Level conversion circuit: Micro SD card into the direction of signals into 3.3V, MicroSD card toward the direction of the control interface MISO signal is also converted to 3.3V, general AVR microcontroller system can read the signal;
Micro SD card connector: yes since the bomb deck for easy card insertion and removal.
Positioning holes: 4 M2 screws positioning hole diameter of 2.2mm, easy to install positioning, to achieve inter-module combination;
Parameters:
Name:Micro SD card mini TF card reader module
Level conversion circuit board can interface: 5V or 3.3V
Power supply:4.5V - 5.5V, 3.3V voltage regulator circuit board