电子产品世界

根据各种来源，包括联合国人类住区规划署的资料，今天只有20亿人有机会使用洗衣机，而其余50亿人，特别是妇女，则依靠手洗。这项工作不仅累人，而且几乎没有附加价值，而且限制了他们获得教育、就业和休闲时间的机会。

AquaBox是一种运输家用洗衣机的集装箱。它采用即插即用系统：只需要水就可以操作。由于集成了太阳能电池板和电池，它完全独立于电网，可以安装在基础设施很少或没有基础设施的地区。

该系统采用微控制器实现全自动控制。用户只需要将一枚硬币插入硬币接收器就可以激活洗衣机。

这个设备已经被编程来识别特定的硬币，并发送一个电子信号来启动洗涤过程。

硬币选择器向微控制器(Arduino Nano)发送脉冲，以识别输入的欧元金额。当它达到设定的上限(例如4欧元)时，它会激活一个继电器，驱动一个通用电机(模拟洗衣机的启动)。

代码

// Libreras

#include

#include

#include

#include

//declaro las variables

#define CLK 3

#define DIO 4

TM1637Display display(CLK, DIO);

elapsedMillis timer;

elapsedMillis countDownTimer;

long interval_timer = 10000; // time the timer will count

bool countDownStarted = false;

int i= 0;

int CuentaImpulso=0;

float total_amount=0;

const uint8_t RELAY_PIN = 7;

const uint8_t LED_V_PIN = 5;

const uint8_t LED_R_PIN = 6;

const uint8_t BUZZER_PIN = 8;

void turnOnRelay();

void turnOffRelay();

void imprime();

void setup() {

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

Serial.begin(9600);

display.setBrightness(0x0f);

attachInterrupt(0,Impulso, FALLING); //Function that captures the pulse that arrives from the coin selector through PIN 2. Each time one arrives, it CALLS the "Impulse" function and increases the counter

//EEPROM.get(0,total_amount);

display.clear();

pinMode(RELAY_PIN, OUTPUT);

pinMode(LED_V_PIN, OUTPUT);

pinMode(LED_R_PIN, OUTPUT);

pinMode(BUZZER_PIN, OUTPUT);

turnOffRelay();

digitalWrite(LED_R_PIN, HIGH);

}

void Impulso ()

{

CuentaImpulso=CuentaImpulso+1;

//i_count=i;

//i=0;

}

void loop() {

//display.clear();

i=i+1; // "i" increases every millisecond...it is assumed

//Serial.println("Pulsos:");

//Serial.println(CuentaImpulso);

//Serial.println("Total amount:");

//Serial.println(total_amount);

//delay(1000);

if (CuentaImpulso==2){

total_amount=total_amount+1; //count 1 euro

CuentaImpulso=0;

imprime();

}

if (CuentaImpulso==1){

total_amount=total_amount+0.5; //count 0.5 euro

imprime();

CuentaImpulso=0;

}

display.showNumberDecEx(total_amount*100.0, 0b11100000, false, 4, 0); // It multiplies the euros by 100 to center the data on the display screen and use the colon as a separator.

if (total_amount==4 && !countDownStarted){

countDownStarted = true;

timer = 0;

countDownTimer = timer; //the timer countdown is activated

turnOnRelay();

}

if (total_amount>=4 && countDownStarted) //At 4 euros it activates de relay and start the count down...it could be the amount you desire

{

if (timer >= interval_timer * total_amount*0.8)

{

digitalWrite (BUZZER_PIN, HIGH);

}

if (timer >= interval_timer * total_amount)

{

Serial.println("Time is up!");

turnOffRelay();

countDownStarted = false;

total_amount = 0;

display.clear();

}

}

}

void turnOnRelay()

{

digitalWrite(RELAY_PIN, HIGH);

digitalWrite(LED_R_PIN, LOW);

digitalWrite(LED_V_PIN, HIGH);

}

void turnOffRelay()

{

digitalWrite(RELAY_PIN, LOW);

digitalWrite(LED_R_PIN, HIGH);

digitalWrite(LED_V_PIN, LOW);

digitalWrite (BUZZER_PIN, LOW);

}

void imprime()

{

Serial.println("Euros introduced:");

Serial.println(total_amount);

}

关键词： 微控制器 继电器 太阳能电池板 AquaBox