★ Power supply is 4.5V-5.5V, Onboard 3.3V voltage stabilizing circuit.
★ On-board level conversion circuit, that means the interface level is 5V or 3.3V.
★ 3.3V regulator circuit LDO regulator output 3.3V as level converter chip, Micro SD card supply.
★ SCM system can be completed within a file MicroSD card .Support Micro SD Card, Micro SDHC card (high speed card).
★ The module (MicroSD Card Adapter) is a Micro SD card reader module for reading and writing through the file system and the SPI interface driver.