main.cpp

00001 /*************************************************************
00002   Download latest Blynk library here:
00003     https://github.com/blynkkk/blynk-library/releases/latest
00004   Blynk is a platform with iOS and Android apps to control
00005   Arduino, Raspberry Pi and the likes over the Internet.
00006   You can easily build graphic interfaces for all your
00007   projects by simply dragging and dropping widgets.
00008     Downloads, docs, tutorials: http://www.blynk.cc
00009     Sketch generator:           http://examples.blynk.cc
00010     Blynk community:            http://community.blynk.cc
00011     Social networks:            http://www.fb.com/blynkapp
00012                                 http://twitter.com/blynk_app
00013   Blynk library is licensed under MIT license
00014   This example code is in public domain.
00015  *************************************************************
00016   This example shows how to use Arduino.org Ethernet Shield 2 (W5500)
00017   to connect your project to Blynk.
00018   NOTE: You may have to install Arduino.ORG IDE to get it working:
00019           http://www.arduino.org/software
00020         Pins 10, 11, 12 and 13 are reserved for Ethernet module.
00021         DON'T use them in your sketch directly!
00022   Feel free to apply it to any other example. It's simple!
00023  *************************************************************/
00024 
00025 /* Comment this out to disable prints and save space */
00026 #define BLYNK_PRINT Serial
00027 #define WS2812_BUF 8
00028 
00029 #include "WS2812.h"
00030 #include "mbed.h"
00031 #include <SPI.h>
00032 #include "EthernetInterface.h"
00033 #include <BlynkSimpleEthernet2.h>
00034 
00035 WS2812 ws(D2, WS2812_BUF, 0, 1, 1, 0);
00036 
00037 void getBuf(int buf[], int NUM, uint8_t r, uint8_t g, uint8_t b);
00038 uint32_t Wheel(uint8_t WheelPos);
00039 
00040 // You should get Auth Token in the Blynk App.
00041 // Go to the Project Settings (nut icon).
00042 char auth[] = "5f3177d2555a42188845f99ebc0d76ad";
00043 
00044 int colorbuf[WS2812_BUF];
00045 int offbuf[WS2812_BUF];
00046 
00047 BLYNK_WRITE(V0)
00048 {
00049     int d = param.asInt();
00050     printf("on/off button value : %d\r\n", d);
00051     if(d==0) ws.write(colorbuf);
00052     else ws.write(offbuf);
00053 }
00054 
00055 BLYNK_WRITE(V1)
00056 {
00057     int d = param.asInt();
00058     printf("brightness value : %d\r\n", d);
00059     ws.useII(WS2812::GLOBAL);
00060     ws.setII(d);
00061     ws.write(colorbuf);
00062 }
00063 
00064 BLYNK_WRITE(V2)
00065 {
00066     int r = param[0].asInt();
00067     int g = param[1].asInt();
00068     int b = param[2].asInt();
00069     printf("rgb value : %d %d %d\r\n", r, g, b);
00070     getBuf(colorbuf, WS2812_BUF, (uint8_t)r, (uint8_t)g, (uint8_t)b);
00071     ws.write(colorbuf);
00072 }
00073 
00074 BLYNK_WRITE(V3)
00075 {
00076     int d = param.asInt();
00077     printf("rainbow button value : %d\r\n", d);
00078     if(d){
00079          for(int j=0; j<256*5; j++) { 
00080             for(int i=0; i< WS2812_BUF; i++) {
00081                 colorbuf[i]=Wheel(((i * 256 / WS2812_BUF) + j) & 255);
00082             }
00083             ws.write(colorbuf);
00084             wait_ms(20);
00085         }
00086     }
00087 }
00088 
00089 
00090 int main(void) {
00091     uint8_t mac_addr[6] = {0x00, 0x08, 0xDC, 0xff, 0xff, 0x48};   
00092     printf("Hello\r\n");
00093     getBuf(offbuf, WS2812_BUF, 0x00, 0x00, 0x00);
00094     getBuf(colorbuf, WS2812_BUF, 0xff, 0xff, 0xff);
00095     
00096     Blynk.begin(auth, "blynk-cloud.com", 8442, mac_addr);
00097     printf("Blynk init!\r\n");
00098     while(1){
00099         Blynk.run();
00100     }    
00101 }
00102 
00103 void getBuf(int buf[], int NUM, uint8_t r, uint8_t g, uint8_t b){
00104     for(int i=0; i<NUM; i++) {
00105         buf[i]=0;
00106         buf[i] |= (r<<16 & 0xff0000);
00107         buf[i] |= (g<<8 & 0x00ff00);
00108         buf[i] |= (b & 0x0000ff);
00109     }
00110 }
00111 
00112 //255가지의 색을 나타내는 함수
00113 uint32_t Wheel(uint8_t WheelPos) {
00114   uint32_t data;
00115   if(WheelPos < 85) {
00116    data=(((WheelPos * 3)<<16) & 0xff0000) | (((255 - WheelPos * 3)<<8) & 0x00ff00 ) | (0 & 0x0000ff);
00117   }
00118   
00119   else if(WheelPos < 170) {
00120    WheelPos -= 85;
00121    data= (((255-WheelPos * 3)<<16) & 0xff0000)| ((0<<8) & 0x00ff00 ) | ((WheelPos * 3) & 0x0000ff);
00122   }
00123   
00124   else {
00125    WheelPos -= 170;
00126     data= ((0<<16) & 0xff0000)| (((WheelPos * 3)<<8) & 0x00ff00 ) | ((255-WheelPos * 3) & 0x0000ff);
00127   }
00128   return data;
00129 }