It is a very affordable and useful product with which you can read and write to micro SD cards via SPI protocol. You can directly insert micro SD memory cards into the module, which you can easily use on many microcontroller platforms, especially Arduino.
Information storage, uploading the read information to the memory card. It can be used in many applications such as recording constantly received information. There is also an internal 3.3V voltage regulator on the board. In this way, it can be easily used with 3.3V and 5V systems.
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