DFR0151

DFR0151 Datasheet

Real Time Clock Module DS1307 V1.1 SKU:DFR0151

Part	Datasheet
DFR0151	DFR0151 (pdf)

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Real Time Clock Module DS1307 V1.1 SKU:DFR0151 Contents • 1 Introduction • 2 Specification • 3 Application • 4 Tutorial Connection diagram Sample Code Result • 5 Trouble 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 • 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 Connection diagram Sample Code Wiring instruction Please download and install the Arduino library first. how to install libary #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 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 ; 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 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 ; mark = 0; Result Trouble shooting 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 Download library Download sketch & pc_software More question and cool idea,visit DFRobot Forum Powered By DFRobot 2008-2017

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Real Time Clock Module DS1307 V1.1 SKU:DFR0151

Contents
• 1 Introduction
• 2 Specification
• 3 Application
• 4 Tutorial

Connection diagram Sample Code Result
• 5 Trouble 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
• 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

Connection diagram

Sample Code

Wiring instruction

Please download and install the Arduino library first. how to install libary
#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 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 ;

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
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 ;
mark = 0;

Result

Trouble shooting

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 Download library Download sketch & pc_software More question and cool idea,visit DFRobot Forum

Powered By DFRobot 2008-2017

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Datasheet ID: DFR0151 508657