2016年7月 – 計測・解析ラボ

テクノ手芸 – 音に反応するネコ

声をかけると目が光りシッポをブルブルさせるフェルトのネコです。

R0014918s

R0014916s

主な部品
Arduino Nano (5V 16MHz)互換ボード
 SPW2430搭載シリコンMEMSマイクモジュール
 円盤型　振動モーター（２個入)
導電糸

配線
マイクDC出力：A0
LED+：D5, D9
LED-：D12 (GND) 導電糸引き回し軽減のため
振動モーター：D3

スケッチ(Mic_DelayedReaction-nano12f)

/*
  Sound sensing and delayed reaction
  using SPW2430 mic module
*/

const int mic_DC = A0;
const int LED_GND = 12;
const int EyeRight = 9; // Analog output pin that the LED is attached to
const int EyeLeft = 5; // Analog output pin that the LED is attached to
const int Tail =3;

const int dataSize = 100, timeShiftSize = 50, historySize= 30;
int data[dataSize], timeShift[timeShiftSize], vibHistory[historySize];
int TimePosSound,TimePosLED,TimePosVib;

const int ShiftLED=40, ShiftVib=1, ThVib=100;
const int MicCoeff=180, ThSound=30, ThLED=90;
boolean vibQuiet;
int ledout, soundValue, vibration;
float loudness;
int t_count=0;

void setup() {
  analogReference(INTERNAL);//0-1.1V
  pinMode(LED_GND, OUTPUT);
  digitalWrite(LED_GND,LOW);
  inittimeShift();
  initvibHistory();
  Serial.begin(9600);
}

void loop() {
  TimePosSound=t_count % timeShiftSize;
  TimePosLED=(t_count + ShiftLED) % timeShiftSize;
  TimePosVib=(t_count + ShiftVib ) % timeShiftSize;
  
  readMic();
  loudness = proc_sound()*MicCoeff;
  soundValue = constrain ((int)loudness,0,255);
  vibQuiet=vib_quiet(vibration);
  
  timeShift[TimePosSound] = 0;
  /*
  Serial.print(soundValue);
  Serial.print("  ");
  Serial.print(vibration);
  Serial.print("  ");
  Serial.println(vibQuiet);
  */
  
  if((soundValue > ThSound) && vibQuiet){
    timeShift[TimePosSound] = soundValue;}
  
  ledout =0;
  if (timeShift[TimePosLED] > ThLED){
    ledout =timeShift[TimePosLED];}
    
  vibration = 0;
  if (timeShift[TimePosVib] > ThVib){
    vibration = timeShift[TimePosVib];}

  analogWrite(EyeRight, ledout);
  analogWrite(EyeLeft, ledout);
  analogWrite(Tail, vibration);
  t_count++;
}

void readMic() {
  for (int i = 0; i < dataSize; i++) {
    data[i] = kill_noise();
  }
}

int kill_noise(){
  int s0,s1,s2;
  s0=analogRead(mic_DC);
  s1=analogRead(mic_DC);
  s2=analogRead(mic_DC);
  if((s1<=s0 && s0 <= s2)||(s2<=s0 && s0 <= s1)) return s0;
  if((s0<=s1 && s1 <= s2)||(s2<=s1 && s1 <= s0)) return s1;
  return s2;
}


float proc_sound() {
  float mean=0,std=0;
  for(int i = 0; i < dataSize; i++) mean = mean + (float)data[i];
  mean = mean / dataSize;
  for(int i = 0; i < dataSize; i++) std = std + sq((float)data[i]-mean);
  std = sqrt(std/(dataSize-1));
  return std;
}


boolean vib_quiet(int vib){
  boolean Quiet=true;
  for(int i=historySize-1;i>0; i--){
    vibHistory[i]=vibHistory[i-1];
  }
  vibHistory[0]=vib;
  for(int i=0;i<historySize; i++){
    if(vibHistory[i]>ThVib){
      Quiet=false;
    }
  }
  return Quiet;
}

void inittimeShift() {
  for (int i = 0; i < timeShiftSize; i++) {
    timeShift[i]=0;
  }
}

void initvibHistory() {
  for (int i = 0; i < historySize; i++) {
    vibHistory[i]=0;
  }
}

