Dash Button Santa with Arduino MKR1000

We took advantage of a button inside and the Neopixel strip in the scarf.

The pixels tell us the status of the Dash Button Santa.

• Pixel 1 red, pixel 2 blue and pixel 3 green, attemping to connect to WiFi.

• 3 pixels orange blink, WiFi error.

• 3 pixels red blink, error RTC.

• 3 pixels red, device off. Location not sent to Santa.

• 3 pixels blue, location sent to Santa.

• 3 pixels blue blinking, Christmas Day !!!!!

• 3 pixels green, Santa claus left the presents and pressed the button.

All this you can see in the next section where we talk about the code.

Arduino Sketch

In the sketch several libraries are used that facilitate the task of managing the connections with the services and controlling the time to know when it is Christmas.

You will need different accounts to use the service. We are working on improving it and not depend on third parties :).

You will need the following to make it work:

• Google API key

• IFTTT key

• SSID WiFi

• Password WiFi

The whole code is very well explained. Any questions you can leave in the comments of this article.

To store the state in local and to be able to know in which state it was if it is disconnected we have used FlashStorage that simulates an EEPROM memory.

To control the day and the month, we have done it through RTCZero.

In addition we leave you two links so that you download the WiFi101 modified library and the WifiLocation.

You can find the links to the libraries in GitHub, in the section of libraries of this article.

