BlynkでLED目ん玉をコントロール！

いつのまにかBlynkがBLE対応してたので前回ダイソー版プラレールをBlynkでコントロールしてみたのですが、今回はBLE搭載マイコンAdafruit Feather 32u4 Bluefruit LEを使用してLED目ん玉をBlynkで制御してみます。

- - Blynk制御BLEトレインについてはこちら
    　https://homemadegarbage.com/blynk-ble-train01
  - LED目ん玉についてはこちら
    　https://homemadegarbage.com/neopixel-led-eyeball
    　hackstar.io記事
  - Adafruit Feather 32u4 Bluefruit LEに関する記事はこちら
    　https://homemadegarbage.com/bluefruit01

ブロック図

LEDテープNeopixelとBLE搭載マイコンAdafruit Feather 32u4 Bluefruit LEを使用して、スマホアプリBlynkでコントロール

Blynkライブラリ

最新ライブラリは以下にあります。
　https://github.com/blynkkk/blynk-library

今回はAdafruit Feather 32u4 Bluefruit LEを使うので

　[スケッチの例] -> [Blynk] -> [Boards_BLE]-> [

Adafruit_Feather_32u4_BLE]を参考にコード生成しました。

Blynk設定

新規プロジェクトを作成します。ハードウェアではAdafruit製品がまだないのでとりあえずArduino UNOを選択。
AUTH TOKENはArduinoコード生成時に使用しますので控えときます(もしくはメール送信します)。

ウィジェットとしてBLEとジョイスティックを配置します。

ジョイスティックの設定はこんな感じでヴァーチャルピンV1に２軸の数値を出力します。

Arduino IDE

[スケッチの例] -> [Blynk] -> [Boards_BLE]-> [Adafruit_Feather_32u4_BLE]を参考にコード生成しました。

#define BLYNK_PRINT Serial

#define BLYNK_USE_DIRECT_CONNECT

#include <BlynkSimpleSerialBLE.h>
#include <SPI.h>
#include <Adafruit_BLE.h>
#include <Adafruit_BluefruitLE_SPI.h>
#include <Adafruit_NeoPixel.h>

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "BlynkアプリのYourAuthTokenを入力";

// SHARED SPI SETTINGS (see adafruit webpages for details)
#define BLUEFRUIT_SPI_CS               8
#define BLUEFRUIT_SPI_IRQ              7
#define BLUEFRUIT_SPI_RST              4    // Optional but recommended, set to -1 if unused
#define BLUEFRUIT_VERBOSE_MODE         true

// Create ble instance, see pinouts above
Adafruit_BluefruitLE_SPI ble(BLUEFRUIT_SPI_CS, BLUEFRUIT_SPI_IRQ, BLUEFRUIT_SPI_RST);

#define PIN 6

Adafruit_NeoPixel led = Adafruit_NeoPixel(68, PIN, NEO_GRB + NEO_KHZ800);

int blackNum = 24;
int pupilNum = 12;

uint32_t color;
int brightness = 40;

int LR =0;

//Black eye L&R animation
int blackLED[15][24] = {{12,32,35,55,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},
                        {12,13,31,36,54,55,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},
                        {11,13,14,30,37,53,54,56,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},
                        {10,11,14,15,29,38,52,53,56,57,68,68,68,68,68,68,68,68,68,68,68,68,68,68},
                        { 9,10,11,12,15,16,28,33,34,39,51,52,55,56,57,58,68,68,68,68,68,68,68,68},
                        { 0, 8, 9,10,11,12,13,16,17,27,32,35,40,50,51,54,55,56,57,58,59,67,68,68},
                        { 0, 1, 7, 8, 9,10,13,14,17,18,26,31,36,41,49,50,53,54,57,58,59,60,66,67},
                        { 1, 2, 6, 7, 8, 9,14,15,18,19,25,30,37,42,48,49,52,53,58,59,60,61,65,66},
                        { 2, 3, 5, 6, 7, 8,15,16,19,20,24,29,38,43,47,48,51,52,59,60,61,62,64,65},
                        { 3, 4, 5, 6, 7,16,17,20,21,23,28,39,44,46,47,50,51,60,61,62,63,64,68,68},
                        { 4, 5, 6,17,18,21,22,27,40,45,46,49,50,61,62,63,68,68,68,68,68,68,68,68},
                        { 4, 5,18,19,26,41,48,49,62,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},
                        { 4,19,20,25,42,47,48,63,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},
                        {20,21,24,43,46,47,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},
                        {21,23,44,46,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68}};

