Handmade MKR1000 IoT Christmas show made of colored cardboard paper.
Things used in this project
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Story
This project was made to be an interactive Christmas decoration, the tree LEDs, music played and the arms of Santa and Elf are all controlled using a phone app created using MIT App Inventor that communicates with the Arduino MKR1000.
First I made a cone shaped paper and painted it green.
Then I have added green cardboard to create leaves of the tree.
Then creating white snow effect using white cardboard.

Soldering LED lines I have made three lines:

Creating the star on top of the tree.

Then I have used gift paper to make gifts under the tree.


I have cut down the shapes of both Santa and Elf and connected servo motors to each arm of them.

Custom parts and enclosures
Schematics
Mini Christmas show
Connection diagram

Code
Mini Christmas Show
Arduino
#include <DFRobotDFPlayerMini.h> //DFPlayer MP3 Module control library #include <Servo.h> //Servo motors control library #include <WiFi101.h> //Wifi library //Defining constants for pins //Santa and Elf Outputs const int SantaRHand = 0; const int SantaLHand = 1; const int ElfRHand = 2; const int ElfLHand = 3; //Tree Star pins const int TreeStar1 = 6; const int TreeStar2 = 7; const int TreeStar3 = 8; //Tree Star Patterns const int TreeLine1 = 9; const int TreeLine2 = 10; const int TreeLine3 = 11; //Defining variables //Defining Tree Pattern Variable int TreePattern = 1; //Defining MP3 player variable int CurrentSong =1; DFRobotDFPlayerMini myDFPlayer; //Creating DFPlayer object Servo myservo1; //Santa right hand instance Servo myservo2; //Santa left hand instance Servo myservo3; //Elf right hand instance Servo myservo4; //Elf left hand instance char ssid[] = "YourSSIDName"; // your network SSID (name) char pass[] = "YourSSIDPassword"; // your network password //int keyIndex = 0; // your network key Index number (needed only for WEP) char current_state = 'a'; int status = WL_IDLE_STATUS; WiFiServer server(80); void setup() { Serial1.begin(9600); //Initializing serial communication to communicate with DFPlayer module //Set TreeLine Pins to Outputs pinMode(TreeLine1, OUTPUT); pinMode(TreeLine2, OUTPUT); pinMode(TreeLine3, OUTPUT); while(!myDFPlayer.begin(Serial1)){} //Wait until DFPlayer starts myDFPlayer.volume(30); //Setting the volume of DFPlayer 0-30 myservo1.attach(SantaRHand); //assigning servo objects to pins myservo2.attach(SantaLHand); myservo3.attach(ElfRHand); myservo4.attach(ElfLHand); // 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); } server.begin(); // start the web server on port 80 } void loop() { //////////////////////////////////////////////////////////////////////////////////////////// WiFiClient client = server.available(); // listen for incoming clients if (client) { // if you get a client String currentLine = ""; // make a String to hold incoming data from the client while (client.connected()) { // loop while the client's connected if (client.available()) { // if there's bytes to read from the client, char c = client.read(); // read a byte, then if (c == '\n') { // if the byte is a newline character // if the current line is blank, you got two newline characters in a row. // that's the end of the client HTTP request, so send a response: if (currentLine.length() == 0) { // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK) // and a content-type so the client knows what's coming, then a blank line: client.println("HTTP/1.1 200 OK"); client.println("Content-type:text/html"); client.println(); // the content of the HTTP response follows the header: //client.print("Click <a href=\"/H\">here</a> turn the LED on pin 6 on<br>"); // client.print("Click <a href=\"/L\">here</a> turn the LED on pin 6 off<br>"); // client.print("Click <a href=\"/B\">here</a> Blink the LED on pin 6 On and Off<br>"); // The HTTP response ends with another blank line: // client.println(); // break out of the while loop: break; } else { // if you got a newline, then clear currentLine: currentLine = ""; } } else if (c != '\r') { // if you got anything else but a carriage return character, currentLine += c; // add it to the end of the currentLine } // Check to see if the client request if (currentLine.endsWith("GET /A")) { current_state = 'a'; // Show start request StartGreeting(); //Jump to greeting function (move hands) myDFPlayer.play(1); //play first song on SD card } if (currentLine.endsWith("GET /B")) { current_state = 'b'; // Show stop request } if (currentLine.endsWith("GET /C")) { StartGreeting(); // Greeting request } //Tree Pattern Change Button if (currentLine.endsWith("GET /D")) { TreePattern = 1; //Change tree pattern } if (currentLine.endsWith("GET /E")) { TreePattern = 2; //Change tree pattern } if (currentLine.endsWith("GET /F")) { TreePattern = 3; //Change tree pattern } //Song Change Button if (currentLine.endsWith("GET /G")) { myDFPlayer.play(1); //Play First song } if (currentLine.endsWith("GET /H")) { myDFPlayer.play(3); //Play Second Song } if (currentLine.endsWith("GET /I")) { myDFPlayer.pause(); //Stop Playing songs (Pause) } } } // close the connection: client.stop(); } //////////////////////////////////////////////////////////////////////////////////////////// if (current_state == 'a') { // Show start request turnOnTree(); } if (current_state == 'b') { // Show Stop request turnOffTree(); myDFPlayer.pause(); } } void StartGreeting(){ myDFPlayer.play(2); //Play greeting sound analogWrite(TreeStar1,100); //adjust color of the star analogWrite(TreeStar2,100); analogWrite(TreeStar3,100); digitalWrite(TreeLine1, HIGH); //change tree lines pattern digitalWrite(TreeLine2, HIGH); digitalWrite(TreeLine3, HIGH); delay(6500); SantaElfHi(); //move hands SantaElfHi(); SantaElfHi(); analogWrite(TreeStar1,100); analogWrite(TreeStar2,100); analogWrite(TreeStar3,100); digitalWrite(TreeLine1, HIGH); digitalWrite(TreeLine2, HIGH); digitalWrite(TreeLine3, HIGH); delay(16000); } void SantaElfHi(){ //Move Santa and Elf Hands myservo1.write(7); delay(30); myservo2.write(70); delay(30); myservo3.write(7); delay(30); myservo4.write(70); delay(30); analogWrite(TreeStar1,200); analogWrite(TreeStar2,100); analogWrite(TreeStar3,200); digitalWrite(TreeLine1, HIGH); digitalWrite(TreeLine2, HIGH); digitalWrite(TreeLine3, HIGH); delay(1000); analogWrite(TreeStar1,0); analogWrite(TreeStar2,0); analogWrite(TreeStar3,0); digitalWrite(TreeLine1, LOW); digitalWrite(TreeLine2, LOW); digitalWrite(TreeLine3, LOW); myservo1.write(70); delay(30); myservo2.write(7); delay(30); myservo3.write(70); delay(30); myservo4.write(7); delay(30); delay(1000); } void turnOffTree(){ //turn off all leds analogWrite(TreeStar1,0); analogWrite(TreeStar2,0); analogWrite(TreeStar3,0); digitalWrite(TreeLine1, LOW); digitalWrite(TreeLine2, LOW); digitalWrite(TreeLine3, LOW); } void turnOnTree() { //turn on tree leds with the selected pattern switch (TreePattern) { case 1: analogWrite(TreeStar1,255); digitalWrite(TreeLine1, HIGH); delay(100); analogWrite(TreeStar1,0); analogWrite(TreeStar2,255); digitalWrite(TreeLine2, HIGH); delay(100); analogWrite(TreeStar2,0); analogWrite(TreeStar3,255); digitalWrite(TreeLine3, HIGH); delay(100); analogWrite(TreeStar3,0); digitalWrite(TreeLine1, LOW); digitalWrite(TreeLine2, LOW); digitalWrite(TreeLine3, LOW); delay(100); break; case 2: analogWrite(TreeStar1,255); analogWrite(TreeStar2,0); analogWrite(TreeStar3,255); digitalWrite(TreeLine1, HIGH); digitalWrite(TreeLine2, HIGH); digitalWrite(TreeLine3, HIGH); delay(100); analogWrite(TreeStar1,255); analogWrite(TreeStar2,255); analogWrite(TreeStar3,0); digitalWrite(TreeLine1, LOW); digitalWrite(TreeLine2, LOW); digitalWrite(TreeLine3, LOW); delay(50); analogWrite(TreeStar1,0); analogWrite(TreeStar2,255); analogWrite(TreeStar3,255); digitalWrite(TreeLine1, HIGH); digitalWrite(TreeLine2, HIGH); digitalWrite(TreeLine3, HIGH); delay(100); analogWrite(TreeStar1,255); analogWrite(TreeStar2,200); analogWrite(TreeStar3,100); digitalWrite(TreeLine1, LOW); digitalWrite(TreeLine2, LOW); digitalWrite(TreeLine3, HIGH); delay(100); analogWrite(TreeStar1,255); analogWrite(TreeStar2,0); analogWrite(TreeStar3,255); digitalWrite(TreeLine1, LOW); digitalWrite(TreeLine2, HIGH); digitalWrite(TreeLine3, LOW); delay(100); analogWrite(TreeStar1,255); analogWrite(TreeStar2,0); analogWrite(TreeStar3,0); digitalWrite(TreeLine1, HIGH); digitalWrite(TreeLine2, LOW); digitalWrite(TreeLine3, LOW); delay(100); analogWrite(TreeStar1,0); analogWrite(TreeStar3,255); digitalWrite(TreeLine1, LOW); digitalWrite(TreeLine2, LOW); digitalWrite(TreeLine3, LOW); delay(100); break; case 3: analogWrite(TreeStar1,255); digitalWrite(TreeLine1, HIGH); digitalWrite(TreeLine2, LOW); digitalWrite(TreeLine3, LOW); delay(60); analogWrite(TreeStar1,0); analogWrite(TreeStar2,255); digitalWrite(TreeLine1, LOW); digitalWrite(TreeLine2, HIGH); digitalWrite(TreeLine3, LOW); delay(60); analogWrite(TreeStar2,0); analogWrite(TreeStar3,255); digitalWrite(TreeLine1, LOW); digitalWrite(TreeLine2, LOW); digitalWrite(TreeLine3, HIGH); delay(60); analogWrite(TreeStar1,255); analogWrite(TreeStar3,255); digitalWrite(TreeLine1, LOW); digitalWrite(TreeLine2, HIGH); digitalWrite(TreeLine3, LOW); delay(60); break; } }
Source : Mini Christmas IoT Show!