MIlXyK59z

USB card reader based on L827L

Overview

This is a USB2.0 card reader based on L827L. WP is a write protection switch. Short circuit can remove the write protection.
The reading and writing speed is fast, and the BOOM list is also attached. Everything can be purchased at Lichuang Mall, but l827l is often out of stock. . .
The PCB board is as follows
! [IMG_20200831_121356.jpg]

After the welding is completed:
![IMG_20200831_133052.jpg]

has been tested. Both the TF card and SD card can be read and written, and no operation is required. After the USB is plugged in, if it is normal The blue light will turn on when power is on, and the red light will flash during transmission
! [IMG_20200831_133000.jpg]

The speed when writing data is about 10MB/S! [QQ screenshot 20200831133731.png]

Design Files

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