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Sound sensing and delayed reaction

using SPW2430 mic module

const int mic_DC = A0;

const int LED_GND = 12;

const int EyeRight = 9; // Analog output pin that the LED is attached to

const int EyeLeft = 5; // Analog output pin that the LED is attached to

const int Tail =3;

const int dataSize = 100, timeShiftSize = 50, historySize= 30;

int data[dataSize], timeShift[timeShiftSize], vibHistory[historySize];

int TimePosSound,TimePosLED,TimePosVib;

const int ShiftLED=40, ShiftVib=1, ThVib=100;

const int MicCoeff=180, ThSound=30, ThLED=90;

boolean vibQuiet;

int ledout, soundValue, vibration;

float loudness;

int t_count=0;

void setup() {

analogReference(INTERNAL);//0-1.1V

pinMode(LED_GND, OUTPUT);

digitalWrite(LED_GND,LOW);

inittimeShift();

initvibHistory();

Serial.begin(9600);

}

void loop() {

TimePosSound=t_count % timeShiftSize;

TimePosLED=(t_count + ShiftLED) % timeShiftSize;

TimePosVib=(t_count + ShiftVib ) % timeShiftSize;

readMic();

loudness = proc_sound()*MicCoeff;

soundValue = constrain ((int)loudness,0,255);

vibQuiet=vib_quiet(vibration);

timeShift[TimePosSound] = 0;

Serial.print(soundValue);

Serial.print(" ");

Serial.print(vibration);

Serial.print(" ");

Serial.println(vibQuiet);

if((soundValue > ThSound) && vibQuiet){

timeShift[TimePosSound] = soundValue;}

ledout =0;

if (timeShift[TimePosLED] > ThLED){

ledout =timeShift[TimePosLED];}

vibration = 0;

if (timeShift[TimePosVib] > ThVib){

vibration = timeShift[TimePosVib];}

analogWrite(EyeRight, ledout);

analogWrite(EyeLeft, ledout);

analogWrite(Tail, vibration);

t_count++;

}

void readMic() {

for (int i = 0; i < dataSize; i++) {

data[i] = kill_noise();

}

int kill_noise(){

int s0,s1,s2;

s0=analogRead(mic_DC);

s1=analogRead(mic_DC);

s2=analogRead(mic_DC);

if((s1<=s0 && s0 <= s2)||(s2<=s0 && s0 <= s1)) return s0;

if((s0<=s1 && s1 <= s2)||(s2<=s1 && s1 <= s0)) return s1;

return s2;

}

float proc_sound() {

float mean=0,std=0;

for(int i = 0; i < dataSize; i++) mean = mean + (float)data[i];

mean = mean / dataSize;

for(int i = 0; i < dataSize; i++) std = std + sq((float)data[i]-mean);

std = sqrt(std/(dataSize-1));

return std;

}

boolean vib_quiet(int vib){

boolean Quiet=true;

for(int i=historySize-1;i>0; i--){

vibHistory[i]=vibHistory[i-1];

}

vibHistory[0]=vib;

for(int i=0;i<historySize; i++){

if(vibHistory[i]>ThVib){

Quiet=false;

}

return Quiet;

}

void inittimeShift() {

for (int i = 0; i < timeShiftSize; i++) {

timeShift[i]=0;

}

void initvibHistory() {

for (int i = 0; i < historySize; i++) {

vibHistory[i]=0;

}

ノイズ除去のために3回測定して中央値をデータとします。そのデータを要素100のdata[]に格納します。100個のデータから標準偏差を計算して音の大きさとします。

音に対するLEDと振動モーターの反応は、音を受けて間を置いてLEDが光り、さらに遅れて振動モーターが動作するようにしています。音の大きさを要素50個のtimeShift[]にリングバッファー状に格納します。LEDと振動モーターのデータは指標をシフトさせて読み込みます。

