The ultimate 'black box' for your project. This open-source logger with pre-soldered headers automatically records any serial data to a microSD card (up to 32GB) over a simple two-wire connection.
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The SparkFun OpenLog with Headers is an open-source data logger that acts as a "black box" for your digital project. This board can be a lifesaver and works over a simple serial connection to store large amounts of data on a microSD card. Whether you are debugging a complex robot, recording scientific sensor data in the field, or capturing weather trends from your home office, the OpenLog captures it all without requiring complex code! This version of the OpenLog even includes pre-soldered headers for your convenience.
The best part of the OpenLog is its simplicity. It connects to your microcontroller via standard serial pins. Once powered, anything you "print" to the serial port is automatically saved to a text file on the card.
We designed the OpenLog to be small enough to tuck into any enclosure and flexible enough to handle any job. It is essentially a standalone development board that comes pre-programmed and ready to go.
Brands
config.txt file on the SD card, and you're done.If you need to log data faster (up to 500,000bps) or want to automatically log data from Qwiic sensors, make sure to check out the SparkFun OpenLog Artemis instead.
