Hello everyone, I would like to connect a micro controller to a small dc electric motor using a l293d chip. I see that Vss is where I would connect 5V and Vs is where I would connect an external power source for example a 9V battery. If I'm powering my micro controller using a dc power adapter which can output a maximum of 1 amp, can I power Vss from the same power source or must I have a separate power source for Vs?