SparkFun OpenLog Open-source data logger works over a simple serial connection Supports microSD FAT16/32 cards up to 32GB Configurable baud rates up to 115200bps Preprogrammed ATmega328 and bootloader

Description

💡 Capture every byte, never miss a beat with OpenLog!

The SparkFun OpenLog is an open-source, Arduino-compatible serial data logger featuring an onboard ATmega328 running at 16MHz. It supports microSD cards up to 64GB with FAT16/32 formatting, configurable baud rates up to 115200bps, and ultra-low power consumption averaging 5-6mA. Designed for seamless integration with Arduino Pro/Pro Mini boards, it offers a simple command interface, real-time write status LEDs, and SPI pogo pins for versatile hardware connectivity—ideal for scientific data capture or debugging in professional projects.