I have what seems to be a fully functional ArduIMU v2. I can program it via Arduino IDE and see the output on the serial console. Everything seems to be working quite fine but there is a peculiarity that I have not been able to reconcile.
When I measure the resistance between VCC (5V) and GND (ground) I get a reading of 34 Ohms... in fact, the multi-meter catalogs it as a short circuit. Furthermore, if I measure the current consumption of the board, once it finishes the ground start routine, I measure roughly 145mA. The peculiarity here is that if there WAS a short, I would expect 147mA due to the short in addition to the power consumption of the 3.3 regulator, sensors, ATMega, etc. yet all I measure is 145mA.
Does anybody know why there's I'm reading such a low resistance between the power rails, yet have what seems to be a functional board?