2DOF Arduino miniature motion platform w 2-servos

Hi all, just stumble into x-Sim site by accident very cool stuff.
I'm newbie with minimal electronic experience,since I have seen DERIY-(SATO)'s wiper motor sim, I want to build one.

2dof-wiper-motor-car-simulator-by-deriy-sato-t2405.html#p23635

I am learning Arduino at the moment and have seen jamesdio's 2DOF Arduino miniature motion platform w 2-servos video but with little info, can I ask jamesdio the list of parts and if arduino was used instead of AVR Motion Controller (AMC) by Tronicgr as a controller and then using Tronic's DIY dual Mosfet H-bridge (DSMhb) to connect to the wipermotors.
sorry for the dumb question if asked previously.

If you have minimal electronic experience like I do, then use these http://www.pololu.com/catalog/product/1393 , one per motor.

well gorch not questions are dumb mate, ask away.
Ard code is not ready yet theres a couple of us trying to put one together, i have the ard working my diy guages but havent properly moved on to the motor driver, look at the monster motor driver from sparkfun will supply a steady 20amps odd at 12v for two motors, and if ya know ard then should be easy to put together, i do have a basic code for above but wont release until i have tested it personlly by theory and dummy run, it works just awaiting shield, ordered should arrive by the end of the week.
Bsft suggestions a good one jrks are very easy to setup and get running plus dont underestimate their power because of their size.

Welcome time to start ya own post mate. :thbup:

Thanks all of you guys,
can't wait till you release the arduino sketch when you are ready, but curious how you connect the arduino to the PC so it recognised the effects/force feedback.

http://www.pololu.com/catalog/product/1393
Pololu Jrk Motor Controllers with Feedback is a bit expensive and its more fun making your own via Dual Mosfet H-Bridge by TronicGr
http://www.x-simulator.de/wiki/Dual_Mos ... y_Tronicgr

Also jamesdio's arduino setup is very interesting:
2dof-arduino-miniature-motion-platform-w-2-servos-t3469.html?hilit=jamesdio

good luck on h bridge more likely a hair ripper outer.
Done what james did a while ago easy but getting it to the next step is a big one.
Just like the jrk hooks up via usb and talk to it via uso, easy.

Pozdrav! :hi: Drago mi je da nas ima jos iz Srbije

this how i debugged my dashboard, only thought the ard uses values of 1-127 ????

hello somebody could put a diagram of the servos to the arduino?? and how to configure the x-sim3 with arduino? thank you

Hello people.
I tried to do jamesdio published. code upload it successfully in arduino UNO.
use the profiles published by jamesdio.
my arduino board receiving. So check it to see the LED light data.
but do not move the servo.
only made ​​some erratic movement to change the configuration parameters in the USO
could be the error in the configuration of my x-sim?
please help to set the x-sim

Hello guys,

I would like to thank, the herctrap, juiou and jamesdio, for sharing the code for Arduino. :

It was of great help, to me three days ago was trying in every way to the arduino work in X-sim. Today finally got it.

This is my first step into the world of motion simulators, did it to be able to understand and study the software settings.

The next step is to buy the H bridge, engines, and to upgrade from my cockpit.

Alexandre

Brasil

http://www.youtube.com/watch?v=t0tqYhSx7e8&feature=share&list=UU80j5w--fqiMCZNw2HBTS7Q

Sweet nice effort. :thbup:
I have my bigger model working in new software we are beta testing here.

http://www.youtube.com/watch?v=X5d9hAXoO4o

I can provide all info for it and setup. :thbup:

Such a great prototyping platform, Rob!!

Check this one out guys, a lot better and expandable past 2dof.

viewtopic.php?f=25&t=4600
Thanks Aaron

Hello!
Recently I bought adruino uno and 6 servos.
I tried to modify the sketch for 2 servos.
First I modified the sketch for 4 servos and the controller works fine.
But trying to make a sketch for 6 servos was unsuccessful. ((
Who can explain what is the problem?

