سلام
تازه کار کردن با آردویینو رو شروع کردم
با کمک مثال های آماده و کمی تغییرات یه مدار ساعت درست کردم.
از ماژول ساعت و دمای DS3231 استفاده کردم به عنوان RTC.
یه مشکلی دارم ؛ وقتی ساعت یا دقیقه از 2 رقمی به یک رقمی تغییر میکنه ؛ رقم اضافی از صفحه حذف نمیشه.
مثلاً وقتی از 12:59:59 تبدیل میشه به 13:0:0 رقم های اضافی ثانیه شمار حذف نمیشه.
این هم عکس
فایل پیوست 1638
استفاده از دستور clear باعث رفرش اضافی صفحه و پرپر شدن صفحه میشه.
ممکنه راهنمایی کنید تا تغییراتی تو برنامه بدم تا ساعت رو در زمان های تک رقمی به صورت دورقمی نشون بده ؟؟
مثلاً به این صورت 13:07:08 ثانیه
این هم برنامه
کد:#include <Wire.h>
#include <LCD.h>
#include <LiquidCrystal_I2C.h>
#define I2C_ADDR 0x27 //Define I2C Address where the PCF8574A is
#define BACKLIGHT_PIN 3
#define En_pin 2
#define Rw_pin 1
#define Rs_pin 0
#define D4_pin 4
#define D5_pin 5
#define D6_pin 6
#define D7_pin 7
//Initialize the LCD
LiquidCrystal_I2C lcd(I2C_ADDR, En_pin,Rw_pin,Rs_pin,D4_pin,D5_pin,D6_pin,D7_pin);
#define DS3231_I2C_ADDRESS 104 // RTC is connected, address is Hex68 (Decimal 104)
// SCL - pin A5
// SDA - pin A4
// To set the clock, run the sketch and use the serial monitor.
// Enter T1124154091014; the code will read this and set the clock. See the code for full details.
byte seconds, minutes, hours, day, date, month, year;
char weekDay[4];
byte tMSB, tLSB;
float my_temp;
char my_array[100]; // Character array for printing something.
//Mehdi aray LED
int timer = 50; // The higher the number, the slower the timing.
int ledPins[] = {
2,3,4,5,6,7,8,9,10,11
}; // an array of pin numbers to which LEDs are attached
int pinCount = 10; // the number of pins (i.e. the length of the array)
//Mehdi aray LED
void setup()
{
Wire.begin();
Serial.begin(9600);
lcd.begin (16,2); //Define the LCD as 16 column by 2 rows
lcd.setBacklightPin(BACKLIGHT_PIN,POSITIVE);
//lcd.setBacklight(HIGH); //Switch on the backlight
//lcd.setCursor(0,0); //goto first column (column 0) and first line (Line 0)
//Mehdi aray LED
// the array elements are numbered from 0 to (pinCount - 1).
// use a for loop to initialize each pin as an output:
for (int thisPin = 0; thisPin < pinCount; thisPin++) {
pinMode(ledPins[thisPin], OUTPUT);
}
//Mehdi aray LED
}
void loop()
{
watchConsole();
get3231Date();
//Serial.print(weekDay); Serial.print(", "); Serial.print(date, DEC); Serial.print("/"); Serial.print(month, DEC);
//Serial.print("/"); Serial.print(year, DEC); Serial.print(" - ");
//Serial.print(hours, DEC); Serial.print(":"); Serial.print(minutes, DEC); Serial.print(":"); Serial.print(seconds, DEC);
my_temp = (float)get3231Temp();
//Serial.println(" <== Time & date");
//Serial.print("Temperature : ");
//Serial.println(my_temp);
//Serial.println("...............");
// NOTE: Arduino does NOT implement printing floats to a string.
// If you use the std C function : sprintf(my_array, "Temp: %4.2f", my_temp), It will NOT CONVERT.
// So I abandoned this, since I don't need to print the float to the LCD anyway.
sprintf(my_array, "TIME: %d:%d:%d", hours, minutes, seconds);
// Print a message to the LCD.