振動モーターが振動した音をマイクが拾って反応が止まらなくなりますので、要素30個のvibHistory[]に振動モーターへの出力を記録して振動モーターの動作中は音を格納しないようにします。

ESP8266気象ユニット(1) – 温湿度・気圧センサー

温湿度・気圧センサーモジュールBME280から温度、湿度、気圧データを取得します。

使用する主なもの
ESP-WROOM-02ピッチ変換済みモジュール《フル版》
ＢＭＥ２８０使用　温湿度・気圧センサモジュールキット
 ＦＴ２３１Ｘ　ＵＳＢシリアル変換モジュール

接続
ESP-WROOM-02 ———- 接続先
3V3 ———- 3.3V電源
EN ———- Pull UP
IO14 ———- NC
IO12 ———- NC
IO13 ———- LED+ (LED-は100Ω経由GND)
IO15 ———- Pull DOWN
IO2 ———- NC
IO0 ———- DTR# (FT231X)

GND ———- GND
IO16 ———- NC
TOUT ———- NC
RST ———- 書き込み時 RTS# (FT231X)/実行時 NC
IO5 ———- SCK (BME280)
TXD ———- RXD (FT231X)
RXD ———- TXD (FT231X)
IO4 ———- SDI (BME280)

電源
3端子レギュレーター (NJU723F33 3.3V 500mA)
Pin 1 ———-3.3V出力 (GNDと0.1μFセラミックコンデンサ)
Pin 2 ———-外部電源入力(バッテリーなど) (GNDと0.1μFセラミックコンデンサ)
Pin 3 ———-GND

Arduino IDEの設定
スイッチサイエンスの記事「ESP-WROOM-02開発ボードをArduino IDEで開発する方法」参照

スケッチの書き込みと実行
書き込み時はRSTにRTS# (FT231X)を接続、実行時はRSTはNCで電源OFF-ON

R0015091s

出力例
Temp=28.64
Humidity=55.35
Pressure=989.70

#include <BME280_MOD-1022.h>
// BME280 MOD-1022 weather multi-sensor Arduino demo
// Written originally by Embedded Adventures
//www.embeddedadventures.com

#include <Wire.h>

int LED =13;
float temp, humidity,  pressure;

void setup() {
  pinMode(LED, OUTPUT);
  Wire.begin();
  Serial.begin(115200);
  setBME280();
}


void loop() {
  digitalWrite(LED, HIGH);
  BME280.readMeasurements();
  while (BME280.isMeasuring()) {
    delay(1);
  }
  temp=BME280.getTemperature();
  humidity=BME280.getHumidity();
  pressure=BME280.getPressure();
  
  Serial.print("Temp=");
  Serial.println(temp);  // must get temp first
  Serial.print("Humidity=");
  Serial.println(humidity);
  Serial.print("Pressure=");
  Serial.println(pressure);
  
  digitalWrite(LED, LOW);

  delay(10000);
}

void setBME280(){
  BME280.readCompensationParams();
  BME280.writeFilterCoefficient(fc_off);
  BME280.writeOversamplingPressure(os1x);  // 1x over sampling (ie, just one sample)
  BME280.writeOversamplingTemperature(os1x);
  BME280.writeOversamplingHumidity(os1x);
  BME280.writeStandbyTime(tsb_1000ms);
  BME280.writeMode(smForced);
}

#include <BME280_MOD-1022.h>

// BME280 MOD-1022 weather multi-sensor Arduino demo

// Written originally by Embedded Adventures

//www.embeddedadventures.com

#include <Wire.h>

int LED =13;

float temp, humidity, pressure;

void setup() {

pinMode(LED, OUTPUT);

Wire.begin();

Serial.begin(115200);

setBME280();

}

void loop() {

digitalWrite(LED, HIGH);

BME280.readMeasurements();

while (BME280.isMeasuring()) {

delay(1);

