wireless card reader

A wireless SD and TF card reader based on the ESP12 module. Just plug the device with the memory card to be read into any USB port that can provide DC5V. It will create a wireless card reader installed on WiFi. FTP server, through which we can perform read and write operations on the memory card. The source project comes from //www.hackster.io/Neutrino-1///www.hackster.io/Neutrino-1/wireless-sd-card-reader-esp8266-de7f07 . This project is only drawn through LCEDA according to the description of the source project article . Get the appropriate PCB schematics and circuits.

start

Download Wireless_SD.zip in the attachment and unzip it. Use Arduino IDE (tested on 1.8.12) to open Wireless_SD.ino in the directory. Related dependency files will be opened together. Due to size and cost reasons, there is no peripheral programming circuit, so the firmware needs to be burned before soldering. Refer to the wiring diagram below, use any USB-TTL burner to connect to the ESP12 module, click the upload button of the Arduino IDE to burn to the ESP12 module, and then solder the ESP12 module to the PCB.

Development Board Manager (Arduino’s confusing translation)

• ESP-Core - by Ivan Grokhotkov

Instructions

Insert the SD/TF memory card into the card slot and plug it into any USB port that provides DC5V to power on. Next, please follow the steps below to transfer files:

-> 连接一个SSID为 'SDcard Reader' 的WiFi，密码是 'OSHWHubNB'，有些系统会弹窗提示该连接无网络，是正常现象，请勿断开连接。

-> 打开FTP客户端，安卓端建议：AndFTP、ES文件浏览器，Windows端建议：WinScp、FileZilla Client。

-> 配置FTP的主机地址为 '192.168.12.7'，端口为 21。

-> 用户名与密码均为 'esp8266'。

-> 连接即可。

OSHWHubNB!

File transfer test

The measured speed is stable at around 1Mb/s

Open source agreement

GPL 3.0

Acknowledgments

• An open source project from Neutrino-1 .
• Arduino FTP library ported by David Paiva for ESP8266/ESP32.

The source code is open source at  //github.com/Giftia/Wireless_SD .

(The ESP12 module sold at Anxin a few days ago can come in handy)