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Topic: Will Uno run on 12v? (Read 3 times) previous topic - next topic

dreken

Thank you all!  This is a knowledge that could be expensive to learn the hard way!  :)

Kevin Kibbe

If your stepper motor draws a lot of current, and many do, you might cause the arduino to crash when the voltage drops. And the voltage will drop, it is just a matter of how much. Some things that will help a lot is keeping the power leads short and twisting them together if you can. Use power leads that are as thick as practical. Leads that are too thing will increase the voltage drop. Adding capacitors across the input to the arduino will also help.

If your stepper motor is large and you have a heavy load on it it will make this problem worse.

Kevin

smeezekitty


If your stepper motor draws a lot of current, and many do, you might cause the arduino to crash when the voltage drops. And the voltage will drop, it is just a matter of how much. Some things that will help a lot is keeping the power leads short and twisting them together if you can. Use power leads that are as thick as practical. Leads that are too thing will increase the voltage drop. Adding capacitors across the input to the arduino will also help.

If your stepper motor is large and you have a heavy load on it it will make this problem worse.

Kevin

Except for the Arduino to crash/reset the stepper would have to pull the 12v supply down to 6v which is unlikely.
Avoid throwing electronics out as you or someone else might need them for parts or use.
Solid state rectifiers are the only REAL rectifiers.
Resistors for LEDS!

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