Arduino Mini Usb Serial Adapter
The Arduino mini USB adapter converts a USB connection into 5 volt TX and RX that you can connect straight to the Arduino Mini or other microcontrollers, allowing them to talk to the computer. It is based on theFT232RL chip from FTDI ( are included with the Arduino software). You can find your board warranty informations. Getting Started You can find in the all the information you need to configure your board, use the Arduino Software (IDE), and start tinker with coding and electronics. On the Software. On Projects. On the Product itself through.
Usb Serial Adapter Driver
I am trying to use a cheap Arduino Nano clone from China as an USB - Serial adapter. To achieve this, I connect a jumper between Reset and GND pins on the ICSP pin headers on the Nano to disable the Atmega chip and then connect TX and RX pins together. I then try to send information over terminal (gtkterm or Arduino IDE terminal), but I do not receive anything back. The RX and TX pins on the Nano do flash when I try to send information, so something is happening inside. I tried uploading a simple sketch, which prints a string to the Serial port, remove the jumper to enable the Atmega chip, and it does indeed print it, so the board is not bricked. I have tried this with an original Arduino Uno, doing everything exactly the same, and it works like a charm. My guess is that the CH340G converter behave somewhat differently than FTDI converters.
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Serial To Usb Adapter Driver
I have found English datasheet for the CH340 converter, but I was unable to find an answer in it. Note: I'm using Linux. Looking over ArduinoISP code, I thought of something which is deceptively easy. Would it be enough if I checked a button state in the loop portion to switch between avrisp function and simply ignoring available serial information? That way if button is pressed, it would program the standalone chip, if not, it would relay the serial information from standalone to USB? But then I guess the RX / TX lines connected to standalone would interfere with flashing?
I would need to disconnect those lines before flashing?