自己的喇叭自己做

一直想要有一台自製的藍芽喇叭，在家搞了一天，終於成功了，效果也非常的棒

所需零件:

(1)藍芽晶片: BK8000L

(2)功率放大器:  Yamaha YDA-138

下面是製作過程，看圖說故事不多說廢話

用ESP8266(ESP-01)上傳溫濕度資料到ThingSpeak

之前有利用Arduino UNO + ESP8266 做過同樣的功能，但其實ESP8266是很強悍的晶片，能完全取代Arduino UNO的功能，小小的一片晶片不但體積縮小，也比較省電，接下來就看圖說故事，不多作解釋

<只需要esp01 就可以運作，不再需要Arduino的板子>

<USB to FTDI只是為了燒錄程式到ESP01, 燒錄成功後可以拆下來，記得燒錄時GPIO 0 必須接到GND>

<在Arduino IDE ，開發板記得選ESP8266，序列阜也要選FTDI的那個 port>

<都沒問題的話，從 ThingSpeak就可以看到上傳的資料>

Assembly List

Label	Part Type	Properties
DHT1	DHT11 Humitidy and Temperature Sensor
LED1	Red (633nm) LED	套件 1206 [SMD]; 顏色 Red (633nm)
R1	220Ω Resistor	接腳間隔 400 mil; 套件 THT; bands 4; tolerance ±5%; 電阻 220Ω
U1	ESP8266 WiFi Module	variant variant 1; part number ESP8266
元件1	FTDI Basic Programmer	類型 Basic; 電壓 5V

程式碼

#include "ESP8266WiFi.h"

#include <dht11.h>

dht11 DHT11;

#define LED 0 

const char* ssid = "ssid";

const char* password = "wifipassword";

const byte dataPin = 2;

const char* host = "api.thingspeak.com";

void setup() {

  // put your setup code here, to run once:

  pinMode(0,OUTPUT);

  Serial.begin(115200);

  

  WiFi.begin(ssid,password);

  

  while (WiFi.status() != WL_CONNECTED) {

    

    delay(500);

    Serial.print(".");

  }

  digitalWrite(LED,HIGH);

  Serial.println("");

  Serial.println("WiFi connected");

  Serial.println(WiFi.localIP());

 

}

void loop() {

  int chk = DHT11.read(dataPin);

  

  // put your main code here, to run repeatedly:

  Serial.print("Connecting to  " );

  Serial.println(host);

  // usage WiFiClient

  WiFiClient client;

  const int httpPort = 80;

  if (!client.connect(host, httpPort)) {

    Serial.println("connection fialed");

    return;

  }

  client.print(String("GET /") + "update?api_key=thingspeakapikey=" + String(DHT11.temperature) + "&field2=" + String(DHT11.humidity) + "\r\n\r\n");

  Serial.println("溫度:"+String(DHT11.temperature)+" ===  "+"濕度: "+String(DHT11.humidity));

  

  

  delay(100);

  while (client.available()) {

    String line = client.readStringUntil('\r');

    Serial.print(line);

    for (int i=1 ; i<12; i++) {

      digitalWrite(LED,HIGH);

      delay(300);

      digitalWrite(LED,LOW);

      delay(300);

      digitalWrite(LED,HIGH);

    }

  }

  Serial.println();

  Serial.println("closing connection");

  delay(300000);

}

Arduino + DS3231 可調整時間的電子鐘

Assembly List

Label	Part Type	Properties
Grove1	Grove 4 Digit Display	大小 1x1; interface digital; variant variant 4
R2	10kΩ Resistor	電阻 10kΩ; 套件 THT; tolerance ±5%; bands 4; 接腳間隔 400 mil
R3	10kΩ Resistor	電阻 10kΩ; 套件 THT; tolerance ±5%; bands 4; 接腳間隔 400 mil
S1	Momentary Switch	套件 ksa_sealed_tac_switch; variant ksa_sealed
S2	Momentary Switch	套件 ksa_sealed_tac_switch; variant ksa_sealed
ZS-042 RTC1	ZS-042 RTC Module	chip DS3231; variant variant 4
元件1	Arduino Nano (Rev3.0)	類型 Arduino Nano (3.0)

程式碼

#include <TimerOne.h>
#include "TM1637.h"
#include <Wire.h>
#include "RTClib.h"

#define CLK 8//pins definitions for TM1637 and can be changed to other ports    
#define DIO 7
#define ON 1
#define OFF 0
#define SW1 2
#define SW2 3


int ADJhour=0 ;
int ADJminute = 0;

int8_t TimeDisp[] = {0x00,0x00,0x00,0x00};
unsigned char ClockPoint = 1;

volatile int UPDATE ;
TM1637 tm1637(CLK,DIO);
RTC_DS3231 rtc;




void setup() {
  //
  pinMode(SW1, INPUT);
  pinMode(SW2, INPUT);
  
  //
  Timer1.initialize(500000);//timing for 500ms
  Timer1.attachInterrupt(TimingISR);//declare the interrupt serve routine:TimingISR
  //
  
  Serial.begin(9600);
  tm1637.init();
  tm1637.set(BRIGHT_TYPICAL);//BRIGHT_TYPICAL = 2,BRIGHT_DARKEST = 0,BRIGHTEST = 7;
  //
  if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }

  if (rtc.lostPower()) {
    Serial.println("RTC lost power, lets set the time!");
    // following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0));
  }
  
  
  // put your setup code here, to run once:

  
  
}

void loop() {
  // put your main code here, to run repeatedly:
   
   
  if (UPDATE == ON) {
    DispTime();
  
  }
  
  //ADJ HOUR
  if (digitalRead(SW1)) {
    ADJhour ++ ;
    if (ADJhour > 23) {
      ADJhour = 0;
    }
    ADJminute = (TimeDisp[2]*10) + TimeDisp[3];
    //Serial.print(ADJhour);
    //Serial.print(":");
    //Serial.println(ADJminute);
    //
    TimeDisp[0] = ADJhour/10 ;
    TimeDisp[1] = ADJhour%10;
    //
    tm1637.display(TimeDisp);
    rtc.adjust(DateTime(2014, 1, 21, ADJhour, ADJminute, 0));
    delay(150);
    
  }

  //ADJ Minute
  if (digitalRead(SW2)) {
    ADJminute ++ ;
    if (ADJminute > 59) {
      ADJminute = 0;
    }
    ADJhour = (TimeDisp[0]*10) + TimeDisp[1];
    TimeDisp[2] = ADJminute/10;
    TimeDisp[3] = ADJminute%10;
    //
    //Serial.print(ADJhour);
    //Serial.print(":");
    //Serial.println(ADJminute);
    //
    tm1637.display(TimeDisp);
    rtc.adjust(DateTime(2014, 1, 21, ADJhour, ADJminute, 0));
    delay(150);
  }
  


}

void TimingISR() {
  UPDATE = ON;
  
  
}

void DispTime() {
    DateTime now = rtc.now();
    ClockPoint = (~ClockPoint) & 0x01;
    if(ClockPoint)tm1637.point(POINT_ON);
    else tm1637.point(POINT_OFF); 

    TimeDisp[0] = now.hour()/10;
    TimeDisp[1] = now.hour()%10;
    TimeDisp[2] = now.minute()/10;
    TimeDisp[3] = now.minute()%10;
    
    
    tm1637.display(TimeDisp);
    UPDATE = OFF ;
  
}