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Velosats
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

Re: Velosats

by animefruit on Fri Mar 27, 2020 2:24 pm

I just wanted to check if more voltage would work better.But I will take your advice and not do that.I will use a capacitor like you said.So if voltage does not mean much power, than is there a thing like the the Metro Mini or Feather that powers things up really well, or does the Metro Mini And Frather do that already?

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Re: Velosats

by adafruit_support_bill on Sat Mar 28, 2020 6:45 am

is there a thing like the the Metro Mini or Feather that powers things up really well

You shouldn't pick a processor for its ability to power motors. Processors are not power supplies. The power comes from your battery.

The voltage regulator on the processor board is there to make sure that the power is clean and steady for the processor - and maybe some external circuitry like sensors and such. Using the output of the voltage regulator to power things like motors messes everything up with current spikes and brush noise. In addition to putting unnecessary load on the regulator, all that noise can cause the processor to malfunction.

Motors should take their power directly from the battery.

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Re: Velosats

by animefruit on Sat Mar 28, 2020 12:57 pm

How do I power my servo motor or servo motors directly from the battery?

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Re: Velosats

by adafruit_support_bill on Sat Mar 28, 2020 2:07 pm

If you are using a separate battery for the servos, connect the red wire to the positive terminal and the black wire to the negative terminal. Then connect a wire from the negative terminal to the GND on the processor.

If you are using a Feather and want to use one battery to power both processor and servos, you can connect the red wire to the BAT pin.
That connects you to the battery and bypasses the regulator.

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Re: Velosats

by animefruit on Sat Mar 28, 2020 2:16 pm

What do you mean about negative and positive terminals.Do you mean the lanes of negative and positive on the breadboard?And if I am connecting a servo motor separately, doesn’t that mean that I will need another thing of battery’s for everything else?

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Re: Velosats

by adafruit_support_bill on Sat Mar 28, 2020 3:10 pm

What do you mean about negative and positive terminals.

Every battery has a negative terminal (usually marked '-') and a positive terminal (usually marked '+').

And if I am connecting a servo motor separately, doesn’t that mean that I will need another thing of battery’s for everything else?

Yes. The other devices need power too.

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Re: Velosats

by animefruit on Sat Mar 28, 2020 4:47 pm

How do I connect the other devices to a battery thing ?

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Re: Velosats

by adafruit_support_bill on Sat Mar 28, 2020 6:36 pm

What other devices do you have?

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Re: Velosats

by animefruit on Sun Mar 29, 2020 3:22 am

So I have the lcd and 50 other sensors.So how should I connect those separately from my servo motor or servo motors?

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Re: Velosats

by adafruit_support_bill on Sun Mar 29, 2020 6:34 am

So I have the lcd and 50 other sensors.

That is a lot to ask from a microprocessor on-board voltage regulator. With that many sensors connected, you may need an external regulated supply.

To start with, you should figure out how much power they all need.

The datasheets for your sensors will include information about current requirements.
For the servos, you can estimate 400mA + 10ma * the torque in oz-in.

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Re: Velosats

by animefruit on Sun Mar 29, 2020 9:57 am

How do I set up an external regulated supply?

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Re: Velosats

by adafruit_support_bill on Sun Mar 29, 2020 10:02 am

You connect V+ and GND to devices you will be powering with it. And connect GND to the GND on your processor for a signal reference.

But first you need to figure out what your power requirements are.

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Re: Velosats

by animefruit on Sun Mar 29, 2020 10:07 am

So what is this external supply I am connecting?Us it a battery thing?

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Re: Velosats

by adafruit_support_bill on Sun Mar 29, 2020 10:31 am

That depends on the power requirements of your system. You need to figure out what voltages and current you need to power your 50 sensors plus displays and servos before you can choose an appropriate power source.

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Re: Velosats

by animefruit on Sun Mar 29, 2020 10:34 am

How do I figure out the appropriate power source I will need?

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Please be positive and constructive with your questions and comments.