//pupil L&R animation
int pupilLED[15][12] = {{33,34,68,68,68,68,68,68,68,68,68,68},
                        {32,33,34,35,68,68,68,68,68,68,68,68},
                        {12,31,32,33,34,35,36,55,68,68,68,68},
                        {12,13,30,31,32,33,34,35,36,37,54,55},
                        {13,14,29,30,31,32,35,36,37,38,53,54},
                        {14,15,28,29,30,31,36,37,38,39,52,53},
                        {15,16,27,28,29,30,37,38,39,40,51,52},
                        {16,17,26,27,28,29,38,39,40,41,50,51},
                        {17,18,25,26,27,28,39,40,41,42,49,50},
                        {18,19,24,25,26,27,40,41,42,43,48,49},
                        {19,20,23,24,25,26,41,42,43,44,47,48},
                        {20,21,22,23,24,25,42,43,44,45,46,47},
                        {21,22,23,24,43,44,45,46,68,68,68,68},
                        {22,23,44,45,68,68,68,68,68,68,68,68},
                        {22,45,68,68,68,68,68,68,68,68,68,68}};

//Blink animation
int eyelid = 0;
int eyelidNum[8] = {0,4,8,16,24,34,44,56};
int eyelidLED[56] = {64,65,66,67,58,59,60,61,56,57,62,63,49,50,51,52,47,48,53,54,38,39,40,41,46,55,36,37,42,43,26,27,28,29,35,44,24,25,30,31,15,16,17,18,34,45,23,32,13,14,19,20,6,7,8,9};

//Joystick Value
BLYNK_WRITE(V1) {
  int x = param[0].asInt();
  int y = param[1].asInt();

  Serial.print("x: ");
  Serial.print(x);
  Serial.print("  y: ");
  Serial.print(y);

  eyelid = map(y, 0, 128, 8, 0);
  if (eyelid > 8) {
    eyelid = 8;
  }
  if (eyelid < 0) {
    eyelid = 0;
  }
  Serial.print("  eyelid: ");
  Serial.print(eyelid);
 
  LR = map(x, 0, 255, 0, 14);
  if (LR > 14) {
    LR = 14;
  }
  if (LR < 0) {
    LR = 0;
  }
  Serial.print("  eyeLR: ");
  Serial.println(LR);


  if (eyelid != 8){
    //Pewter
    for(uint16_t i=0; i<led.numPixels(); i++) {
      led.setPixelColor(i, led.Color(66, 66, 66));
    }
    
    //Black eye
    for(uint16_t i=0; i<blackNum; i++) {
      led.setPixelColor(blackLED[LR][i], color);
    }
    
    //pupil
    for(uint16_t i=0; i<pupilNum; i++) {
      led.setPixelColor(pupilLED[LR][i], led.Color(0, 0, 66));
    }

    //eyelid
    for(int i=0; i < eyelidNum[eyelid]; i++) {
      led.setPixelColor(eyelidLED[i], 0);
    }
  } else if (eyelid == 8){
    led.clear();
  }
  led.show();
}


void setup() {
  Serial.begin(9600);

  Blynk.begin(auth, ble);
  ble.begin(BLUEFRUIT_VERBOSE_MODE);
  ble.factoryReset(); // Optional
  ble.setMode(BLUEFRUIT_MODE_DATA);

  led.begin();
  led.setBrightness(brightness); // Initial Brightness 40
  led.show(); // Initialize all pixels to 'off'
  color = led.Color(0, 177, 55); //pupil color
}

void loop() {
  Blynk.run();
}

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#define BLYNK_PRINT Serial

#define BLYNK_USE_DIRECT_CONNECT

#include <BlynkSimpleSerialBLE.h>

#include <SPI.h>

#include <Adafruit_BLE.h>

#include <Adafruit_BluefruitLE_SPI.h>

#include <Adafruit_NeoPixel.h>

// You should get Auth Token in the Blynk App.

// Go to the Project Settings (nut icon).

char auth[] = "BlynkアプリのYourAuthTokenを入力";

// SHARED SPI SETTINGS (see adafruit webpages for details)

#define BLUEFRUIT_SPI_CS 8

#define BLUEFRUIT_SPI_IRQ 7

#define BLUEFRUIT_SPI_RST 4 // Optional but recommended, set to -1 if unused

#define BLUEFRUIT_VERBOSE_MODE true

// Create ble instance, see pinouts above

Adafruit_BluefruitLE_SPI ble(BLUEFRUIT_SPI_CS, BLUEFRUIT_SPI_IRQ, BLUEFRUIT_SPI_RST);

#define PIN 6

Adafruit_NeoPixel led = Adafruit_NeoPixel(68, PIN, NEO_GRB + NEO_KHZ800);

int blackNum = 24;

int pupilNum = 12;

uint32_t color;

int brightness = 40;

int LR =0;

//Black eye L&R animation

int blackLED[15][24] = {{12,32,35,55,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},

