Will a bigger servo work with Ardunio UNO ?

Other Hardware Motors, Mechanics, Power and CNC
1

hi all
i have the ardunio starter kit
i was using the small servo that comes with the kit
then it stopped working

today i brought a bigger one but it does have the same pins
the person who sold it to me don't know Ardunio but the servo is 4.8 volt
i has wondering will this servo work with the Ardunio does it need any resistors or any thing so it work with the Ardunio ?
will it work exactly like the small one ?

here is the full species

i haven't attached it to the Arduino until now i'm afraid i burn the Ardunio
note: i'm using the usb cable connected to a laptop for powering the Ardunio

here is the servo pics:



2

Well you mustn't power the servo from the Arduino in the first place: it must have its own power as shown in zoomkat's renowned pic attached. Only the signal is from the Ardiono, not the power, and they whole shebang has common grouind.

But what do you mean that it doesn't have the same pins?

servo-wire.jpg

3

JimboZA:
Well you mustn't power the servo from the Arduino in the first place: it must have its own power as shown in zoomkat's renowned pic attached. Only the signal is from the Ardiono, not the power, and they whole shebang has common grouind.

But what do you mean that it doesn't have the same pins?

thanks for fast replay dude
how much the ardunio provide as a voltage ?
will the ardunio uno burn if i connected this servo without external power ?
here is the sepecies

it uses 4.8 volt i must have ans external power source 6 volt ?
can i use batteries ?

what can i use for providing the power to the servo

4

how much the ardunio provide as a voltage ?

The arduino does not power the servo it only controls it. It produces a 5V signal.

it uses 4.8 volt i must have ans external power source 6 volt ?

No if it is 4.8V then you must power it with 4.8V but it will probably work just as well with 5V.

what can i use for providing the power to the servo

A regulated power supply.

5

The Arduino provides the right voltage of 5V, most servos are 4.8 to 6V. But it's the current that's the problem: Arduino can't provide enough.

Batteries should be ok- one of those pack things that takes 4xAA for example. That servo is rated 4.8 to 7.2 btw.

6

JimboZA:
The Arduino provides the right voltage of 5V, most servos are 4.8 to 6V. But it's the current that's the problem: Arduino can't provide enough.

Batteries should be ok- one of those pack things that takes 4xAA for example. That servo is rated 4.8 to 7.2 btw.

the servo have 3 clolored pins (Brown-red-orange)
which one must be the one i connact to the battries ?
the battry have 2 sides cathode and anode how can i connect them to one pin tape ?
will asingle 9v battery works ?

7

fraizor:
the servo have 3 clolored pins (Brown-red-orange)
which one must be the one i connact to the battries ?

Red +, brown -, orange is the control signal

the battry have 2 sides cathode and anode how can i connect them to one pin tape ?

Sorry I don't understand that one

will asingle 9v battery works ?

Not when it needs 4.8- 7.2, no

8

JimboZA:

fraizor:
the servo have 3 clolored pins (Brown-red-orange)
which one must be the one i connact to the battries ?

Red +, brown -, orange is the control signal

the battry have 2 sides cathode and anode how can i connect them to one pin tape ?

Sorry I don't understand that one

will asingle 9v battery works ?

Not when it needs 4.8- 7.2, no

i'm i doing it right ?
this is 4 AA battery pack 4.8 volt
how can i know the battery cathode and anode ?
will it matter if i switched the cathode and anode ?
connected the orange servo pin to pin 9 one the ardunio
is it now safe to turn on the ardunio

http://s10.postimg.org/74omd0qop/IMG_20140209_200527.jpg

i really appreciate your help bro

9

how can i know the battery cathode and anode ?

Red to red and black to black: red is +ve

will it matter if i switched the cathode and anode ?

Yes, but I don't know exactly what harm it will do

EDIT.... don't forget to join the battery / servo -ve to an Arduino GND. You don't show that in your photo. See my attachment a few posts earlier.

