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Raspberry Pi 52PI-RPI-RTC User Manual

Rtc expansion module

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

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Summary of Contents for Raspberry Pi 52PI-RPI-RTC

  • Page 1 Raspberry Pi RTC Module User Manual Raspberry Pi RTC Expansion Module User Manual 52PI-RPI-RTC Maximum Power at Minimum Size www.52pi.com Raspberry Pi RTC Module User Manual www.52pi.com...
  • Page 2 Raspberry Pi RTC Module User Manual Contact Us Raspberry Pi Geek Forum kd@52pi.com www.52pi.com Version:1.0 Data:2015.6 www.52pi.com...
  • Page 3 Raspberry Pi RTC Module User Manual 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:...
  • Page 4 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.
  • Page 5: Product Specification

    Raspberry Pi RTC Module User Manual 1:Product Specification: : www.52pi.com...
  • Page 6 Raspberry Pi through I2C bus. There is a Maxim DS1307 and CR1220 button 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:...
  • Page 7: Product Parameters

     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 below: www.52pi.com...
  • Page 8 Raspberry Pi RTC Module User Manual The instructions about serial port, like pictures below: www.52pi.com...
  • Page 9 Raspberry Pi RTC Module User Manual 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 www.52pi.com...
  • Page 10 Raspberry Pi RTC Module User Manual 8:More information: The DS1307 serial real-time clock (RTC) is a low-power, full binary-coded decimal(BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an I2c, bidirectional bus. The DS1307 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply.
  • Page 11 Raspberry Pi RTC Module User Manual 8.2:Test bench: Type in [sudo raspi-config] set up raspberry pi and prepare to enable i2c interface select Advanced Options 3. select I2c 4. select yes enable I2C www.52pi.com...
  • Page 12 Raspberry Pi RTC Module User Manual 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] www.52pi.com...
  • Page 13 Raspberry Pi RTC Module User Manual 8. type in [sudo reboot] wait the raspberry pi restart Then type in [sudo i2cdetect –y 1], if RTC works ,it should be like picture below Type in [sudo su –] change root user Type in [modprobe i2c-dev] to load I2C device Type in [echo "ds1307 0x68"...
  • Page 14 Raspberry Pi RTC Module User Manual www.52pi.com...