Hi...
I picked up a Parallax XBee wireless kit (32440-RT) from Radio Shack thinking I would be able to use it to send sketches to my Uno R3. I'm having problems.
The hookup I have is 4 wires:
| Uno | XBee |
|---|---|
| Rx | Dout |
| Tx | Din |
| +5v | VDD |
| GND | VSS |
There's a sketch running on the Uno that spits out some data to the serial port. This shows up going across the XBee network just fine. I next try and push a new sketch to the Uno and this is where it fails. I've tried hitting reset just as I started pushing and that was no help. I see "Done uploading" on the Arduino console but I also see the following:
Binary sketch size: 1026 bytes (of a 32256 byte maximum)
avrdude: stk500_getsync(): not in sync: resp 0x00
In troubleshooting I hooked up the logic analyzer. I can see the previously loaded sketch data heading out to the XBee - same shows up in the console. So things look good this way. But on the Rx pin it is a constant high except when I push a new sketch. At that point I see three low pulses 1 second apart.
I don't know if I'm missing some other connection on the XBee but I've just about run out of ideas. I can't find a tutorial that makes use of the parallax adapter boards. It all started out looking pretty good but now I've reached a dead end and need some guidance.
