II'm using a Uno board, and a DFRobot L298 shield, to power 2 Tamiya motors. I'm using a standard 9V battery, (6LR61), connected to Power in of DFRobot and Power of Uno Board. I can see Uno running, due to the leds on card, with expected behaviour. However, it does not activate the motors. The ground of both cards are connected, and when I connect the USB to Uno, it drives the motors. I measured the Vin of Arduino, which shows 4.8 ~4.9V. Any Idea about what is going on? It's my first Arduino project, so sorry if it's a stupid question.
Thanks in advance,