For some reason I just cannot get any data from my APM2.5 via xbee. Never had any troubles with APM2.
I am connected to the "new wireless port" on APM2.5 via a UartSBee breakout. The two XBee's connect to each other, no problem, however I am receiving zero data from APM. I have scoped the line and it is sending but the TX LED (or RX) is not flashing. I have also tried using a XbeeExplorer breakout, here the LED flashes saying APM is sending out, however nothing is coming through XBee to the GCS (or hyperterminal).
I have tried the usual things of TX&RX being the wrong way around to no avail, and also a different XBee module. Works fine when I USB both of them to a computer on the same breakout boards.
I'm quite puzzled by this. My only possible thinking is that the logic level is not high enough to register as a "1", but I thought APM was 5v and Xbee 3v3 so surely there shouldn't be a problem through the level shifts on the breakout?
I'm currently using the AutoMUX UART0 port on APM2.5, will try switching to UART3 tomorrow but I'm doubtful this will work after scoping the line & seeing the data flowing fine.
Anyone else had similar problems with APM2.5? Any solutions or suggestions?