circuit

Other Hardware General Electronics
1

so is this a good circuit? or are there unnecessary things or am i missing things?
(to be clear i want to power a arduino micro 2 servo's and 12 led's does not have to be from 1 battery)

from: Sem
any help would be appreciated.

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2

No.
Motors should not be on Vcc. They need their own power rail.

3

can you please show me a example?

4

Google will show you examples, but beware of "Instuctables" -- most are junk.

5

dutch4years:
can you please show me a example?

Let Jeremy show you -see 7.38 mins into this video

6

dutch4years:
so is this a good circuit? or are there unnecessary things or am i missing things?
(to be clear i want to power a arduino micro 2 servo's and 12 led's does not have to be from 1 battery)

from: Sem
any help would be appreciated.

Is your supply really a 9V battery? If so its competely inadequate for powering servos. If it isn't really
a 9V battery you've demonstrated yet again that fritzing is usually confusing and unhelpful compared to
a proper hand drawn circuit. 2 servos suggests needing a supply of perhaps 2A capability.

Sharing 5V between servos and the microcontroller is not a good idea - keep logic chips' supply voltage
clean and free from drop-outs and inductive spikes and they tend to work reliably rather than reseting
and crashing out.

7

so can anyone maybe draw me a circuit or show me a circuit becous i don't realy get it....
sorry for the trouble

8

All you need to do, is remove the +5v wire between the Arduino and the Regulator.

Then take the battery +9v and connect it to the Arduinos Vin pin.

The Ardunio then uses its own onboard regulator and leaves just the servo/s on the 5v regulaltor.

However a few things to note /check -

Your diagram shows +5v and 0v being fed to pins 5 and 6, think you need to check that they are correct.

Though it will work, as already said, if using a small 9v battery it will not last long, because the one shown does not have much power and the regulators use a good bit of current themselves, so using a cheap Buck regulator and bigger 9v battery will be better.

9

Budget 1A per servo - let me repeat: a 9V battery is not adequate at all for even one servo.
The typical 5V regulator is 1A rated. That means you should provide a 5V 2A supply direct for the
servos, or a 8V or so 2A supply to two individual 5V regulators, each feeding one of the servos.

A good power source for servos is an RC "receiver pack" which are 6V packs designed to drive
RC receivers and several servos.