I had purchased items like single channel relay and two channel relay from element14 for using with arduino uno now I need help by a typical circuit diagram for making the connections to arduino to control a simple dc motor connected to 12v battery and arduino connected to pc usb port
there are three pins on relay i.e for gnd,vcc and input on Left side of relay and three connectors on the right side for NO(normally open), common, NC(normally connected)
I have a DC motor which can work with the battery with two terminals for 6V or 12v power output
I connected
GND to GND on arduino
VCC to 6V battery one lead(+ side)
motor connected between common and NC
input pin coonected to GPIO pin 11 of arduino ( programmed to switch on and off in loop)
the question is where to connect other end (-ve)of battery ?
may be typical circuit diagram can help me to make the motor switch on/off controlled by the program loaded into arduino
