自动宠物喂食机的制作

电子说

1.3w人已加入

描述

步骤1:需要硬件

- 1x Arduino Mega 2560

- 1x步进电机12V 28BYJ-48

- 1x步进电机驱动器ULN2003

- 1x超声波传感器HC-SR04

- 1x时钟模块DS1307

- 1x 0.91“IIC I2C 128x32 SSD1306 SPI OLED显示模块

- 20x线路M/F& 2x线M/M

- 1x面包板

- 1x电池

步骤2:设置

电源= 5V

接地= GND

OLED_MOSI = 9

OLED_CLK = 10

OLED_DC = 11

OLED_CS = 12

OLED_RESET = 13

trigPin = 2

echoPin = 3

RTC SDA = SDA 20

RTC SCL = SCL 21

motorPin1Feed = 22

motorPin2Feed = 24

motorPin3Feed = 26

motorPin4Feed = 28

第3步:3D打印。..。.. 3D打印。..。..以及更多3D打印

您可能已经注意到STL的数量相当多 - 附在这个Instructable上的文件,因此我们的构造非常需要手头有3D打印机。

虽然我们使用了所有的设计来创建这台机器,但是有几个STL文件你可以在技术上没有生活;

“mount-base-pet-feeder.stl” - 取决于你打算如何设置包含布线的机舱,Arduino,步进电机和步进驱动器

“left-mount-adjuster-pet-feeder.stl“ -

”right-mount-adjuster-pet-feeder.stl“ -

”离开-spacer-mount-adjuster-pet-feeder.stl“ -

”right-spacer-mount-adjuster-pet-feeder.stl“ -

”Bowl-v2.stl “ - 如果你不使用我们特制的碗,我们不会抱怨。

“M& M‘s.stl” - 这仅用于在Autodesk Fusion 360中渲染和说明我们的自动PetFeeder。**不能用作宠物的食物。我们对不当使用不承担任何责任**

第4步:让我们添加一些代码

//Basic Embedded Programming 2. Semester Project UCL

//TinyRTC I2C module DS1307

#include ”Wire.h“

#define DS1307_I2C_ADDRESS 0x68

// Convert normal decimal numbers to binary coded decimal

byte decToBcd(byte val)

{

return( (val/10*16) + (val%10) );

}

// Convert binary coded decimal to normal decimal numbers

byte bcdToDec(byte val)

{

return( (val/16*10) + (val%16) );

}

#include

#include

#include

#include

#include

#include

RTC_DS1307 RTC;

//#include DS1307 rtc(SDA, SCL);

//declaring variables for the motor (driver) pins

int motorPin1Feed = 22;

int motorPin2Feed = 24;

int motorPin3Feed = 26;

int motorPin4Feed = 28;

//if(hour 》=

int petFeedMorning;

int petFeedAfternoon;

int petFedMorning;

int petFedAfternoon;

//Declare ultrasonic sensor pins

int trigPin = 2; // Trigger

int echoPin = 3; // Echo

long duration, cm, inches;

// Variables will change:

//Millis()

long previousMillis = 0; // will store last time LED was updated

// the follow variables is a long because the time, measured in miliseconds,

// will quickly become a bigger number than can be stored in an int.

long interval = 1000; // interval at which to blink (milliseconds)

//Disp millis()

//int period = 1000;

unsigned long time_now = 0;

#define STEPSFeed 64

#define STEPSTop 64 //Number of steps per revolution

#define STEPSBottom 64 //Number of steps per revolution

//The pin connections need to be 4 pins connected

// to Motor Driver In1, In2, In3, In4 and then the

// here in the sequence 1-3-2-4 for proper sequencing of 28BYJ48

Stepper small_stepperFeed(STEPSFeed, motorPin1Feed, motorPin3Feed, motorPin2Feed, motorPin4Feed);

Stepper small_stepperTop(STEPSTop, motorPin1Top, motorPin3Top, motorPin2Top, motorPin4Top);

int Steps2TakeFeed;

int Steps2TakeTop;

unsigned long startMillis; //some global variables available anywhere in the program

unsigned long currentMillis;

const unsigned long period = 1000; //the value is a number of milliseconds

#define SCREEN_WIDTH 128 // OLED display width, in pixels

#define SCREEN_HEIGHT 32 // OLED display height, in pixels

// Declaration for SSD1306 display connected using software SPI (default case):

