You can run Java SE Embedded or Java ME on a Raspberry Pi, but the Arduino is a bit too constrained to run Java directly. However, with the help of serial port communication software, you can communicate with and control an Arduino from Java running on another computer. All the colors of Java and so on. This card has a CH340 USB-to-serial chip. Have you found other issue using the original Arduino programmer.

This tutorial of Robo India explains how to install driver of CH340 USB to serial converter.

1. Introduction:

Download windows driver from here .

Java Rxtx Usb Serial Ch340 Software Download

2. Automatic installation:

If you are connected to internet, just plug CH340 USB to serial converter to your computer, windows will detect and download driver. You will see following message on successful installation. CH340 is installed on comport 23.

3. Manual installation

Follow following instruction to manually install driver of CH340.

3.1 Download driver from the link provided above in this tutorial.

Usb Serial Ch340 Windows 10

3.2 Go to stat menu.

3.3 Right click on My Computer.

3.5 Click on Properties

Usb Serial Ch340 Driver Windows 7

3.6 Select Device Manager form left control panel

3.7 Expand USB options available

3.8 Right click on CH340

3.9 Select Update driver

3.10 Select browse option

3.11 Extract the downloaded folder, downloaded in step 3.1

3.12 locate step 3.10 browse to the extracted folder

3.13 follow the further instruction of your computer

3.14 your CH340 device will be installed

3.15 Note down the comport allotted to your device.

If you have any query please write us at support@roboindia.com

Thanks and Regards
Content Development Team
Robo India
http://roboindia.com

Hi, Timo -

That's an interesting set of circumstances there. The symptoms point to the ADTPro server not really being able to open (or not being pointed at) the correct serial port. How sure are you that the COM port it's using is the correct one (and is the same one that you use your terminal program with)?

To answer the later questions - I'm not sure if you'd see TX activity without a connection or not. I don't have a breakout box myself, so I don't know what the electrical characteristics are offhand. And during initial bootstrapping, the Apple /// doesn't send data back to the host until the first chunk has been received and is executing:
http://adtpro.com/protocol.html#SOS

Java Rxtx Usb Serial Ch340 Software Download

There's not an easy way to send the raw files themselves - and even if you did, you'd still need the basic functions of the ADTPro server to do anything useful from there anyway. So the thing to do is figure out why it's not really connecting to the serial port (or the serial port you think it's connecting to).

Usb To Serial Ch340 Driver Download

Also - what's the chipset in your USB adapter? Hopefully not Prolific or one of its cheap clones.