Most of the microcontrollers come with built-in storage. Often such storage capacity proves to be inadequate when it comes to dealing with memory demanding activities such as audio, video, graphics, data logging. For instance, Atmega2560, powering Arduino Mega, has mere 4Kbytes of EEPROM storage and using its 256K flash requires care so that one doesn't end up overwriting the program itself. Having a removable storage option becomes essential in such situations. This small module supporting microSD socket could be an appropriate choice. It can support Micro SD up to 2GB and Micro SDHC up to 32GB. The module has got on board 3.3V voltage regulator enabling it to support both 3.3V and 5V Logic Levels. It works on a power supply of 4.5~5.5V (VCC) and the current rating is 0.2~200mA
Leads: GND, VCC, MISO, MOSI, SCK, CS; SPI standard interface.
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