#define OLED_MOSI 9

#define OLED_CLK 10

#define OLED_DC 11

#define OLED_CS 12

#define OLED_RESET 13

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT,

OLED_MOSI, OLED_CLK, OLED_DC, OLED_RESET, OLED_CS);

// ’Logo 2‘, 128x32px

static const unsigned char myBitmap [] PROGMEM = {

0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0xbc, 0x3c, 0xc6, 0x1e, 0x0e, 0x07, 0xfc, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0xbc, 0x3c, 0xc6, 0x3c, 0x0f, 0x07, 0xfc, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0xb4, 0x7c, 0xc6, 0x78, 0x1f, 0x07, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0xbe, 0x7c, 0xc6, 0xf0, 0x1b, 0x87, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0xbe, 0x7c, 0xc7, 0xe0, 0x1b, 0x87, 0xf8, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0xb6, 0x7c, 0xc7, 0xe0, 0x39, 0x87, 0xf8, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0xba, 0x5c, 0xc7, 0xf0, 0x31, 0xc7, 0xf8, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0xbb, 0xdc, 0xc7, 0x70, 0x7f, 0xc7, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0xbb, 0xdc, 0xc6, 0x38, 0x7f, 0xc7, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0xbb, 0xdc, 0xc6, 0x1c, 0x60, 0xe7, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0xbb, 0x9c, 0xc6, 0x1e, 0xe0, 0xe7, 0xfc, 0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0xb9, 0x9c, 0xc6, 0x0e, 0xe0, 0x67, 0xfc, 0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x60, 0xe7, 0xfc, 0xe0, 0xc7, 0x0e, 0x73, 0x83, 0x07, 0xe1, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x60, 0xc7, 0xfc, 0xf0, 0xc7, 0x0e, 0x73, 0x83, 0x0f, 0xf1, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x60, 0xe7, 0x00, 0xf8, 0xc7, 0x8e, 0x73, 0xc3, 0x1c, 0x39, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x60, 0xe7, 0x00, 0xf8, 0xc7, 0x8e, 0x73, 0xe3, 0x38, 0x19, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x60, 0xc7, 0x00, 0xfc, 0xc6, 0xce, 0x73, 0x63, 0x38, 0x01, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x7f, 0xe7, 0xfc, 0xec, 0xc6, 0xee, 0x73, 0x73, 0x38, 0x01, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x7f, 0xe7, 0xfc, 0xee, 0xc6, 0x6e, 0x73, 0x33, 0x38, 0xf9, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x60, 0xc7, 0x00, 0xe6, 0xc6, 0x7e, 0x73, 0x1b, 0x30, 0xf9, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x60, 0xc7, 0x00, 0xe3, 0xc6, 0x3e, 0x73, 0x1b, 0x38, 0x19, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x60, 0xe7, 0x00, 0xe3, 0xc6, 0x3e, 0x73, 0x0f, 0x38, 0x39, 0xff,

0xff, 0xbf, 0xff, 0xff, 0xfc, 0x60, 0xc7, 0xfc, 0xe1, 0xc6, 0x1e, 0x73, 0x0f, 0x1e, 0x79, 0xff,

0xff, 0xbf, 0xff, 0xff, 0xfc, 0x60, 0xc7, 0xfc, 0xe1, 0xc6, 0x0e, 0x73, 0x07, 0x0f, 0xf9, 0xff,

0xff, 0xbf, 0xff, 0xff, 0xfc, 0x60, 0xe7, 0xfe, 0xe0, 0xc6, 0x0e, 0x73, 0x07, 0x07, 0xc9, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff,

0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff

};

void setup() {

Wire.begin();

//Serial Port begin

Serial.begin(9600);

// Using this to set the initial time:

// DS1307 seconds, minutes, hours, day, date, month, year

// setDS1307time(30,9,19,1,1,4,19);

// 1 = Sunday

//Define inputs and outputs (Ultrasonic sensor)

pinMode(trigPin, OUTPUT);

pinMode(echoPin, INPUT);

startMillis = millis(); //initial start time

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

small_stepperFeed.setSpeed(200);

small_stepperTop.setSpeed(200);

// SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally

if(!display.begin(SSD1306_SWITCHCAPVCC)) {

Serial.println(F(”SSD1306 allocation failed“));

for(;;); // Don’t proceed, loop forever

}

// Show initial display buffer contents on the screen --

// the library initializes this with an Adafruit splash screen.

display.display();

delay(500); // Pause for 2 seconds

// Clear the buffer

display.clearDisplay();

}

void loop() {

//Over 35 cm display length, time, day and date

if(cm 》= 45) {

ultrasonic();

displayTimeSerial();

displayTimeDisplay();

delay(750);

displayDayDateDisplay();

delay(750);

checkTime();

Serial.print(”Morning: “);

Serial.println(petFeedMorning);

Serial.print(”Afternoon: “);

Serial.println(petFeedAfternoon);

}

//Between 35 cm (under) and 5 cm (over) feed pet, turn motor CW

//else if(cm 《= 20 && hour 》= 7 && hour 《= 13) {

if(cm 《= 45 && cm 》8) {

ultrasonic();

stepMotorFeed();

}

//Under 5 cm display length, time, day and date

else if(cm 《= 8) {

ultrasonic();

displayTimeSerial();

displayTimeDisplay();

if(petFedMorning 《1) {

petFedMorning +1;

Serial.print(petFedMorning);

}

}

}

void setDS1307time(byte second, byte minute, byte hour, byte dayOfWeek, byte

dayOfMonth, byte month, byte year)

{

// sets time and date data to DS1307

Wire.beginTransmission(DS1307_I2C_ADDRESS);

Wire.write(0); // set next input to start at the seconds register

Wire.write(decToBcd(second)); // set seconds

Wire.write(decToBcd(minute)); // set minutes

Wire.write(decToBcd(hour)); // set hours

Wire.write(decToBcd(dayOfWeek)); // set day of week (1=Sunday, 7=Saturday)

Wire.write(decToBcd(dayOfMonth)); // set date (1 to 31)

Wire.write(decToBcd(month)); // set month

Wire.write(decToBcd(year)); // set year (0 to 99)

Wire.endTransmission();

}

void readDS1307time(byte *second,

byte *minute,

byte *hour,

byte *dayOfWeek,

byte *dayOfMonth,

byte *month,

byte *year)

{

Wire.beginTransmission(DS1307_I2C_ADDRESS);

Wire.write(0); // set DS1307 register pointer to 00h

Wire.endTransmission();

Wire.requestFrom(DS1307_I2C_ADDRESS, 7);

// request seven bytes of data from DS1307 starting from register 00h

*second = bcdToDec(Wire.read() & 0x7f);

*minute = bcdToDec(Wire.read());

*hour = bcdToDec(Wire.read() & 0x3f);

*dayOfWeek = bcdToDec(Wire.read());

*dayOfMonth = bcdToDec(Wire.read());

*month = bcdToDec(Wire.read());

*year = bcdToDec(Wire.read());

}

void checkTime() {

byte second, minute, hour, dayOfWeek, dayOfMonth, month, year;

// retrieve data from DS1307

readDS1307time(&second, &minute, &hour, &dayOfWeek, &dayOfMonth, &month,

&year);

if(hour 》= 6 && hour 《= 11) {

petFeedMorning = 1;

}

else if (hour 》= 5 && hour 《= 13) {

petFeedMorning = 0;

}

if(hour 》= 17 && hour 《= 21) {

petFeedAfternoon = 1;

}

else if(hour 《= 16 && hour 》= 18) {

petFeedAfternoon = 0;

}

}

void displayTimeSerial()

{

byte second, minute, hour, dayOfWeek, dayOfMonth, month, year;

// retrieve data from DS1307

readDS1307time(&second, &minute, &hour, &dayOfWeek, &dayOfMonth, &month,

&year);

//Current function prints this on the serial monitor

Serial.print(hour, DEC);

// convert the byte variable to a decimal number when displayed

Serial.print(”:“);

if (minute《10)

{

Serial.print(”0“);

}

Serial.print(minute, DEC);

Serial.print(”:“);

if (second《10)

{

Serial.print(”0“);

}

//Print seconds on serial monitor

Serial.print(second, DEC);

Serial.print(” “);