}

temp=BME280.getTemperature();

humidity=BME280.getHumidity();

pressure=BME280.getPressure();

Serial.print("Temp=");

Serial.println(temp); // must get temp first

Serial.print("Humidity=");

Serial.println(humidity);

Serial.print("Pressure=");

Serial.println(pressure);

digitalWrite(LED, LOW);

delay(10000);

}

void setBME280(){

BME280.readCompensationParams();

BME280.writeFilterCoefficient(fc_off);

BME280.writeOversamplingPressure(os1x); // 1x over sampling (ie, just one sample)

BME280.writeOversamplingTemperature(os1x);

BME280.writeOversamplingHumidity(os1x);

BME280.writeStandbyTime(tsb_1000ms);

BME280.writeMode(smForced);

}

WiFiサウンドセンサー

ヘッドフォンをかけていたり、大きめの音で音楽を聴いていると玄関のお客さんに気がつかないことがありますね。WiFiサウンドセンサーは離れた場所の物音や振動をマイクで検知して、LEDの光で知らせてくれます。

R0014992s
R0015003s

主な部品
「Board1 ver.1.0」ESP-WROOM-02搭載モジュール：２個
マイコン内蔵ＲＧＢ　５ｍｍＬＥＤ：２個
SPW2430搭載シリコンMEMSマイクモジュール：１個

受信側のスケッチ

#include <ESP8266WiFi.h>
#include <WiFiUdp.h>
#include <Adafruit_NeoPixel.h>

#define PIN            13
#define NUMPIXELS      1
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

WiFiUDP Udp;
char packetBuffer[255];
unsigned int localPort = 9999;
const char *ssid = "ListenToMe"; 
const char *password = "Hello0101";

IPAddress ipServer(192, 168, 12, 1); 
IPAddress ipClient(192, 168, 12, 3);
IPAddress Subnet(255, 255, 255, 0);
const int LED = 16;
int glow=0;
int glowTimes=0;

void setup() {
  Serial.begin(115200);
  Serial.println("setup");
  WiFi.begin(ssid, password);
  Serial.println("wifi begin");
  WiFi.mode(WIFI_STA); // STA important !!!
  WiFi.config(ipClient, ipServer, Subnet);
  Udp.begin(localPort);
  delay(200);
  pixels.begin();
}

void loop() {
  int data;
  int packetSize = Udp.parsePacket();
  if (packetSize) {
    int len = Udp.read(packetBuffer, 255);
    if (len > 0) {
      glowTimes=0;
      packetBuffer[len-1] = 0;
      data=atoi(packetBuffer);
      glow=data;
    }
  }
  if(glowTimes<40){
     glowTimes++;
     }
  else{
    glow=0;
  }
  if(glow==0) pixels.setPixelColor(0, pixels.Color(12,0,0));
  else pixels.setPixelColor(0, pixels.Color(0,glow,0));
  pixels.show();
  analogWrite(LED, glow);
  Serial.println(glow);
  delay(50);
}

#include <ESP8266WiFi.h>

#include <WiFiUdp.h>

#include <Adafruit_NeoPixel.h>

#define PIN 13

#define NUMPIXELS 1

Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

WiFiUDP Udp;

char packetBuffer[255];

unsigned int localPort = 9999;

const char *ssid = "ListenToMe";

const char *password = "Hello0101";

IPAddress ipServer(192, 168, 12, 1);

IPAddress ipClient(192, 168, 12, 3);

IPAddress Subnet(255, 255, 255, 0);

const int LED = 16;

int glow=0;

int glowTimes=0;

void setup() {

Serial.begin(115200);

Serial.println("setup");

WiFi.begin(ssid, password);

Serial.println("wifi begin");

WiFi.mode(WIFI_STA); // STA important !!!

