turn on and off arduino and motorshields

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JulieNoa
 
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turn on and off arduino and motorshields

Post by JulieNoa »

I am using an arduino uno and several adafruit motorshields. The motorshields control some stepper motors and have their own power supply. All functions well. My question is on plugging and unplugging the power supplies: should this be done in any specific order? Like plugging in motor shields first, and plugging out the arduino first? To protect the arduinos against current peaks etc. Or is there no danger for this and can I simply plug and unplug everything at the same time?

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adafruit_support_bill
 
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Re: turn on and off arduino and motorshields

Post by adafruit_support_bill »

Power to the motors should be the last thing connected on power-up and the first thing to be disconnected when powering down. This avoids the danger of uncontrolled motor movement when the Arduino and shield electronics are in an uncertain state during power-up or power-down.

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JulieNoa
 
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Re: turn on and off arduino and motorshields

Post by JulieNoa »

Thanks a lot for your quick reply. I did exactly the opposite till now, so I will reverse the order.

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