I am a newbee.. Currently want to control DC Motors on/off states based on activity from motion sensors.
I am thinking about buying a shift out register that will allow the digital output of the below schematic to reach the transister so that the DC motor can be powered on or off.
Also thinking to pull in analog sensor data via shift in register. So that the data reaches the microcontroller serially. Does this make sense?
Is there a specific shift in/out register I should be using for this application?