DF ROBOT DS1307 Manuel utilisateur
RealTimeClockModule(DS1307)V1.1(SKU:DFR0151)
Contents
1Introduction
2Specification
3Application
4Tutorial
4.1 Connection diagram
4.2 Sample Code
4.3 Result
5Trouble shooting
Introduction
The DS1307 Real Time Clock developed by one of our designers: Waiman. The module comes fully
assembled and pre-programmed with the current time (ok, so it's our current time - MST). The
included Lithium coin cell battery (CR1225 41mAh) will run the module for a minimum of 9 years (17
years typical) without external 5V power. The DS1307 is accessed via the I2C protocol.
Except the DS1307 real time clock, the module also integrate the I2C EEPROM chip(24C32) and the
DS18B20 sensor interface. The I2C EEPROM makes it possible to save the sensor data easily
without spending too much microcontroller source. And the DS18B20 interface with the pull-up
resistor embeded will be helpful to extend temperature monitoring feature for your project.
Specification
Working voltage: 5v
Two wire I2C interface
Hour : Minutes : Seconds AM/PM
Downloaded from Arrow.com.
Day Month, Date - Year
Leap year compensation
Accurate calendar up to year 2100
Consumes Less than 500nA in Battery-Backup
Battery included
1Hz output pin
56 Bytes of Non-volatile memory available to user
provides 32,768 bits(4KB) of serial electrically erasable and programmable
read only memory (EEPROM)
Embed DS18B20 temperature sensor interface with the pull-up resistor
Dimensions: 28mm x 25mm x 8mm
Application
Real time monitoring system
Timer
Tutorial
Connectiondiagram
Wiring instruction
GND——GND VCC——5V
SDA——A4 SCL——A5
DS——D2
SampleCode
Please download and install the Arduino library first.
how to install libary
http://www.dfrobot.com/image/data/DFR0151/V1.1/Arduino%20library.zip
https://www.arduino.cc/en/Guide/Libraries#.UxU8mdzF9H0
Downloaded from Arrow.com.Downloaded from Arrow.com.
#include <Wire.h>
#include <DS1307.h>
/*
about set time:
format: year,month,day,week,hour,min,sec
example: 14,03,25,02,13,55,10 2014.03.25 tuesday 13:55:10
*/
String comdata = "";
int mark=0;
//store the current time data
int rtc[7];
//store the set time data
byte rr[7];
//light pin
int ledPin = 13;
//initial light
void setup()
{
DDRC |= _BV(2) | _BV(3); // POWER:Vcc Gnd
PORTC |= _BV(3); // VCC PINC3
pinMode(ledPin, OUTPUT);
//initial baudrate
Serial.begin(9600);
//get current time
RTC.get(rtc, true);
//if time is wrong reset to default time
if (rtc[6] < 12) {
//stop rtc time
RTC.stop();
RTC.set(DS1307_SEC, 1);
RTC.set(DS1307_MIN, 27);
RTC.set(DS1307_HR, 01);
RTC.set(DS1307_DOW, 7);
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.
RTC.set(DS1307_DATE, 12);
RTC.set(DS1307_MTH, 2);
RTC.set(DS1307_YR, 12);
//start rtc time
RTC.start();
}
//RTC.SetOutput(LOW);
//RTC.SetOutput(HIGH);
//RTC.SetOutput(DS1307_SQW1HZ);
//RTC.SetOutput(DS1307_SQW4KHZ);
//RTC.SetOutput(DS1307_SQW8KHZ);
RTC.SetOutput(DS1307_SQW32KHZ);
}
void loop()
{
int i;
//get current time
RTC.get(rtc, true);
//print current time format : year month day week hour min sec
for (i = 0; i < 7; i++)
{
Serial.print(rtc[i]);
Serial.print(" ");
}
//blink the light
Serial.println();
digitalWrite(ledPin, HIGH);
delay(500);
digitalWrite(ledPin, LOW);
delay(500);
//
int j = 0;
//read all the data
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.
while (Serial.available() > 0)
{
comdata += char(Serial.read());
delay(2);
mark = 1;
}
//if data is all collected,then parse it
if (mark == 1)
{
Serial.println(comdata);
Serial.println(comdata.length());
//parse data
for (int i = 0; i < comdata.length() ; i++)
{
//if the byte is ',' jump it,and parse next value
if (comdata[i] == ',')
{
j++;
}
else
{
rr[j] = rr[j] * 10 + (comdata[i] - '0');
}
}
comdata = String("");
RTC.stop();
RTC.set(DS1307_SEC, rr[6]);
RTC.set(DS1307_MIN, rr[5]);
RTC.set(DS1307_HR, rr[4]);
RTC.set(DS1307_DOW, rr[3]);
RTC.set(DS1307_DATE, rr[2]);
RTC.set(DS1307_MTH, rr[1]);
RTC.set(DS1307_YR, rr[0]);
RTC.start();
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.
mark = 0;
}
}
Result
Troubleshooting
Thank the guy to share this great way to update DS1307 clock through computer, in this way, you
could get the precise time.
Guide Link http://www.lucadentella.it/en/2013/11/27/rtcsetup/
Download library https://github.com/adafruit/RTClib
Download sketch & pc_software https://github.com/lucadentella/RTCSetup
More question and cool idea,visit DFRobot Forum
Powered By DFRobot © 2008-2017
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.
Table des matières
Autres manuels DF ROBOT Unité de contrôle
DF ROBOT
DF ROBOT TEL0097 Manuel utilisateur
DF ROBOT
DF ROBOT TEL0070 Manuel utilisateur
DF ROBOT
DF ROBOT TEL0051 Manuel utilisateur
DF ROBOT
DF ROBOT DFR0699 Manuel utilisateur
DF ROBOT
DF ROBOT DFPLayer Mini Manuel utilisateur
DF ROBOT
DF ROBOT SEN0521 Manuel utilisateur
DF ROBOT
DF ROBOT BLE4.1 Manuel utilisateur
Manuels Unité de contrôle populaires d'autres marques
Festo
Festo Compact Performance CP-FB6-E Manuel de la liste des pièces
Elo TouchSystems
Elo TouchSystems DMS-SA19P-EXTME Manuel utilisateur
JS Automation
JS Automation MPC3034A Manuel utilisateur
JAUDT
JAUDT SW GII 6406 Series Guide rapide
Spektrum
Spektrum Air Module System Manuel utilisateur
BOC Edwards
BOC Edwards Q Series Manuel utilisateur
