Hi New APM 2, New 900mhz Xbee kit and some issues.
This has never worked yet so I need some advice please.
The APM2 (as far as I know), everything works and it communicates with the mission planner with a USB cable, gps, elevel all data seems good..
When I connect the Xbee to the laptop the power on led is on and the Tx flashes 1 / second.
When I connect the xbee to the APM2 All of the leds are on (power , RSSI , di,do. ) nothing flashes
If I remove the xbees from the adapters and reverse them I get the same results. I think the Xbees are OK, they are not bricked as I can check them with the CTU program and the ID numbers and baud rates are all correct. both modules report nothing recieved in CTU test mode. It appears they transmit but nothing comes back. I suspect the airplane adapter or its link to the APM2 but which one.?
Help please.
2nd question, Where can I find a pinout for the USB to 6 pin header on the xbee adapter so I can test the adapter?
Thank you
Dwgsparky
Replies
Thank you Barry! You saved my day after struggeling arround with my xbee modules! thanks fpr your pictures!!!!!
Regards,
Boris
HI Vernon
in my case this is a new setup and new xbees and adapters, if the adapter does not work then I will discuss this with the supplier for replacement before I start making mods like this. , If they normally work then why would we have to modify a new board.?
looks like another week with no data . just when I was getting somewhere.
I made this same mistake. There are two solder jumper spots on the bottom side of the APM 2.0 for the "autoMUX"
What that means is that reading the top silkscreen on the top side of the board, the serial UART output can either be port 0 or port 2. By default, my board did not have solder connecting to port to either "jumper" on the bottom side of the APM 2.0.
You need to connect it to port 0 so on both sets of pads, solder a short between the middle pad and the inner pad towards the middle of the board that has silkscreened UART 0. Again, both the TX and RX side need connected. Basically, the UART 0/2 is not connected to anything so you Xbee only has power by default (that's the way both of my boards shipped). While at it, I also had to solder jumper the PPM<- to the PPM -> pads near the inputs as well.
Alternatively, you can also solder in pins on the long edge of the board to the port UART 0 as well and just use those. That UART 0 connection is next to the ICSP for the mega (the larger 6 pin 2x3).