The Qwiic OpenLog also supports clock stretching, which means it performs even better than the

original and will record data up to 20,000 bytes per second at 400kHz. As the receive buffer fills up

this OpenLog will hold the clock line, letting the master know that it is busy. Once the Qwiic OpenLog

is finished with a task, it releases the clock thus allowing the data to continue flowing without

corruption.

Note: The SparkFun Qwiic OpenLog supports 64MB to 32GB microSD cards in both FAT16 and

FAT32 formats.

that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm

pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized

connections mean you can’t hook it up wrong.

 

 

                                          https://www.sparkfun.com/products/15164/2‐11‐19