WiFi.config(ipClient, ipServer, Subnet);

Udp.begin(localPort);

delay(200);

pixels.begin();

}

void loop() {

int data;

int packetSize = Udp.parsePacket();

if (packetSize) {

int len = Udp.read(packetBuffer, 255);

if (len > 0) {

glowTimes=0;

packetBuffer[len-1] = 0;

data=atoi(packetBuffer);

glow=data;

}

if(glowTimes<40){

glowTimes++;

}

else{

glow=0;

}

if(glow==0) pixels.setPixelColor(0, pixels.Color(12,0,0));

else pixels.setPixelColor(0, pixels.Color(0,glow,0));

pixels.show();

analogWrite(LED, glow);

Serial.println(glow);

delay(50);

}

送信側のスケッチ

#include <ESP8266WiFi.h>
#include <WiFiUdp.h>
extern "C" {
#include "user_interface.h"
}

#include <Adafruit_NeoPixel.h>

#define PIN            13
#define NUMPIXELS      1

Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

WiFiUDP Udp;
char packetBuffer[128];
unsigned int localPort = 9999;
const char *ssid = "ListenToMe"; 
const char *password = "Hello0101";

IPAddress ipServer(192,168,12,1);
IPAddress ipGateway(0,0,0,0);
IPAddress Subnet(255,255,255,0);
IPAddress ipBroadcast(192,168,12,255);

const int LED = 16;

const int arraySize = 225; //about 75msec duration for 0.11msec interval
int data[arraySize];
float loudness=0;
int soundValue;



void setup() {
  Serial.begin(115200);
  WiFi.softAPConfig(ipServer, ipGateway, Subnet);
  WiFi.softAP(ssid, password);
  Udp.begin(localPort);
  pixels.begin();
  }

void loop() {
  readMic();//225data:75msec
  loudness = proc_sound()*200;
  soundValue = constrain ((int)loudness,0,255);
  Serial.println(soundValue);
  if(soundValue > 100){
    analogWrite(LED, soundValue);
    pixels.setPixelColor(0, pixels.Color(0,soundValue,0));pixels.show();
    sendUDP(soundValue);
  }
  analogWrite(LED, 0);
  pixels.setPixelColor(0, pixels.Color(12,0,0));pixels.show();
}

void sendUDP(int data){
  //int data;
  Udp.beginPacket(ipBroadcast,9999);
  char sbuf[128];
  unsigned long testID = millis();//sampleData
  //sprintf(sbuf, "%lu", testID);
  sprintf(sbuf, "%d", data);
  Udp.write(sbuf);
  Udp.write("\r\n");
  Udp.endPacket();
  //Serial.print("S : ");Serial.println(sbuf);
  delay(50);//100~OK,50NG 
}


//********MicSNR**********
void readMic() {
  for (int i = 0; i < arraySize; i++) {
    //data[i] = system_adc_read();
    data[i] = kill_noise();
  }
}

int kill_noise(){
  int s0,s1,s2,smin=0,smax=1023;
  s0=system_adc_read();
  s1=system_adc_read();
  s2=system_adc_read();
  if(s0==s1) return s0;
  if(s1==s2) return s1;
  if(s2==s0) return s2;
  if (s0<s1) smin = s0; else smin = s1;
  if (s2<smin) smin = s2;
  if (s0>s1) smax = s0; else smax = s1;
  if (s2>smax) smax = s2;
  if(s0>smin && s0<smax) return s0;
  if(s1>smin && s1<smax) return s1;
  if(s2>smin && s2<smax) return s2;
}


float proc_sound() {   //global variable:data[], offset
  //float loudness = 0;
  //float offset_cnd = 0;
  int soundMin=1023,soundMax=0;
  float mean=0,std=0;
  for(int i = 0; i < arraySize; i++) mean = mean + (float)data[i];
  mean = mean / arraySize;
  
  for(int i = 0; i < arraySize; i++) std = std + sq((float)data[i]-mean);
  std = sqrt(std/(arraySize-1));
  
  for (int i = 0; i < arraySize; i++) {
    if(data[i]>soundMax) soundMax=data[i];
    if(data[i]<soundMin) soundMin=data[i];
  }
  /*
  Serial.print("mean : ");Serial.print(mean);
  Serial.print("   /std : ");Serial.print(std);
  Serial.print("   /Max : ");Serial.print(soundMax);
  Serial.print("   /Min : ");Serial.print(soundMin);
  Serial.print("   /Max-Min : ");Serial.println(soundMax-soundMin);
  */
  delay(50);
  return std;
}