4DOF Motion Platform with 4 Servos sketch

Code:

/*
* 4DOF Motion Platform with 4 Servos
* -------------------------------------
* Thanks to herctrap and his source
* http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1280139142
*
* and also thanks to juiou and his source
* http://www.x-simulator.de/forum/arduino-and-x-sim-t2773-30.html
*
* I just combined their sources.
*
*/
#include <Servo.h>
Servo myservo1;
Servo myservo2;
Servo myservo3;
Servo myservo4;

int Degree;
int Gforce = 0;
int Gforce1 = 0;
int Gforce10 = 0;
int Gforce100 = 0;

char kind_of_data;

void setup() {

  //set servo pins
  myservo1.attach(2);
  myservo2.attach(3);
  myservo3.attach(4);
  myservo4.attach(5);

  //align servos center postision
  myservo1.write(90);
  myservo2.write(90);
  myservo3.write(90);
  myservo4.write(90);

  //open serial connection
  Serial.begin(115200);
}

void loop() {

  // wait for serial input (min 3 bytes in buffer)
  while(Serial.available() > 0) {

    kind_of_data = Serial.read(); //string from USO --> L~a01~ R~a02~ F~a03~ B~a04~ 8bit resolution\decimal output
    if(kind_of_data == 'L') {
      Read_Pos(kind_of_data);
    }
    if(kind_of_data == 'R') {
      Read_Pos(kind_of_data);
    }
    if(kind_of_data == 'F') {
      Read_Pos(kind_of_data);
    }
    if(kind_of_data == 'B') {
      Read_Pos(kind_of_data);
    }
  }
}

void Read_Pos(char which_servo){
  delay(2);
  int Gforce100 = Serial.read()- '0';
  delay(2);
  int Gforce10 = Serial.read()- '0';
  delay(2);
  int Gforce1 = Serial.read()- '0';

  //Verifica se e centena dezena ou decimal... =]
  if (Gforce1 < 0) { Gforce = Gforce10 + 10*Gforce100; }
  if (Gforce1 < 0 && Gforce10 < 0) { Gforce = Gforce100; }
  if (Gforce100 < 0) { Gforce = 127; }
  if (Gforce1 >=0 && Gforce10 >= 0 && Gforce100 >= 0) { Gforce = 100 * Gforce100 + 10 * Gforce10 + Gforce1; }

  if (which_servo == 'L') {
    Degree = map(Gforce, 0, 255, 180, 0);
  }
    if (which_servo == 'F') {
    Degree = map(Gforce, 0, 255, 180, 0);
  }
  if (which_servo == 'R') {
    Degree = map(Gforce, 0, 255, 0, 180);
  }
    if (which_servo == 'B') {
    Degree = map(Gforce, 0, 255, 0, 180);
  }


  if (which_servo == 'L') {
    myservo1.write(Degree);
  }
  if (which_servo == 'R' ){
    myservo2.write(Degree);
  }
  if (which_servo == 'F' ){
    myservo3.write(Degree);
  }
  if (which_servo == 'B' ){
    myservo4.write(Degree);
  }
}

6DOF Motion Platform with 6 Servos sketch

Code:

/*
* 6DOF Motion Platform with 6 Servos
* -------------------------------------
* Thanks to herctrap and his source
* http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1280139142
*
* and also thanks to juiou and his source
* http://www.x-simulator.de/forum/arduino-and-x-sim-t2773-30.html
*
* I just combined their sources.
*
*/
#include <Servo.h>
Servo myservo1;
Servo myservo2;
Servo myservo3;
Servo myservo4;
Servo myservo5;
Servo myservo6;

int Degree;
int Gforce = 0;
int Gforce1 = 0;
int Gforce10 = 0;
int Gforce100 = 0;

char kind_of_data;

void setup() {

  //set servo pins
  myservo1.attach(2);
  myservo2.attach(3);
  myservo3.attach(4);
  myservo4.attach(5);
  myservo5.attach(6);
  myservo6.attach(7);

  //align servos center postision
  myservo1.write(90);
  myservo2.write(90);
  myservo3.write(90);
  myservo4.write(90);
  myservo5.write(90);
  myservo6.write(90);

  //open serial connection
  Serial.begin(115200);
}

void loop() {

  // wait for serial input (min 3 bytes in buffer)
  while(Serial.available() > 0) {

    kind_of_data = Serial.read(); //string from USO --> L~a01~ R~a02~ F~a03~ B~a04~ A~a05~ C~a06~ 8bit resolution\decimal output
    if(kind_of_data == 'L') {
      Read_Pos(kind_of_data);
    }
    if(kind_of_data == 'R') {
      Read_Pos(kind_of_data);
    }
    if(kind_of_data == 'F') {
      Read_Pos(kind_of_data);
    }
    if(kind_of_data == 'B') {
      Read_Pos(kind_of_data);
    }

    if(kind_of_data == 'A') {
      Read_Pos(kind_of_data);
    }

    if(kind_of_data == 'C') {
      Read_Pos(kind_of_data);
    }
  }
}

void Read_Pos(char which_servo){
  delay(2);
  int Gforce100 = Serial.read()- '0';
  delay(2);
  int Gforce10 = Serial.read()- '0';
  delay(2);
  int Gforce1 = Serial.read()- '0';