//Print numerical day of the month on serial monitor

Serial.print(dayOfMonth, DEC);

Serial.print(”/“);

//Print month on serial monitor

Serial.print(month, DEC);

Serial.print(”/“);

//Print year on serial monitor

Serial.print(year, DEC);

Serial.print(” Day of week: “);

//Determine specific day of the week

switch(dayOfWeek){

case 1:

Serial.println(”Sunday“);

break;

case 2:

Serial.println(”Monday“);

break;

case 3:

Serial.println(”Tuesday“);

break;

case 4:

Serial.println(”Wednesday“);

break;

case 5:

Serial.println(”Thursday“);

break;

case 6:

Serial.println(”Friday“);

break;

case 7:

Serial.println(”Saturday“);

break;

}

}

void displayTimeDisplay()

{

byte second, minute, hour, dayOfWeek, dayOfMonth, month, year;

// retrieve data from DS1307

readDS1307time(&second, &minute, &hour, &dayOfWeek, &dayOfMonth, &month,

&year);

//Current function shows this on the OLED display

//Display

//TODO Millis

/*

currentMillis = millis(); //get the current ”time“ (actually the number of milliseconds since the program started)

if (currentMillis - startMillis 》= period) //test whether the period has elapsed

{

display.clearDisplay();

display.display();

display.setCursor(0,0);

display.setTextSize(2); // Draw 2X-scale text

display.setTextColor(WHITE);

display.print(cm);

display.println(” Millis“);

display.display();

digitalWrite(trigPin, LOW);

delayMicroseconds(5);

digitalWrite(trigPin, HIGH);

delayMicroseconds(10);

digitalWrite(trigPin, LOW);

startMillis = currentMillis; //IMPORTANT to save the start time of the current LED state.

}

*/

//Display distance measured from Ultrasonic sensor on OLED

display.clearDisplay();

display.display();

display.setCursor(0,0);

display.setTextSize(2); // Draw 2X-scale text

display.setTextColor(WHITE);

display.print(cm);

display.println(” cm“);

display.setTextSize(1); // Draw 2X-scale text

display.setTextColor(WHITE);

display.println();

//Display hours on OLED

display.print(hour, DEC);

//Converting the byte variable to a decimal number when displayed

display.print(”:“);

if (minute《10)

{

display.print(”0“);

}

//Display minutes on OLED

display.print(minute, DEC);

display.print(”:“);

if (second《10)

{

display.print(”0“);

}

//Display seconds on OLED

display.print(second, DEC);

display.print(” “);

//Between 35 cm (under) and 5 cm (over) feed pet, turn motor CW

//else if(cm 《= 20 && hour 》= 7 && hour 《= 13) {

if(cm 《= 35 && cm 》5) {

display.setCursor(85,25);

display.setTextSize(1); // Draw 2X-scale text

display.setTextColor(WHITE);

display.print(”FEEDING“);

}

//Under 5 cm display length, time, day and date

else if(cm 《= 5) {

display.setCursor(85,25);

display.setTextSize(1); // Draw 2X-scale text

display.setTextColor(WHITE);

display.print(”DONE“);

}

display.display();

//TODO Millis

//delay(1000);

}

void displayDayDateDisplay()

{

byte second, minute, hour, dayOfWeek, dayOfMonth, month, year;

//Retrieving data from DS1307

readDS1307time(&second, &minute, &hour, &dayOfWeek, &dayOfMonth, &month,

&year);

//Sending it to the OLED display

//Display

//TODO Millis

//Day

display.clearDisplay();

display.setCursor(0,0);

display.setTextSize(1); // Draw 2X-scale text

display.setTextColor(WHITE);

display.println();

//Determine specific day of the week

switch(dayOfWeek){

case 1:

display.println(”Sunday“);

//display.println();

break;

case 2:

display.println(”Monday“);

break;

case 3:

display.println(”Tuesday“);

break;

case 4:

display.println(”Wednesday“);

break;

case 5:

display.println(”Thursday“);

break;

case 6:

display.println(”Friday“);

break;

case 7:

display.println(”Saturday“);

break;

}

//Date

display.setTextSize(2); // Draw 2X-scale text

display.setTextColor(WHITE);

display.print(dayOfMonth, DEC);

display.print(”/“);

display.print(month, DEC);

display.print(”/“);

display.print(year, DEC);

display.println(” “);

display.display();

//TODO Millis

//delay(500);

}

void ultrasonicTimeout() {

// The sensor is triggered by a HIGH pulse of 10 or more microseconds.

