Problems with multi servos programming

Projects Programming
1

Hi everyone, this is my first post here at the forum.

Well let me explain my problem, im building a Quadripod with 8 servos to control the movements
(8x towerpro 9g) an Arduino mega 2560, a sparkfun protoshield (https://www.sparkfun.com/products/7914), in the future i'll use a LiPo battery (7,4 1200mAh), bc of it i build a protection system using relays and 3 LM7805 to reduce the voltage to 5Vcc (mounted as the image) but for now im using a ATX power supply, thoses from the old Pc hahaha, well my problems starts when i try to use more than one servo. for example

#include <Servo.h>
Servo s0;
Servo s1;
Servo s2;
Servo s3;
Servo s4;
Servo s5;
Servo s6;
Servo s7;
void setup(){
Serial.begin(9600);
Serial.write("ok");
s0.attach(8);
s2.attach(9);
pinMode(31,OUTPUT);//K0
pinMode(32,OUTPUT);//K1
pinMode(33,OUTPUT);//K2
}

void loop()
{
digitalWrite(31,HIGH);
digitalWrite(32,HIGH);
digitalWrite(33,HIGH);
s2.write(150);
delay(500);
s2.write(50);

}

on this example I Didn't write any angles for the servo "S0", but even so it starts to move to the same angle that i used for Servo S2, if i attach only the servo S2 he obey the command lines, but if i put any others servos they do only the first line " s2.write(150);"
i put the Ground of the power supply connected to the arduino. on the board i have 3 grounds coming from the ATX connected to the arduino

(image:
https://drive.google.com/open?id=0B1XIQPQFsvR7c0FKOXNFd1ZtREE)

2

board.PNG
board.PNG723×556 199 KB

Can you modify your original post to use code tags? It makes it easier to read and does not change some of the text to smileys.

Also, before you copy your code out of the IDE, hit CTRL T. This autofomats the code.
This snippet:

void loop()
{
  digitalWrite(31, HIGH);
  digitalWrite(32, HIGH);
  digitalWrite(33, HIGH);
  s2.write(150);
  delay(500);
  s2.write(50);
}

shows that you do some digital writes, move a servo to 150 and wait a half second.
You then move the servo to 50, but before it has a chance to move very fat at all (almost zero) the loop start over and you tell the servo to move to 150 again.
It probably looks like it move to 150 and then does nothing.

Did you want a delay after moving it to 50? Try that.

THEN (yes, I am shouting) READ BLINK WITHOUT DELAY
if you are going to be doing much processing and 8 servos, you want to learn to code without using delay().
Read blink without delay. Learn it. Ask questions about it. Then move up and read Robin's several things at the same time

Gosh, I've edited this many times...
Also, when you start adding numbers to the end of variables, it is time to create an array.

3

What are those boxes connected to pins 31, 32, ad 33. It looks like they might be relays but one is controlling power to the Arduino! They don't seem to be connected to Ground anywhere.

It looks like the power jack is being fed with regulated DC. The minimum voltage is close to 7V. What voltage are you providing?