  //Verifica se e centena dezena ou decimal... =]
  if (Gforce1 < 0) { Gforce = Gforce10 + 10*Gforce100; }
  if (Gforce1 < 0 && Gforce10 < 0) { Gforce = Gforce100; }
  if (Gforce100 < 0) { Gforce = 127; }
  if (Gforce1 >=0 && Gforce10 >= 0 && Gforce100 >= 0) { Gforce = 100 * Gforce100 + 10 * Gforce10 + Gforce1; }

  if (which_servo == 'L') {
    Degree = map(Gforce, 0, 255, 180, 0);
  }
  if (which_servo == 'F') {
    Degree = map(Gforce, 0, 255, 180, 0);
  }
  if (which_servo == 'R') {
    Degree = map(Gforce, 0, 255, 0, 180);
  }
  if (which_servo == 'B') {
    Degree = map(Gforce, 0, 255, 0, 180);
  }
  if (which_servo == 'A') {
    Degree = map(Gforce, 0, 255, 180, 0);
  }
  if (which_servo == 'C') {
    Degree = map(Gforce, 0, 255, 0, 180);
  }


  if (which_servo == 'L') {
    myservo1.write(Degree);
  }
  if (which_servo == 'R' ) {
    myservo2.write(Degree);
  }
  if (which_servo == 'F' ) {
    myservo3.write(Degree);
  }
  if (which_servo == 'B' ) {
    myservo4.write(Degree);
  }

  if (which_servo == 'A' ){
    myservo5.write(Degree);
  }
  if (which_servo == 'C' ) {
    myservo6.write(Degree);
  }
}

The 5 and 6 servos does not hold in a neutral position.
All the while shaking , if I write in the USO settings ( L ~ a01 ~ R ~ a02 ~ F ~ a03 ~ B ~ a04 ~ A ~ a05 ~ C ~ a06 ~ )
If removed (C ~ a06 ~), the 5 servo start works normally , the 6 servo is disabled.

Servos 1-5 work fine, but servo 6 does not? The code looks fine, so no reason I can see that it would not work. Do you have video?
How are you testing? actual game output or using the output testing where you move the sliders?

Yes,1-5 servos work fine.
I move the sliders "Calibration affsets of the axis" in x-sim converter.

Can you explain how the servos are wired to the arduino? In the video it looks like you have the 2 servos connected together, and a single pin sending the signal to both? It is hard to see exactly in the video. The crazy servo movement to me looks like the ground connection is not properly shared between arduino and servo. Can you explain or show exactly how you have them wired? As an easy and quick test, maybe try hooking each servo to its own pin on the arduino. Also, if not already, make sure you have a jumper connecting the ground from the arduino to the battery powering the servos.

The 5th servo connect to the 6 pin of adruino, 6th servo connect to the 7 pin.
Ground from the power supply is connected to pin GND of arduino.
If i write in USO ( L ~ a01 ~ R ~ a02 ~ F ~ a03 ~ B ~ a04 ~ A ~ a05 ~ ), the 5th servo work fine.
If in USO ( L ~ a01 ~ R ~ a02 ~ F ~ a03 ~ B ~ a04 ~ C ~ a06 ~ ), the 6th servo work fine.
If I write in the USO settings ( L ~ a01 ~ R ~ a02 ~ F ~ a03 ~ B ~ a04 ~ A ~ a05 ~ C ~ a06 ~ ), the 6 servo begin shaking.
If I write so .(A ~ a05 ~ C ~ a06 ~ L ~ a01 ~ R ~ a02 ~ F ~ a03 ~ B ~ a04 ~ ) Then starts to shake fourth servo.
Thus, as she begins to behave servo which is written at the end of line.
Thank you for trying to help me!

@JBoogie , keep in mind the demo in the video is NOT using Simtools software.
Good Job @DERIY , several guys have done this already with the Simtools software.

Use SimTools mate, way better motion. Ask @Historiker his already modified my Ard code for running 6 servos successfully, and looked to have really good motion too. This old code is way too slow to run several servos in time with the motion, hence I developed a better one and another member made it go even better.