In case anyone is interested, I have been developing a Java API for interacting with XBee radios. So far it can program your XBee, either through API mode or transparent and send and receive packets. It doesn’t yet receive I/O samples from a remote XBee but that is next on my list. The source code may be downloaded at http://www.tireswing.com/xbee-api-0.1.zip</del> http://code.google.com/p/xbee-api/ (it is packaged as an Eclipse project). I have been testing it with XBees connected to unchipped Arduinos by way of the Arduino XBee shield.
java has no unsigned 8, 16, or 32 bit types?
stevech:
java has no unsigned 8, 16, or 32 bit types?
No, I’m afraid not. If you need unsigned values, you need to use a signed type that can hold the unsigned value (e.g., a short to hold an unsigned byte). Why no unsigned types? Best to ask James Gosling.
I think the general consensus is to use short for 1 byte, int for up to 3 bytes, long for up to 7 bytes etc. Wasteful? maybe but still effective.
FYI, I have moved the Java XBee API to Google Code http://code.google.com/p/xbee-api/
Thanks for the update. I’ll have to give the API a whirl sometime.
In case anyone is interested, I have released a new version of my API that supports the XBee ZNet (ZigBee) radios. Aside from the mesh networking, a notable feature of the ZNet radios is Remote AT. With Remote AT you can send most any AT Command to a remote radio (e.g. turn on/off I/O pin, query pin status, configure etc.). This feature is not present in the 802.15.4 XBees.