/* 
 DashButtonSanta 
 Send information to Santa Claus about the status of the gift request. It uses the geolocation through the WiFi, 
 of the Google API, and it is sent to Firebase, along with the state and with the MAC (key value) of the Arduino MKR1000. 
 It also sends the information to Twitter @ dashbuttonsanta and to the email [email protected] through IFTTT. 
 On the web https://programarfacil.com/proyectos/dashbuttonsanta/tracking-santa.html you can follow the status of all requests. 
 When at the end Santa leaves the gifts on the site sent to Twitter and the email, press the button and gives the delivery finished. 
 States: 
 0 => Device OFF (LED color red) 
 1 => I have behaved well, I have made the bed, I have cleaned the dishes, I have helped an old lady, I pray every night, etc ... 
      and I have sent the letter :) (LED color blue) 
 2 => Is Christmas Day (LED blink color blue) 
 3 => Santa claus left the presents and pressed the button (LED blink color green) 
 Errors: 
  Wifi shield not present => LED blink Color(233, 149, 16) 
  NTP unreachable => LED blink Color(150, 0, 0) 
 The circuit: 
  Arduino MKR1000 
  Pushbutton to pin 6 
  pull-down resistor to pushbutton 
  3 addressable LEDs 
 Created 2017 
 By https://programarfacil.com 
 Luis del Valle @ldelvalleh 
 Germán Martín @gmag12 
*/ 
#include <Adafruit_NeoPixel.h> 
#include <WiFi101.h> 
#include <WiFiUdp.h> 
#include <RTCZero.h> 
#include <FlashStorage.h> 
#include "WifiLocation.h" 
// Fill these fields with your data 
#define GOOGLE_API_KEY "YOURGOOGLEAPIKEY" 
#define IFTTTKEY "YOURIFTTTKEY" 
#define SSID "WIFISID" 
#define PASS "WIFPASS" 
// Constants 
#define DASHBUTTON 6 // Button 
#define PINNEO     7 // Pin Neopixel 
#define NUMPIXELS  3 // Num pixels 
#define HOST "dash-button-arduino.firebaseio.com" // Host Firebase 
#define HOSTIFTTT "maker.ifttt.com" // Host IFTTT to send tweet and email 
#define TWITTEREVENT "tweet_santa" // Event name IFTTT Twitter 
#define EMAILEVENT "email_santa" // Event name IFTTT email 
#define SANTAEVENT "santa_santa" // Event name IFTTT Twitter Santa Claus 
#define D_DAY 25 // Christmas Day 
#define M_MONTH 12 // Christmas Month 
#define LOC_PRECISSION 4 // Accuracy of location data to control privacy 
// Neopixel 
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PINNEO, NEO_GRB + NEO_KHZ800); 
// Dash Button States 
int dashButtonState = 0; 
volatile bool makeUpdate = false; 
// Reserve a portion of flash memory to store an "int" variable 
// and call it "state_dashbutton". 
FlashStorage(state_dashbutton, int); 
// RTC with WiFi 
RTCZero rtc; 
const int GMT = 1; 
int status = WL_IDLE_STATUS; 
WiFiClient client; 
// Info person 
byte mac[6]; 
location_t location; 
void setup() { 
 // Init Neopixel 
 pixels.begin(); 
 // Read the content of state_dashbutton 
 dashButtonState = state_dashbutton.read(); 
 pixels.setPixelColor(0, pixels.Color(150, 0, 0)); 
 pixels.show(); 
 pixels.setPixelColor(1, pixels.Color(0, 0, 150)); 
 pixels.show(); 
 pixels.setPixelColor(2, pixels.Color(0, 150, 0)); 
 pixels.show(); 
 // WiFi configuration 
 configWiFi(); 
 // Get location using WiFi networks around 
 getLocation(); 
 // Update Dash Button state 
 putRequest(dashButtonState); 
 // Init Dash Button 
 pinMode(DASHBUTTON, INPUT); 
 // Init interrupt 
 attachInterrupt(digitalPinToInterrupt(DASHBUTTON), dashbuttonAction, RISING); 
 // RTC configuration 
 configRTC(); 
 // Random seed 
 randomSeed(analogRead(A0)); 
} 
void loop() { 
 // Off 
 if (dashButtonState == 0) 
 { 
   for (int i = 0; i < NUMPIXELS; i++) { 
     // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255 
     pixels.setPixelColor(i, pixels.Color(150, 0, 0)); 
     pixels.show(); 
   } 
 } 
 // Location sended but not Christmas day 
 else if (dashButtonState == 1 && rtc.getDay() != D_DAY && rtc.getMonth() != M_MONTH) 
 { 
   for (int i = 0; i < NUMPIXELS; i++) { 
     pixels.setPixelColor(i, pixels.Color(0, 0, 150)); 
     pixels.show(); 
   } 
 } 
 // Location sended and Christmas day 
 else if (dashButtonState == 1 && rtc.getDay() == D_DAY && rtc.getMonth() == M_MONTH) 
 { 
   blinkNeopixel(pixels.Color(0, 0, 150)); 
 } 
 // Shipping 
 else if (dashButtonState == 2) 
 { 
   for (int i = 0; i < NUMPIXELS; i++) { 
     pixels.setPixelColor(i, pixels.Color(0, 150, 0)); 
     pixels.show(); 
   } 
 } 
 // If need update 
 if (makeUpdate) 
 { 
   // Change Dash Button State 
   if (dashButtonState == 0) 
   { 
     pixels.setPixelColor(0, pixels.Color(150, 0, 0)); 
     pixels.show(); 
     pixels.setPixelColor(1, pixels.Color(0, 0, 150)); 
     pixels.show(); 
     pixels.setPixelColor(2, pixels.Color(0, 0, 150)); 
     pixels.show(); 
     if (putRequest(1)) 
     { 
       // Send Email 
       sendEmail(); 
       delay(2000); 
       // Send Twitter 
       sendToTwitterPerson(); 
       dashButtonState = 1; 
     } 
   } 
   // Only Christmas Day 
   else if (dashButtonState == 1 && rtc.getDay() == D_DAY && rtc.getMonth() == M_MONTH) 
   { 
     pixels.setPixelColor(0, pixels.Color(0, 0, 150)); 
     pixels.show(); 
     pixels.setPixelColor(1, pixels.Color(0, 150, 0)); 
     pixels.show(); 
     pixels.setPixelColor(2, pixels.Color(0, 150, 0)); 
     pixels.show(); 
     if (putRequest(2)) 
