Modul Micro SD Card Kartu SPI interface

– Support Micro SD card, Micro SDHC card (high speed card)
– Onboard level conversion circuit, that is, the interface level can be 5V or 3.3V
– The power supply is 4.5V ~ 5.5V, onboard 3.3V voltage regulator circuit
– The communication interface is a standard SPI interface
– 4 M2 screw positioning holes for easy installation Control interface : a total of 6 pins (GND, VCC, MISO, MOSI, SCK, CS), GND is the ground, VCC is the power supply, MISO, MOSI, SCK are the SPI bus, CS is the chip select signal pin; 3.3V voltage stabilizing circuit : 3.3V output from LDO voltage stabilizing power supply for level conversion chip and Micro SD card; Level conversion circuit : the signal in the direction of the Micro SD card is converted to 3.3V, and the MISO signal in the direction of the MicroSD card in the direction of the control interface is also converted to 3.3V, which can be read by the general AVR microcontroller system;