Hi All,
I like to read/write files from a USB Pendrive, instead of from an SD card. Now I'm trying this with SUNROM 1307 - Serial UART to USB Pen Drive. It's detecting the drive usually. But, I'm confusing that, will it work properly by using only one RX & TX pins?
Can anyone help me with this, please?
From a brief look at your link it seems that the adapter card has a program on it that takes instructions such as DIR and TYPE, If you can send those commands with a terminal program you should be able to do so with any Arduino. For testing a Mega would be best because you can connect the adapter to one of the spare Serial ports (1,2 or 3) and leave Serial free for talking to your PC.
It also seems that the adapter sends the file content 50 bytes at a time so that will comfortably fit in the Arduino's 64 byte serial input buffer.
You may find some ideas in Serial Input Basics - simple reliable ways to receive data.
...R