// Give a short LOW pulse beforehand to ensure a clean HIGH pulse:

/*

//Without Millis

digitalWrite(trigPin, LOW);

delayMicroseconds(5);

digitalWrite(trigPin, HIGH);

delayMicroseconds(10);

digitalWrite(trigPin, LOW);

*/

currentMillis = millis(); //get the current ”time“ (actually the number of milliseconds since the program started)

if (currentMillis - startMillis 》= period) //test whether the period has elapsed

{

digitalWrite(trigPin, LOW);

delayMicroseconds(5);

digitalWrite(trigPin, HIGH);

delayMicroseconds(10);

digitalWrite(trigPin, LOW);

startMillis = currentMillis; //IMPORTANT to save the start time of the current LED state.

}

// Read the signal from the sensor: a HIGH pulse whose

// duration is the time (in microseconds) from the sending

// of the ping to the reception of its echo off of an object.

pinMode(echoPin, INPUT);

duration = pulseIn(echoPin, HIGH);

// Convert the time into a distance

cm = (duration/2) / 29.1; // Divide by 29.1 or multiply by 0.0343

inches = (duration/2) / 74; // Divide by 74 or multiply by 0.0135

Serial.print(inches);

Serial.print(”in, “);

Serial.print(cm);

Serial.print(”cm“);

Serial.println();

//delay(200);

}

void ultrasonic() {

// The sensor is triggered by a HIGH pulse of 10 or more microseconds.

// Give a short LOW pulse beforehand to ensure a clean HIGH pulse:

/*

//Without Millis

digitalWrite(trigPin, LOW);

delayMicroseconds(5);

digitalWrite(trigPin, HIGH);

delayMicroseconds(10);

digitalWrite(trigPin, LOW);

*/

currentMillis = millis(); //get the current ”time“ (actually the number of milliseconds since the program started)

if (currentMillis - startMillis 》= period) //test whether the period has elapsed

{

digitalWrite(trigPin, LOW);

delayMicroseconds(5);

digitalWrite(trigPin, HIGH);

delayMicroseconds(10);

digitalWrite(trigPin, LOW);

startMillis = currentMillis; //IMPORTANT to save the start time of the current LED state.

}

// Read the signal from the sensor: a HIGH pulse whose

// duration is the time (in microseconds) from the sending

// of the ping to the reception of its echo off of an object.

pinMode(echoPin, INPUT);

duration = pulseIn(echoPin, HIGH);

// Convert the time into a distance

cm = (duration/2) / 29.1; // Divide by 29.1 or multiply by 0.0343

inches = (duration/2) / 74; // Divide by 74 or multiply by 0.0135

Serial.print(inches);

Serial.print(”in, “);

Serial.print(cm);

Serial.print(”cm“);

Serial.println();

}

void stepMotorFeed() {

/*

currentMillis = millis(); //get the current ”time“ (actually the number of milliseconds since the program started)

if (currentMillis - startMillis 》= period) //test whether the period has elapsed

{

//function to turn stepper motor 32 steps left

small_stepperFeed.setSpeed(300); // 200 as max speed?

//ultrasonic();

Steps2TakeFeed = -3200; // Rotate CW

//ultrasonic();

small_stepperFeed.step(Steps2TakeFeed);

startMillis = currentMillis; //IMPORTANT to save the start time of the current LED state.

}

*/

//function to turn stepper motor 32 steps left

small_stepperFeed.setSpeed(300); // 200 as max speed?

//ultrasonic();

Steps2TakeFeed = -520; // Rotate CW

//ultrasonic();

small_stepperFeed.step(Steps2TakeFeed);

}

void testdrawlogo() {

display.clearDisplay();

display.drawBitmap(

(display.width() - SCREEN_WIDTH ),

(display.height() - SCREEN_HEIGHT),

myBitmap, SCREEN_WIDTH, SCREEN_HEIGHT, 1);

display.display();

// Invert and restore display, pausing in-between

display.invertDisplay(true);

delay(1000);

display.invertDisplay(false);

delay(8000);

}

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