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#include <ESP8266WiFi.h>

#include <WiFiUdp.h>

extern "C" {

#include "user_interface.h"

}

#include <Adafruit_NeoPixel.h>

#define PIN 13

#define NUMPIXELS 1

Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

WiFiUDP Udp;

char packetBuffer[128];

unsigned int localPort = 9999;

const char *ssid = "ListenToMe";

const char *password = "Hello0101";

IPAddress ipServer(192,168,12,1);

IPAddress ipGateway(0,0,0,0);

IPAddress Subnet(255,255,255,0);

IPAddress ipBroadcast(192,168,12,255);

const int LED = 16;

const int arraySize = 225; //about 75msec duration for 0.11msec interval

int data[arraySize];

float loudness=0;

int soundValue;

void setup() {

Serial.begin(115200);

WiFi.softAPConfig(ipServer, ipGateway, Subnet);

WiFi.softAP(ssid, password);

Udp.begin(localPort);

pixels.begin();

}

void loop() {

readMic();//225data:75msec

loudness = proc_sound()*200;

soundValue = constrain ((int)loudness,0,255);

Serial.println(soundValue);

if(soundValue > 100){

analogWrite(LED, soundValue);

pixels.setPixelColor(0, pixels.Color(0,soundValue,0));pixels.show();

sendUDP(soundValue);

}

analogWrite(LED, 0);

pixels.setPixelColor(0, pixels.Color(12,0,0));pixels.show();

}

void sendUDP(int data){

//int data;

Udp.beginPacket(ipBroadcast,9999);

char sbuf[128];

unsigned long testID = millis();//sampleData

//sprintf(sbuf, "%lu", testID);

sprintf(sbuf, "%d", data);

Udp.write(sbuf);

Udp.write("\r\n");

Udp.endPacket();

//Serial.print("S : ");Serial.println(sbuf);

delay(50);//100~OK,50NG

}

//********MicSNR**********

void readMic() {

for (int i = 0; i < arraySize; i++) {

//data[i] = system_adc_read();

data[i] = kill_noise();

}

int kill_noise(){

int s0,s1,s2,smin=0,smax=1023;

s0=system_adc_read();

s1=system_adc_read();

s2=system_adc_read();

if(s0==s1) return s0;

if(s1==s2) return s1;

if(s2==s0) return s2;

if (s0<s1) smin = s0; else smin = s1;

if (s2<smin) smin = s2;

if (s0>s1) smax = s0; else smax = s1;

if (s2>smax) smax = s2;

if(s0>smin && s0<smax) return s0;

if(s1>smin && s1<smax) return s1;

if(s2>smin && s2<smax) return s2;

}

float proc_sound() { //global variable:data[], offset

//float loudness = 0;

//float offset_cnd = 0;

int soundMin=1023,soundMax=0;

float mean=0,std=0;

for(int i = 0; i < arraySize; i++) mean = mean + (float)data[i];

mean = mean / arraySize;

for(int i = 0; i < arraySize; i++) std = std + sq((float)data[i]-mean);

std = sqrt(std/(arraySize-1));

for (int i = 0; i < arraySize; i++) {

if(data[i]>soundMax) soundMax=data[i];

if(data[i]<soundMin) soundMin=data[i];

}

Serial.print("mean : ");Serial.print(mean);

Serial.print(" /std : ");Serial.print(std);

Serial.print(" /Max : ");Serial.print(soundMax);

Serial.print(" /Min : ");Serial.print(soundMin);

Serial.print(" /Max-Min : ");Serial.println(soundMax-soundMin);

delay(50);

return std;

}

hello

test hello

Hello world!

WordPress へようこそ。これは最初の投稿です。編集もしくは削除してブログを始めてください !