Hey, I have a doubt. I have a l293d motor shield and I want to connect 4 dc motors (the yellow cheap ones that come in arduino car packs), 2 servos, 2 hc-SR04 and a bluetooth module (the SR04 and the bluetooth module would be connected to the analog pins). I was wondering how many AA batteries could I use without damaging the board or the arduino so the motors are faster. Can I use up to 8?? 6?? or should I stick to four?