If I reset the Arduino it doesn't help.

  If I power-cycle the Linksys running DD-WRT, it comes back, so there's something wrong over there.

  I think I'll change to using a WiFi shield now that I know what I'm doing and get rid of the Linksys/DD-WRT altogether.

• Here's the Arduino code to read 6 TMP036 sensors, average them and push them up to data.sparkfun.com

  Alan Kilian • 02/14/2015 at 20:40 • 0 comments

  Here's the code for my Arduino MEGA2560 and whatever Ethernet shield I got.

  It came from sparkfun's example page and I just added reading the six analog inputs, averaging several samples and converting to degree-F before pushing the data to sparkfun.

  /*****************************************************************
  Phant_Ethernet.ino
  Post data to SparkFun's data stream server system (phant) using
  an Arduino and an Ethernet Shield.
  Jim Lindblom @ SparkFun Electronics
  Original Creation Date: July 3, 2014
  
  This sketch uses an Arduino Uno to POST sensor readings to 
  SparkFun's data logging streams (http://data.sparkfun.com). A post
  will be initiated whenever pin 3 is connected to ground.
  
  Before uploading this sketch, there are a number of global vars
  that need adjusting:
  1. Ethernet Stuff: Fill in your desired MAC and a static IP, even
     if you're planning on having DCHP fill your IP in for you.
     The static IP is only used as a fallback, if DHCP doesn't work.
  2. Phant Stuff: Fill in your data stream's public, private, and 
  data keys before uploading!
  
  Development environment specifics:
      IDE: Arduino 1.0.5
      Hardware Platform: RedBoard & PoEthernet Shield
  
  This code is beerware; if you see me (or any other SparkFun 
  employee) at the local, and you've found our code helpful, please 
  buy us a round!
  
  Much of this code is largely based on David Mellis' WebClient
  example in the Ethernet library.
  
  Distributed as-is; no warranty is given.
  *****************************************************************/
  #include <SPI.h> // Required to use Ethernet
  #include <EthernetV2_0.h> // The Ethernet library includes the client
  
  ///////////////////////
  // Ethernet Settings //
  ///////////////////////
  // Enter a MAC address for your controller below.
  byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
  // if you don't want to use DNS (and reduce your sketch size)
  // use the numeric IP instead of the name for the server:
  //IPAddress server(54,86,132,254);  // numeric IP for data.sparkfun.com
  char server[] = "data.sparkfun.com";    // name address for data.sparkFun (using DNS)
  // Set the static IP address to use if the DHCP fails to assign
  IPAddress ip(192,168,2,200);
  
  // Initialize the Ethernet client library
  // with the IP address and port of the server 
  // that you want to connect to (port 80 is default for HTTP):
  EthernetClient client;
  
  /////////////////
  // Phant Stuff //
  /////////////////
  const String publicKey = "YOURPUBLIKKEY";
  const String privateKey = "YOURPRIVATEKEY";
  const byte NUM_FIELDS = 6;
  const String fieldNames[NUM_FIELDS] = {"boilerout", "boilerreturn", "zone2out", "zone2return", "zone3out", "zone3return"};
  String fieldData[NUM_FIELDS];
  #define BOILEROUT     0
  #define BOILERRETURN  1
  #define ZONE2OUT      2
  #define ZONE2RETURN   3
  #define ZONE3OUT      4
  #define ZONE3RETURN   5
  
  #define LEDPIN 13
  //////////////////////
  // Input Pins, Misc //
  //////////////////////
  #define SDCARD_CS 4
  
  bool print = 0;
  
  void setup()
  {
    // Set Up Ethernet:
    // start serial port:
    Serial.begin(9600);
    pinMode(SDCARD_CS,OUTPUT);
    pinMode(0, INPUT);
    pinMode(1, INPUT);
    pinMode(2, INPUT);
    pinMode(3, INPUT);
    pinMode(4, INPUT);
    pinMode(5, INPUT);
    
    pinMode(LEDPIN, OUTPUT);
    
    digitalWrite(SDCARD_CS,HIGH);//Deselect the SD card
    
    // give the ethernet module time to boot up:
    delay(1000);
    // start the Ethernet connection:
    if (Ethernet.begin(mac) == 0) {
      if(print) Serial.println("Failed to configure Ethernet using DHCP");
    }
  
    Serial.println(F("=========== Ready to Stream ==========="));
  }
  
  void loop()
  {
    int i,j;
    float temps[NUM_FIELDS][10];
    float average[NUM_FIELDS];
    char buffer[80];  // Buffer to convert from binary to ASCII
  
    // Read each sensor ten times at a rate of 1 Hz. THis takes (10 times NUM_SAFIELDS) in seconds (60 for this example)
    for(i=0;i<10;i++) {
      for(j=8;j<8+NUM_FIELDS;j++) {
        analogRead(j);
        delay(10);
        analogRead(j);
        delay(10);
        temps[j-8][i] = ((((analogRead(j) * 5.0) / 1024.0) - 0.5) * 100 * 9.0 / 5.0) + 32.0;
        if(print) Serial.print(j-8); if(print) Serial.print(...

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• How to graph the data?

  Alan Kilian • 02/10/2015 at 18:04 • 0 comments

  Looking around for sparkfun IOT chart, I found that imp.guru can grab and plot data from sparkfun if you just hand over the public keys!

  So I have imp.guru/f48 showing live data. NICE!

  But I wanted to make charts with Input and Output temperatures together, I stumbled onto phant.io http://phant.io/graphing/google/2014/07/07/graphing-data/ where they describe how to use google charts to plot data.

  I took a few hours and got charts! http://bobodyne.com/boiler

  I'm pretty happy that I can look at the boiler, show other engineers what's going on and keep track of things.

  I want to add temp sensors on zone #1 (Basement) and maybe an outside air temperature also.

• Where to push the data?

  Alan Kilian • 02/10/2015 at 17:59 • 0 comments

  I looked at Exosite.com to see if I could use their service for free for a while and didn't get it working with their Arduino examples.

  It turns out that there are two different Ethernet shields/libraries and the Exosite examples were for the other one.

  But I did find that sparkfun has a data service and Arduino examples at data.sparkfun.com and I was running almost immediately.

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