Stepper Motor Shield for Arduino SKU: DRI0023 - VCC Pin

ferdinandflorida 2016-07-31 21:04:44 14091 Views2 Replies
I just bought the Dual Bipolar Stepper Motor Shield for Arduino SKU: DRI0023. I will attach two stepper motor and want to use a single power supply for both arduino uno and the stepper motor driver. I want to use the "Vin" pin from the arduino as power supply for the stepper motor drivers. But I noticed the "Vin" pin is not present in the shield. I tried to use the "VCC" pin to power the drivers but it does not run the motors. I want to know what the voltage output of the VCC pin in the shield (the vcc pin in the digital io portion) and is the "Vin" not available in the shield?

Thank you to those that will reply.

2016-08-01 19:56:18 Hi,

You can directly lead to two lines from the Vin pin in the sheild, then one can be connected to the external power of controller, the other connnected to the DC input in the sheild, and your external battery's GND to GND in the sheild.

Note: due to the external power range of the controller is 7-12V, your operating valtage of motor requires less than 12V

Hope it will help you. Wendy.Hu

2016-08-01 18:48:30 Hi Wendy.Hu,

Thanks for the reply. Is it safe to tap into the shield where the Vin pin from the arduino is connected to by soldering a wire to it? See image below. I really want to use single power source so I don't have to use external battery for the motors. ferdinandflorida

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