Adafruit Data Logger Shield (RTC and SD)

File:TArduinoAdafruitDataLoggerShield.png

Summary

The Adafruit Data Logger Shield combines a Real Time Clock (RTC) and SD card interface for time-stamped data logging applications, featuring comprehensive clock functionality and data storage capabilities.

Description

This data logging shield integrates a precision Real Time Clock with alarm functions, timer capabilities, and power management features, combined with an SD card interface for storing time-stamped data. The RTC includes multiple alarm settings, clock output, frequency control, and power failure detection, while the SD card interface supports data storage with timestamping. Ideal for environmental monitoring, scientific data collection, and any application requiring accurate timekeeping with data recording.

Diagram:

Properties

• Real Time Clock – Real Time Clock configuration:
  • Alarm – Clock alarm settings:
    • Day – Day alarm settings:
      • Enabled – Enables/disables day alarm (Default: False).
      • Value – Day value (Default: 1).
    • Hour – Hour alarm settings:
      • Enabled – Enables/disables hour alarm (Default: False).
      • Value – Hour value (Default: 0).
    • Minute – Minute alarm settings:
      • Enabled – Enables/disables minute alarm (Default: False).
      • Value – Minute value (Default: 0).
    • Week Day – Weekday alarm settings:
      • Enabled – Enables/disables weekday alarm (Default: False).
      • Value – Weekday value (Default: 0).
    • Interrupt Enabled – Enables alarm interrupts (Default: False).
  • Capacitor12_6 – Capacitor configuration (Default: False).
  • Clock Out – Clock output settings:
    • Enabled – Enables clock output (Default: True).
    • Frequency – Output frequency (Default: pcf23co32768Hz).
  • Elements – Configurable elements (Default: 0 items).
  • Enabled – Enables/disables RTC functionality (Default: True).
  • Offset – Clock offset correction:
    • Correction Interrupt Enabled – Enables correction interrupts (Default: False).
    • Per Minute – Per-minute correction (Default: False).
    • Value – Offset value (Default: 0).
  • Power Management – Power management settings:
    • Battery Low Interrupt Enabled – Enables battery low interrupts (Default: False).
    • Power Switch Interrupt Enabled – Enables power switch interrupts (Default: False).
    • Switch Mode – Power switch mode (Default: ftc23psmSinglePower).
  • Second And Timer A – Second timer configuration:
    • Clock Frequency – Timer clock frequency (Default: pcf23Auto).
    • Enabled – Enables timer A (Default: True).
    • Interrupt Enabled – Enables timer interrupts (Default: False).
    • Is Watchdog – Watchdog timer mode (Default: False).
    • Period (S) – Timer period in seconds (Default: 1).
    • Pulse Interrupt Enabled – Enables pulse interrupts (Default: False).
    • Second Interrupt Enabled – Enables second interrupts (Default: False).
  • Timer B – Secondary timer configuration:
    • Clock Frequency – Timer clock frequency (Default: pcf23Auto).
    • Enabled – Enables timer B (Default: True).
    • Interrupt Enabled – Enables timer interrupts (Default: False).
    • Low Pulse Width (mS) – Low pulse width in milliseconds (Default: 46.875ms).
    • Period (S) – Timer period in seconds (Default: 1).
    • Pulse Interrupt Enabled – Enables pulse interrupts (Default: False).
• SD – SD card interface:
  • Elements – SD card elements (Default: 0 items).
  • Enabled – Enables/disables SD card functionality (Default: True).
• Name – Component identifier (Default: Adafruit Data Logger Shield (RTC and SD)).

Pins

Input Pins

• SDA (i2c) – I2C data line for RTC communication.
• SCL (i2c) – I2C clock line for RTC communication.
• MOSI (spi) – SPI data output to SD card.
• MISO (spi) – SPI data input from SD card.
• SCK (spi) – SPI clock line.
• CS (digital) – SD card chip select.
• Power (power) – Shield power supply input.

Output Pins

• Second And Timer A Out (digital) – Second timer output.
• Timer B Out (digital) – Timer B output.
• Clock Out (digital) – Clock frequency output.
• Alarm Out (digital) – Alarm trigger output.
• Battery Low Out (digital) – Battery low status output.
• Power Switched Out (digital) – Power switch status output.
• Integrity Compromised Out (digital) – Data integrity status output.
• Success Out (digital) – Operation success status.
• Error Info Out (digital) – Error information output.
• SD Data Out (spi) – SD card data output.

Categories

• File:Shield.png – Arduino shield form factor components.
• File:RTC.png – Real Time Clock components.
• File:DataLogger.png – Data logging components.
• File:SD.png – SD card interface components.
• File:I2C.png – I2C communication components.
• File:SPI.png – SPI communication components.
• File:Time.png – Timekeeping and timing components.