lcd.backlight();
lcd.setCursor(0,0);
lcd.print(my_array);
lcd.setCursor(0,1);
lcd.print("TEMP: ");
lcd.setCursor(6,1);
lcd.print(my_temp);
lcd.setCursor(11,1);
lcd.print(" 'C");
//Mehdi aray LED
// loop from the lowest pin to the highest:
for (int thisPin = 0; thisPin < pinCount; thisPin++) {
// turn the pin on:
digitalWrite(ledPins[thisPin], HIGH);
delay(timer);
// turn the pin off:
digitalWrite(ledPins[thisPin], LOW);
}
// loop from the highest pin to the lowest:
for (int thisPin = pinCount - 1; thisPin >= 0; thisPin--) {
// turn the pin on:
digitalWrite(ledPins[thisPin], HIGH);
delay(timer);
// turn the pin off:
digitalWrite(ledPins[thisPin], LOW);
}
//Mehdi aray LED
}
// Convert normal decimal numbers to binary coded decimal
byte decToBcd(byte val)
{
return ( (val/10*16) + (val%10) );
}
void watchConsole()
{
if (Serial.available()) { // Look for char in serial queue and process if found
if (Serial.read() == 84) { //If command = "T" Set Date
set3231Date();
get3231Date();
Serial.println(" ");
}
}
}
void set3231Date()
{
//T(sec)(min)(hour)(dayOfWeek)(dayOfMonth)(month)(year)
//T(00-59)(00-59)(00-23)(1-7)(01-31)(01-12)(00-99)
//Example: 02-Feb-09 @ 19:57:11 for the 3rd day of the week -> T1157193020209
// T1124154091014
seconds = (byte) ((Serial.read() - 48) * 10 + (Serial.read() - 48)); // Use of (byte) type casting and ascii math to achieve result.
minutes = (byte) ((Serial.read() - 48) *10 + (Serial.read() - 48));
hours = (byte) ((Serial.read() - 48) *10 + (Serial.read() - 48));
day = (byte) (Serial.read() - 48);
date = (byte) ((Serial.read() - 48) *10 + (Serial.read() - 48));
month = (byte) ((Serial.read() - 48) *10 + (Serial.read() - 48));
year = (byte) ((Serial.read() - 48) *10 + (Serial.read() - 48));
Wire.beginTransmission(DS3231_I2C_ADDRESS);
Wire.write(0x00);
Wire.write(decToBcd(seconds));
Wire.write(decToBcd(minutes));
Wire.write(decToBcd(hours));
Wire.write(decToBcd(day));
Wire.write(decToBcd(date));
Wire.write(decToBcd(month));
Wire.write(decToBcd(year));
Wire.endTransmission();
}
void get3231Date()
{
// send request to receive data starting at register 0
Wire.beginTransmission(DS3231_I2C_ADDRESS); // 104 is DS3231 device address
Wire.write(0x00); // start at register 0
Wire.endTransmission();
Wire.requestFrom(DS3231_I2C_ADDRESS, 7); // request seven bytes
if(Wire.available()) {
seconds = Wire.read(); // get seconds
minutes = Wire.read(); // get minutes
hours = Wire.read(); // get hours
day = Wire.read();
date = Wire.read();
month = Wire.read(); //temp month
year = Wire.read();
seconds = (((seconds & B11110000)>>4)*10 + (seconds & B00001111)); // convert BCD to decimal
minutes = (((minutes & B11110000)>>4)*10 + (minutes & B00001111)); // convert BCD to decimal
hours = (((hours & B00110000)>>4)*10 + (hours & B00001111)); // convert BCD to decimal (assume 24 hour mode)
day = (day & B00000111); // 1-7
date = (((date & B00110000)>>4)*10 + (date & B00001111)); // 1-31
month = (((month & B00010000)>>4)*10 + (month & B00001111)); //msb7 is century overflow
year = (((year & B11110000)>>4)*10 + (year & B00001111));
}
else {
//oh noes, no data!
}
switch (day) {
case 1:
strcpy(weekDay, "Sun");
break;
case 2:
strcpy(weekDay, "Mon");
break;
case 3:
strcpy(weekDay, "Tue");
break;
case 4:
strcpy(weekDay, "Wed");
break;
case 5:
strcpy(weekDay, "Thu");
break;
case 6:
strcpy(weekDay, "Fri");
break;
case 7:
strcpy(weekDay, "Sat");
break;
}
}
float get3231Temp()
{
float temp3231;
//temp registers (11h-12h) get updated automatically every 64s
Wire.beginTransmission(DS3231_I2C_ADDRESS);
Wire.write(0x11);
Wire.endTransmission();
Wire.requestFrom(DS3231_I2C_ADDRESS, 2);
if(Wire.available()) {
tMSB = Wire.read(); //2's complement int portion
tLSB = Wire.read(); //fraction portion
temp3231 = (tMSB & B01111111); //do 2's math on Tmsb
temp3231 += ( (tLSB >> 6) * 0.25 ); //only care about bits 7 & 8
}
else {
//oh noes, no data!
}
return temp3231;
}
