カテゴリー: DIY

// 必要なライブラリのインクルード
#include  <wifi.h>
#include  <wire.h>
#include  <adafruit_gfx.h>
#include  <adafruit_ssd1306.h>
#include  <adafruit_ads1x15.h>

//ADS1115 ADS(0x48);
Adafruit_ADS1115 ads;

byte hdr, data_h, data_l, chksum;
String inputString = "";
 

// ピンの定義
#define wifyOn 4 // wify 接続OK
#define wifyOff 2 // wify 未接続
#define OLED 18 // OLDE 表示・非表示

//OLED
#define OLED_RESET     -1 
#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

// WiFi接続情報--固定アドレス用
const char* ssid = "***********";
const char* password = "***********";
const IPAddress ip(192, 168, 2, 30);
const IPAddress gateway(192, 168, 2, 2);
const IPAddress subnet(255, 255, 255, 0);
const IPAddress dns1(192, 168, 2, 2);


// セットアップ関数
void setup() {
  //入出力ピン設定
  pinMode(wifyOn, OUTPUT);
  pinMode(wifyOff, OUTPUT);
  pinMode(OLED,INPUT_PULLUP);
  
  digitalWrite(wifyOn, LOW);
  digitalWrite(wifyOff, HIGH);

  Serial.begin(115200); // シリアル通信の開始
  Serial2.begin(9600,SERIAL_8N1,16,17);
  ads.begin();

//OLED開始
  if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }

  display.display();
  delay(2000); // Pause for 2 seconds

  // Clear the buffer
  display.clearDisplay();

 //OLED初期設定
  display.setTextSize(2);             // Draw 2X-scale text
  display.setTextColor(SSD1306_WHITE);
  display.print(F("Wify set"));
  display.display(); 

 
  // WiFi接続
  if (!WiFi.config(ip,gateway,subnet,dns1)){
      Serial.println("Failed to configure!");
  }
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
      delay(500);
      Serial.print(".");
  }

  digitalWrite(wifyOn, HIGH);
  digitalWrite(wifyOff, LOW);

  display.clearDisplay();
  display.setCursor(0, 0);
  display.print(F("Wify con"));
  display.display();

}

// メインループ
void loop() {

 digitalWrite(wifyOn, HIGH);
  digitalWrite(wifyOff, LOW);
  
  ads.setGain(GAIN_TWOTHIRDS);
  
  int16_t adc0;
  float volts0;
 
  adc0 = ads.readADC_SingleEnded(0);
  volts0 = ads.computeVolts(adc0);
  
  Serial.print("AIN0: "); 
  Serial.print(adc0);
  Serial.print("  ");
  Serial.print(volts0);
  Serial.println("v");

  display.clearDisplay();
  display.setCursor(0, 0);
  display.println(adc0);
  display.print(volts0);
  display.print("v");
  display.display();

  delay(500);

  digitalWrite(wifyOn, LOW);
  digitalWrite(wifyOff, HIGH);
  
  delay(500);
}


 

 float measureDistance_2() {
  char m[50];
  int Sw;
  Serial2.write("S");
  delay(300); 
  if (Serial2.available())
  {
    hdr = (byte)Serial2.read();
    if (hdr == 255){
      data_h = (byte)Serial2.read();
      data_l = (byte)Serial2.read();
      chksum = (byte)Serial2.read();

      if (chksum == ((hdr + data_h + data_l)&0x00FF)){
          distance = data_h * 256 + data_l;//距離計算
          new_distance=distance/10;
          dtostrf(new_distance, 6, 1, m);//
          Serial.print(m);
          Serial.println(" cm");
          if(digitalRead(OLED)==HIGH){//OLED表示ONの時
            display.clearDisplay();
            display.setCursor(0, 0);
            display.println("rest= ");
            display.print(m);
            display.println(" cm");
            display.display();
          }       
      }
    }
  }
  delay(100); 
  return distance/10;//cmを返す
 
}