{12,13,31,36,54,55,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},

{11,13,14,30,37,53,54,56,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},

{10,11,14,15,29,38,52,53,56,57,68,68,68,68,68,68,68,68,68,68,68,68,68,68},

{ 9,10,11,12,15,16,28,33,34,39,51,52,55,56,57,58,68,68,68,68,68,68,68,68},

{ 0, 8, 9,10,11,12,13,16,17,27,32,35,40,50,51,54,55,56,57,58,59,67,68,68},

{ 0, 1, 7, 8, 9,10,13,14,17,18,26,31,36,41,49,50,53,54,57,58,59,60,66,67},

{ 1, 2, 6, 7, 8, 9,14,15,18,19,25,30,37,42,48,49,52,53,58,59,60,61,65,66},

{ 2, 3, 5, 6, 7, 8,15,16,19,20,24,29,38,43,47,48,51,52,59,60,61,62,64,65},

{ 3, 4, 5, 6, 7,16,17,20,21,23,28,39,44,46,47,50,51,60,61,62,63,64,68,68},

{ 4, 5, 6,17,18,21,22,27,40,45,46,49,50,61,62,63,68,68,68,68,68,68,68,68},

{ 4, 5,18,19,26,41,48,49,62,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},

{ 4,19,20,25,42,47,48,63,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},

{20,21,24,43,46,47,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},

{21,23,44,46,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68}};

//pupil L&R animation

int pupilLED[15][12] = {{33,34,68,68,68,68,68,68,68,68,68,68},

{32,33,34,35,68,68,68,68,68,68,68,68},

{12,31,32,33,34,35,36,55,68,68,68,68},

{12,13,30,31,32,33,34,35,36,37,54,55},

{13,14,29,30,31,32,35,36,37,38,53,54},

{14,15,28,29,30,31,36,37,38,39,52,53},

{15,16,27,28,29,30,37,38,39,40,51,52},

{16,17,26,27,28,29,38,39,40,41,50,51},

{17,18,25,26,27,28,39,40,41,42,49,50},

{18,19,24,25,26,27,40,41,42,43,48,49},

{19,20,23,24,25,26,41,42,43,44,47,48},

{20,21,22,23,24,25,42,43,44,45,46,47},

{21,22,23,24,43,44,45,46,68,68,68,68},

{22,23,44,45,68,68,68,68,68,68,68,68},

{22,45,68,68,68,68,68,68,68,68,68,68}};

//Blink animation

int eyelid = 0;

int eyelidNum[8] = {0,4,8,16,24,34,44,56};

int eyelidLED[56] = {64,65,66,67,58,59,60,61,56,57,62,63,49,50,51,52,47,48,53,54,38,39,40,41,46,55,36,37,42,43,26,27,28,29,35,44,24,25,30,31,15,16,17,18,34,45,23,32,13,14,19,20,6,7,8,9};

//Joystick Value

BLYNK_WRITE(V1) {

int x = param[0].asInt();

int y = param[1].asInt();

Serial.print("x: ");

Serial.print(x);

Serial.print(" y: ");

Serial.print(y);

eyelid = map(y, 0, 128, 8, 0);

if (eyelid > 8) {

eyelid = 8;

}

if (eyelid < 0) {

eyelid = 0;

}

Serial.print(" eyelid: ");

Serial.print(eyelid);

LR = map(x, 0, 255, 0, 14);

if (LR > 14) {

LR = 14;

}

if (LR < 0) {

LR = 0;

}

Serial.print(" eyeLR: ");

Serial.println(LR);

if (eyelid != 8){

//Pewter

for(uint16_t i=0; i<led.numPixels(); i++) {

led.setPixelColor(i, led.Color(66, 66, 66));

}

//Black eye

for(uint16_t i=0; i<blackNum; i++) {

led.setPixelColor(blackLED[LR][i], color);

}

//pupil

for(uint16_t i=0; i<pupilNum; i++) {

led.setPixelColor(pupilLED[LR][i], led.Color(0, 0, 66));

}

//eyelid

for(int i=0; i < eyelidNum[eyelid]; i++) {

led.setPixelColor(eyelidLED[i], 0);

}

} else if (eyelid == 8){

led.clear();

}

led.show();

}

void setup() {

Serial.begin(9600);

Blynk.begin(auth, ble);

ble.begin(BLUEFRUIT_VERBOSE_MODE);

ble.factoryReset(); // Optional

ble.setMode(BLUEFRUIT_MODE_DATA);

led.begin();

led.setBrightness(brightness); // Initial Brightness 40

led.show(); // Initialize all pixels to 'off'

color = led.Color(0, 177, 55); //pupil color

}

void loop() {

Blynk.run();

}

Blynk BLE接続

BlynkプロジェクトのBLEウェジットをクリックして設定します。

“Connect BLE device”をクリックして “Adafruit Bluefruit LE”が表示されたらOKをクリックして接続する。

動作

これまた簡単にできた！

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