It gives me an error saying error compiling for board arduino. It also says it found multiple libraries for DS3231.h

#include #include #include #include #include

const byte ROWS = 4; // Four rows const byte COLS = 4; // Three columns

// Define the Keymap

char keys[ROWS][COLS] = {

{'1','2','3','A'},

{'4','5','6','B'},

{'7','8','9','C'},

{'*','0','#','D'}

};

// Connect keypad ROW0, ROW1, ROW2 and ROW3 to these Arduino pins.

byte rowPins[ROWS] = { 2, 3, 4, 5 };

// Connect keypad COL0, COL1 and COL2 to these Arduino pins.

byte colPins[COLS] = { 6, 7, 8, 9 };

// Create the Keypad Keypad kpd = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );

DS3231 rtc(A4, A5); Servo servo_test; //initialize a servo object for the connected servo LiquidCrystal lcd(A0, A1, A2, 11, 12, 13); // Creates an LC object. Parameters: (rs, enable, d4, d5, d6, d7)

//int angle = 0; // int potentio = A0; // initialize the A0analog pin for potentiometer int t1, t2, t3, t4, t5, t6;

boolean feed = true; // condition for alarm

char key; int r1[6]; //for feed time 1 int r2[6]; // for feed time 2

void setup() { servo_test.attach(10); // attach the signal pin of servo to pin9 of arduino rtc.begin(); lcd.begin(16,2); servo_test.write(55); Serial.begin(9600); pinMode(A0, OUTPUT); pinMode(A1, OUTPUT); pinMode(A2, OUTPUT); }

void loop() {

lcd.setCursor(0,0); int buttonPress; buttonPress = digitalRead(A3);

if (buttonPress==1) setFeedingTime();

lcd.clear(); lcd.setCursor(0,0); lcd.print("Press A to feed another time"); key = kpd.getKey();

if (key == 'A') setAnotherFeedingTime();

//Serial.println(buttonPress);

lcd.print("Time: "); String t = ""; t = rtc.getTimeStr(); t1 = t.charAt(0)-48; t2 = t.charAt(1)-48; t3 = t.charAt(3)-48; t4 = t.charAt(4)-48; t5 = t.charAt(6)-48; t6 = t.charAt(7)-48;

lcd.print(rtc.getTimeStr()); lcd.setCursor(0,1); lcd.print("Date: "); lcd.print(rtc.getDateStr());

if (t1==r1[0] && t2==r1[1] && t3==r1[2] && t4==r1[3]&& t5<1 && t6<3 feed ==true) { servo_test.write(100);>

if(t1==r2[0] && t2==r2[1] && t3==r2[2] && t4==r2[3]&& t5<1 && t6<3 feed ==true) { servo_test.write(100);>

void setFeedingTime() { feed = true; int i=0;

lcd.clear(); lcd.setCursor(0,0); lcd.print("Set feeding Time"); lcd.clear(); lcd.print("HH:MM"); lcd.setCursor(0,1);

while(1){ key = kpd.getKey();

char j; if(key!=NO_KEY){ lcd.setCursor(j,1); lcd.print(key); r1[i] = key-48; i++; j++;

if (j==2) { lcd.print(":"); j++; } delay(500); }

if (key == 'D') {key=0; break; } } }

void setAnotherFeedingTime() { feed = true; int i=0;

lcd.clear(); lcd.setCursor(0,0); lcd.print("Set feeding Time 2"); lcd.clear(); lcd.print("HH:MM"); lcd.setCursor(0,1);

while(1){ key = kpd.getKey();

char j; if(key!=NO_KEY){ lcd.setCursor(j,1); lcd.print(key); r2[i] = key-48; i++; j++;

if (j==2) { lcd.print(":"); j++; } delay(500); }

if (key == 'D') {key=0; break; } } }