SparkFun Qwiic OpenLog

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The SparkFun Qwiic OpenLog is the smarter and better looking cousin to the extremely popular

port. The Qwiic OpenLog can store, or “log”, huge amounts of serial data and act as a black box of

sorts to store all the data that your project generates, for scientific or debugging purposes. Utilizing

our handy Qwiic system, no soldering is required to connect it to the rest of your system. However,

we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard.

Like its predecessor, the SparkFun Qwiic OpenLog runs off of an onboard ATmega328, running at

16MHz thanks to the onboard resonator. The ATmega328 has been sure to feature the Optiboot

bootloader loaded, which allows the OpenLog to be compatible with the “Arduino Uno” board setting

in the Arduino IDE. It is important to be aware that the Qwiic OpenLog draws approximately 2mA-

6mA in idle (nothing to record) mode, however, during a full record the OpenLog can draw 20mA to

23mA depending on the microSD card being used.