10

JimboZA:

how can i know the battery cathode and anode ?

Red to red and black to black: red is +ve

will it matter if i switched the cathode and anode ?

Yes, but I don't know exactly what harm it will do

EDIT.... don't forget to join the battery / servo -ve to an Arduino GND. You don't show that in your photo. See my attachment a few posts earlier.

is it now right ?
what do u mean by ve ?

http://s24.postimg.org/9d2cage8l/IMG_20140209_205711.jpg
im sorry to bother u with to much questions but i'm new to electronics and this good stuff

11

what do u mean by ve ?

The battery has two terminals +ve short for positive and -ve short for negative a battery does not have an anode and cathode.

is it now right ?

Well no it is not connected to the battery, there is no signal connected to the arduino.

12

Grumpy_Mike:

what do u mean by ve ?

The battery has two terminals +ve short for positive and -ve short for negative a battery does not have an anode and cathode.

is it now right ?

Well no it is not connected to the battery, there is no signal connected to the arduino.

yes man i will connect it to the battery but i'm making sure that every thing is in the right place before i connect it so i dont burn any thing

if i connected the battery will every thing be OK ?

13

Yep that looks fine. You can take off that red wire from Arduino to the breadboard, it doesn't do anything.

"ve" is just part of "+ve" short for positive....

@G_M it looks to me that the green wire goes from the servo signal wire to Arduino, approx pin 9 or thereabouts. And I'm pretty sure OP just left battery unplugged until he's sure it's good to go.

14

JimboZA:
Yep that looks fine. You can take off that red wire from Arduino to the breadboard, it doesn't do anything.

"ve" is just part of "+ve" short for positive....

@G_M it looks to me that the green wire goes from the servo signal wire to Arduino, approx pin 9 or thereabouts. And I'm pretty sure OP just left battery unplugged until he's sure it's good to go.

it didn't worked (the servo didn't turned) when i used the battery pack maybe it is damaged (i have not used it from years)
this is the code i used

#include <Servo.h>

Servo myservo;

void setup(){
  myservo.attach(9);
  myservo.write( 0);
}

void loop(){
}

can i use this 5v charger to power my servo ?

http://s29.postimg.org/6m1un656v/IMG_20140209_215550.jpg

15

Well maybe the servo was at 0 anyway, then you wouldn't see it move. That to keep it moving.sketch only moves to 0 in setup() and there is no code in loop()

Use the servo sweep sketch in the IDE: File > Examples > Servo > Sweep

Do you have a voltmeter to check the battery?

I can't read the label on the charger: you need about 1A. What does the label say?

16

JimboZA:
Well maybe the servo was at 0 anyway, then you wouldn't see it move. That to keep it moving.sketch only moves to 0 in setup() and there is no code in loop()

Use the servo sweep sketch in the IDE: File > Examples > Servo > Sweep

Do you have a voltmeter to check the battery?

I can't read the label on the charger: you need about 1A. What does the label say?

i tried the servo sweep still not working

the charger label:
power supply
model:sincode-0018
input:ac100-240 50/60hz
output:dc5v=500ma+-5%

17

Well it's wise to allow about 1A for a servo, and that device only supplies 0.5A. But I guess if you run it with no load it might be ok.

Do you have a meter to check the battery? Or a torch bulb you could connect and see if it lights?

18

JimboZA:
Well it's wise to allow about 1A for a servo, and that device only supplies 0.5A. But I guess if you run it with no load it might be ok.

Do you have a meter to check the battery? Or a torch bulb you could connect and see if it lights?

when i connected the charger with the servo the servo had not runned like a normal motor it just stayed in his place but making sounds and moving a very little in his place it was as if it trying to turn but third is something that is Preventing it from turning

is that normal ?

19

One of the thing that really pisses people off here is if you keep ignoring questions you are asked.
We are trying to help but we can not if you will not answer questions, so for the last time:-

Do you have a meter to check the battery?