Arduino Nano Serial To Usb
I'm trying to use V-USB library to emulate a keyboard using Arduino Nano but because of precaution, I don't want to use it's built-in USB port.
8 thoughts on “ 3 Ways to Use Arduino as USB Serial Adapter Converter ” Duinosoar 4th January 2019 at 8:29 pm. You could just program the Arduino with the default “empty” sketch (i.e. Empty setup and loop functions). Since all digital pins default to input mode after a reset, they will remain as input, since the empty sketch will not change the mode of the pins. FT232R USB UART Arduino Nano: hallo. Good night everyone.today, i bought arduino nano v3.0 (clone), but i have problem. My computer always detect 'FT232R USB UART' and arduino Ide cant detect this board. Okey i have tutor for solve this problem. Thanks for your great post. I followed your tutorial and connect Raspberry Pi and Arduino Nano V3 with a micro USB cable, and it works fine! However I meet a problem after rebooting the RPi: the serial port of Arduino is not listed when I try “ls /dev/tty.”. I pressed the reset button on Arduino board several times, and it didn’t help.
My idea is to add another USB port so I cant power my device with the new USB port and use free digital pins as input/output of the new USB serial port in V-USB project.
What circuit I should use and how to add extra USB port to Arduino Nano.
2 Answers
Arduino Nano Serial To Usb Adapter
USB is deceptively simple. The underlying protocol is very complex. So a complete answer to your question requires some USB background.
USB is divided into 2 types. USB Hosts and USB Devices. We are not concerned about USB Hosts here. USB Devices only need to know about their own functions / features. If they are a serial port device, like the FTDI chip on the Arduino Nano, they only need to 'speak' basic USB protocol and the serial CDC USB protocol. If the USB Device was a keyboard, it only needs to know the basic USB protocol and the HID USB protocol.
In order to offer up a USB port the Arduino Nano uses an FTDI chip FT232RL. This chip supports a Serial Port USB Device. It does not appear to support HID USB Devices. So your decision to use V-USB is necessary not because of power but because the Arduino Nano's built in USB port supports a protocol other than USB CDC.
What circuit I should use and how to add extra USB port to Arduino Nano.
The circuit suggested is on the V-USB web page appears to contain the necessary information:
Of course you will have to do some research into V-USB software to see which are the appropriate pins to use on your Arduino Nano.
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st2000st2000Arduino Nano Usb
You can use a USB host mini module for the Arduino NANO and the USB Host Library r2.0
You can implement a keyboard with this..