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Raspberry Pi RTC Module User Manual

www.52pi.com

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Raspberry Pi RTC Expansion Module

User Manual

52PI-RPI-RTC

Maximum Power at Minimum Size

www.52pi.com

Raspberry Pi RTC Module User Manual

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Содержание 52PI-RPI-RTC

Страница 1: ...Raspberry Pi RTC Module User Manual www 52pi com 1 Raspberry Pi RTC Expansion Module User Manual 52PI RPI RTC Maximum Power at Minimum Size www 52pi com Raspberry Pi RTC Module User Manual ...

Страница 2: ...Raspberry Pi RTC Module User Manual www 52pi com 2 Contact Us Raspberry Pi Geek Forum kd 52pi com www 52pi com Version 1 0 Data 2015 6 ...

Страница 3: ...nual www 52pi com 3 Directory 1 Product Specification 7 2 Produce Overview 8 3 Produce Features 8 4 Port 8 5 Product Parameters 8 6 Typical Application 8 7 How to use 9 8 More information 11 8 1 schematic diagram 11 8 2 test index 12 ...

Страница 4: ...ate these information Some information in the document might disable in your local area that include product and service You can consult with contact and agency in your local area Copyright to the document belong to Raspberry Pi Geek Forum User only can use these content after he or she get authorization from our company or other obligee However user can not copy paraphrase or creative similar dev...

Страница 5: ...Raspberry Pi RTC Module User Manual www 52pi com 5 1 Product Specification ...

Страница 6: ... cell on the board to keep the real time for a long time after the Raspberry Pi has it s power down Set a serial port TTL convenient way online debugging 3 Produce Features Use Maxim DS1307 chip Extends CR1220 button cell backup Can be operated by a shell Set a serial port connector Programmable square wave output signal Consumes Less than 500nA in Battery Backup Mode Automatic Power Fail Detect a...

Страница 7: ...nnector 5 Product Parameters Accuracy 2ppm from 0 C to 40 C Work voltage 5V Battery Backup Input for Continuous Time keeping Real Time Clock Counts Seconds Minutes Hours Day Date Month and Year with Leap Year Compensation Valid Up to 2100 Work temperature 0 C to 70 C 6 Typical Application Smart home Utility Power Meters Telematics 7 How to use Just insert the module to Raspberry Pi like pictures b...

Страница 8: ...Raspberry Pi RTC Module User Manual www 52pi com 8 The instructions about serial port like pictures below ...

Страница 9: ...Raspberry Pi RTC Module User Manual www 52pi com 9 Serial Communication line Connect to module s 5V GND TX RX pin caution You must not make raspberry pi powered by USB and serial line at the same time ...

Страница 10: ...p supply We select the 8 Pin SO package chip used in this Module and minimizes the required space The RTC maintains seconds minutes hours day date month and year information The date at the end of the month is automatically adjusted for months with fewer than 31 days including corrections for leap year The clock operates in either the 24 hour or 12 hour format The CR1220 backup battery will keep t...

Страница 11: ...rry Pi RTC Module User Manual www 52pi com 11 8 2 Test bench 1 Type in sudo raspi config set up raspberry pi and prepare to enable i2c interface 2 select Advanced Options 3 select I2c 4 select yes enable I2C ...

Страница 12: ...pberry Pi RTC Module User Manual www 52pi com 12 5 type in sudo vim tiny etc modules to open file modules 6 add i2c dev device like picture below 7 install i2c tools type in sudo apt get install i2c tools ...

Страница 13: ...user Type in modprobe i2c dev to load I2C device Type in echo ds1307 0x68 sys class i2c adapter i2c 1 new_device add RTC to system Then you can use hwclock command to use this RTC module If you want to know more about hwclock command you can type in man hwclock to get details A brief description like following Command hwclock r to get RTC time Command hwclock w set the system time to RTC time Like...

Страница 14: ...Raspberry Pi RTC Module User Manual www 52pi com 14 ...

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