Hello! i'm making a robot, based on arduino and xbee. I'm using an md23 board to control 2 motors. Now, until some days ago everything was working fine. Now, after a couple of minute of operation, the arduino board seems to stop responding completely. The leds on the XBee are ok (they flash when receiving something), but the led on the arduino (which is programmed to flash too) stops. I thought it could be becouse of lack of current, but i'm using a big lead-acid battery that should supply plenty of power. I tried to put a capacitor in the way but it doesn't help. Also, the board stops randomly, even if the robot is just running smoothly (no motor stalls or such).
Could it be that the vibration are the cause ? the chassis vibrate a lot..
Any help is appreciated :)