Adafruit Assembled Data Logging shield for Arduino

Introducing a versatile and easy-to-use data logging shield designed for Arduino enthusiasts. This shield provides a dedicated solution for logging data with a simple, low-cost design that’s both easy to assemble and customize. It includes comprehensive documentation and libraries, making it quick to get started, with full compatibility with most Arduino boards.

The latest version of this popular shield maintains all the key features of the original and is "R3" compatible, meaning it works with most Arduino boards and compatible models. You’ll be up and running in no time, saving data to SD cards formatted in FAT16 or FAT32, which can later be analyzed using plotting tools, spreadsheets, or other programs. The built-in Real-Time Clock (RTC) keeps track of time even when the Arduino is powered off, allowing you to timestamp your data accurately.

Please note that the shield doesn’t come with an Arduino board, SD card, or coin cell battery. The components come pre-soldered and tested, but headers are not included, so some basic soldering skills will be required to complete the setup—though it’s simple enough for beginners and can be done in under 15 minutes.

Features include:

• SD card interface: Supports FAT16/FAT32 formatted cards and includes 3.3V level shifting to protect your SD card.
• Real-time clock: Keeps accurate time even during power outages, with a battery backup that lasts for years.
• Prototyping area: Includes space for soldering additional connectors, circuitry, or sensors.
• 3.3V voltage regulator: Provides reliable power for SD cards requiring higher power, and also serves as a stable reference voltage.

This shield is compatible with various Arduino models:

• Arduino UNO (ATmega328) – 4 analog channels at 10-bit resolution, 6 if RTC is not used.
• Arduino Leonardo (ATmega32u4) – 12 analog channels at 10-bit resolution.
• Arduino Mega (ATmega2560) – 16 analog inputs (10-bit resolution).
• Arduino Zero (ATSAMD21) – 6 analog inputs (12-bit resolution).
• Arduino Due – 12 analog inputs (12-bit resolution).

Perfect for logging data from digital sensors, serial data, or bit timings. The shield is also equipped with included libraries and example code for both SD and RTC, making it easy to integrate into your projects.

For more information, including detailed schematics, example projects, and tutorials, check out the data logger shield webpage.