     { 
       sendToTwitterSanta(); 
       dashButtonState = 2; 
     } 
   } 
   // Change state in FlashStorage 
   state_dashbutton.write(dashButtonState); 
 } 
 makeUpdate = false; 
} 
// Callback interruption 
void dashbuttonAction() 
{ 
 noInterrupts(); 
 if (!makeUpdate) 
   makeUpdate = true; 
 interrupts(); 
} 
void blinkNeopixel(uint32_t c) 
{ 
 for (int i = 0; i < NUMPIXELS; i++) { 
   pixels.setPixelColor(i, pixels.Color(0, 0, 0)); 
   pixels.show(); 
 } 
 delay(500); 
 for (int i = 0; i < NUMPIXELS; i++) { 
   pixels.setPixelColor(i, c); 
   pixels.show(); 
 } 
 delay(500); 
} 
/**************** WiFi Connection ****************/ 
void configWiFi() 
{ 
 // check for the presence of the shield: 
 if (WiFi.status() == WL_NO_SHIELD) { 
   // don't continue: 
   while (true) 
   { 
     // Show error shield not present 
     blinkNeopixel(pixels.Color(233, 149, 16)); 
   } 
 } 
 // attempt to connect to Wifi network: 
 while (status != WL_CONNECTED) { 
   // Connect to WPA/WPA2 network. Change this line if using open or WEP network: 
   status = WiFi.begin(SSID, PASS); 
   // wait 10 seconds for connection: 
   delay(10000); 
 } 
 // Get mac 
 WiFi.macAddress(mac); 
} 
/**************** RTCZero ****************/ 
void configRTC() 
{ 
 // Init RTC 
 rtc.begin(); 
 unsigned long epoch; 
 int numberOfTries = 0, maxTries = 6; 
 do { 
   epoch = WiFi.getTime(); 
   numberOfTries++; 
 } 
 while ((epoch == 0) || (numberOfTries > maxTries)); 
 if (numberOfTries > maxTries) { 
   while (1) 
   { 
     { 
       // Show error RTC 
       blinkNeopixel(pixels.Color(150, 0, 0)); 
     } 
   } 
 } 
 else { 
   rtc.setEpoch(epoch); 
 } 
} 
/**************** HTTP PUT Request to Firebase ****************/ 
bool putRequest(int newDashButtonState) 
{ 
 String keyMac = ""; 
 for (int i = 0; i < 6; i++) 
 { 
   String pos = String((uint8_t)mac[i], HEX); 
   if (mac[i] <= 0xF) 
     pos = "0" + pos; 
   pos.toUpperCase(); 
   keyMac += pos; 
   if (i < 5) 
     keyMac += ":"; 
 } 
 // close any connection before send a new request. 
 client.stop(); 
 client.flush(); 
 // send SSL request 
 if (client.connectSSL(HOST, 443)) { 
   // PUT request 
   String toSend = "PUT /persons/"; 
   toSend += keyMac; 
   toSend += ".json HTTP/1.1\r\n"; 
   toSend += "Host:"; 
   toSend += HOST; 
   toSend += "\r\n" ; 
   toSend += "Content-Type: application/json\r\n"; 
   String payload = "{\"lat\":"; 
   payload += String(location.lat, LOC_PRECISSION); 
   payload += ","; 
   payload += "\"lon\":"; 
   payload += String(location.lon, LOC_PRECISSION); 
   payload += ","; 
   payload += "\"prec\":"; 
   payload += String(location.accuracy); 
   payload += ","; 
   payload += "\"status\": \""; 
   payload += newDashButtonState; 
   payload += "\"}"; 
   payload += "\r\n"; 
   toSend += "Content-Length: " + String(payload.length()) + "\r\n"; 
   toSend += "\r\n"; 
   toSend += payload; 
   client.println(toSend); 
   client.println(); 
   client.flush(); 
   client.stop(); 
   return true; 
 } else { 
   // if you couldn't make a connection: 
   client.flush(); 
   client.stop(); 
   return false; 
 } 
} 
/**************** Send to Twitter IFTTT ****************/ 
void sendToTwitterPerson() 
{ 
 requestIFTTT(TWITTEREVENT); 
} 
void sendToTwitterSanta() 
{ 
 requestIFTTT(SANTAEVENT); 
} 
/**************** Send email IFTTT ****************/ 
void sendEmail() 
{ 
 requestIFTTT(EMAILEVENT); 
} 
/**************** Request IFTTT ****************/ 
void requestIFTTT(String eventName) 
{ 
 for (int i = 0; i < 3; i++) 
 { 
   // close any connection before send a new request. 
   if (client.connected()) 
   { 
     client.stop(); 
   } 
   client.flush(); 
   // Random request: from IFTTT Twitter publish Cannot send duplicate tweet. 
   long randomRequest = random(1, 10000); 
   // send SSL request 
   if (client.connectSSL(HOSTIFTTT, 443)) { 
     // Make a HTTP request: 
     String toSend = "GET /trigger/"; 
     toSend += eventName; 
     toSend += "/with/key/"; 
     toSend += IFTTTKEY; 
     toSend += "?value1="; 
     toSend += String(location.lat, LOC_PRECISSION); 
     toSend += "&value2="; 
     toSend += String(location.lon, LOC_PRECISSION); 
     toSend += "&value3="; 
     toSend += randomRequest; 
     toSend += " HTTP/1.1\r\n"; 
     toSend += "Host: maker.ifttt.com\r\n"; 
     toSend += "Connection: close\r\n\r\n"; 
     client.print(toSend); 
     break; 
   } else { 
     // if you couldn't make a connection: 
   } 
 } 
 client.flush(); 
 client.stop(); 
} 
/**************** Get Location info ****************/ 
bool getLocation() { 
 WifiLocation gLocation(GOOGLE_API_KEY); 
 location = gLocation.getGeoFromWiFi(); 
 return (location.accuracy < 100); 
} 

Conclusions

In this project we wanted to demonstrate that simply with a little ingenuity and an Arduino MKR1000, we can track anything.

We have used free services that allow us to prototype and create technology in a simple and economical way.

Although this is just a project for The Arduino Internet of Holyday Things, we hope that we can inspire you so that you can create your own project based on our idea.

We would appreciate any comments and suggestions. Many thanks for your attention and Oh Oh Oh Merry Christmas!