A while ago I've begun with programming in Fantom and recently I wanted to try out a different kind of project. I wanted to write a program that could read data from my electricity meter at home through the Meter-Bus protocol.
I did some digging and eventually stumbled upon the java MBus (jmbus) library. Immediately I was thinking about using it through JavaFFI in Fantom, but I eventually ran into a small problem; the jmbus library requires you (as far as I currently know) to add a commandline argument which directs to the JNI library and it requires you to install a separate native RXTX library.
This was solved rather quickly, but I was wondering.. Would it be possible to communicate with a serial port through Fantom directly and therefore not needing to add a commandline argument? That would only leave the problem of interpreting the meter-bus protocol.
If anyone knows if it would be possible directly through Fantom, please let me know!
As you elude to, Fantom is essentially a Java program, so if you're looking for a native Fantom driver to talk to the serial port then you're actually looking for a Java driver.
Java itself isn't as low level to talk directly to IO ports - that job is usually handed off to native C code, which is then wrapped up in a Java interface / native class.
Given you've already found a Java library that talks to the serial port, I think your actual question is, "Is there any other Java library that talks the serial port?"
Fantom and Java hobbyists don't usually talk to serial ports, so I think you'll have more luck posting on the SkySpark forum (as I'm also assuming your question is SkySpark related).
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