I have been ripping my hair off with a combination of
2x UNO
2x XBEEshields
2x Series1 Xbees with whip-antenna.
I can make a simple "write 1 to serial and led lights up on other arduino"
So the other UNO with xbee works just fine. And the other UNO works too as without uC.
If i have uC in its place on UNO it works fine without XBEE. But when i place XBEE on its shield, it starts to blink pin13led.
And as you can see the led doesnt blink when i power it without the xbee. So is this a defective atmega328 or?
code: void setup(){Serial.begin(9600);}void loop(){ Serial.print("1"); d - Pastebin.com
Xbee installed, 3 blinks. Without xbee its not blinking like it should. 3 times when booting up. Sketch works just fine without xbee. With xbee pc cant find arduino.