code

Cheers everyone,

Dropping this link just incase anyone is interested.  For what its worth, I have no professional affiliation with MathWorks outside that of using the software as a student.

Quoted from site -- " In this webinar we feature the development and implementation of a field-oriented controller for a permanent magnet synchronous machine (PMSM) using a real-time microcontroller. The workflow will show you how to:

copied this code from http://www.jeremyblum.com/2011/07/31/tutorial-13-for-arduino-liquid-crystal-displays/ but when i try to compile i get a error at void set up {}( function definition dose not declare parameters) i highlighted the part that gets this error ... but i can figure out whats wrong ...

/*

*RS: Pin 2

*EN: Pin 3

*D4: Pin 4

*D5: Pin 5

*D6: Pin 6

I've made a development bot named Arcee as some of you know, now i've added an AmandaLDR to it for obstacle avoiding.The LEDs on the sensor are very bright and blue in colour. The bot won't use a servo to pan the sensor, it'll simply rotate itself.

The problem is, I don't think it's working. But the sensor works, oddly enough. It can turn an LED on at a threshold. But once implemented into an obstacle avoidance code it dosen't seem to work.

The code is attached below.

So I have a Sharp IR sensor connected to my Arduino, feeding to my pc the values of its analog input, via the Serial connection.

To do this, I'm using the Serial.write() command. I want to be able to read these values into processing, but when I use the Serial.read() command in Processing, the values it picks up are nothing like what the Arduino Serial monitor is giving me, and are unaffected by the IR sensor.

What am I doing wrong, and how can I get processing to read these values from the IR sensor?

Any help is appreciated.

#include <IRremote.h>

#define m1F 6

#define m1R 7

#define m2F 5

#define m2R 8

long F = 1979994096;

long L = 1979994056;

long R = 1979994048;

long B = 1979994076;

long S = 1979994080;

int RECV_PIN = 4;

IRrecv irrecv(RECV_PIN);

decode_results results;

void setup()

{

  pinMode(13, OUTPUT);

  pinMode(m1F, OUTPUT);

  pinMode(m1R, OUTPUT);

  pinMode(m2F, OUTPUT);

It is working now, thanks to everyone who helped me out!!!

I am trying to make my servo work,but if I start my arduino, with code and servo attached, it just goes to one position and stays there twitching. Can someone help me?

second try

I have just written my first code in Arduino IDE. The code should make a servo move to 180 degrees wait one second and then move back to 0 degrees and repeat.

Here it is :

#include <Servo.h>

Servo servo1;

int posR = 179;

int posL = 0;

void setup()

{

  servo1.attach(9);

}

void loop()

{  

  { 

     servo1.write(posR);

     delay(1000);

  }

  {

G'day Everyone,

I have been designing products for DAGU for over 2 years now. During this time I have always tried to provide technical support and help in general here on LMR. I will still continue to do so but previously I had trouble uploading manuals because of upload limits.

I have (that is relative because I have not yet ordered my first parts from Robotshop) a PING ultrasonic sensor. I'll be having an arduino mini - though I'll no doubt buy something bigger after - and I wonder if I can efficiently make my upcoming rover (differentially driven, nothing special really) map it's surrounding area using a grid. Is it possible or will I run short on memory with the arduino mini? And more importantly, I need help with the code (I have 0 experience with code, though I have enough theory I guess...). Any suggestions are appreciated.

Hi all,

I've been busy over the past few days studying the Picaxe manuals and trying to understand the coding. I keep reading about how easy it is and it's even called basic, but my problem is, I don't understand any of it.

My electrical and mechanical skills are enough to get me by, but this programming makes no sense to me what so ever.

I've Googled in an attemp to find online tutorials, that doesn't seem to help either.

Can anyone explain how they learned the Picaxe basic coding? That might help me.

Thanks,

The Bromz.

Honeywell's datasheet on the HMC6343 compass states that tilt compensation is made using data from a built-in three axis accelerometer. I thought that a cheaper three-axis magnetometer- accelerometer combination is much more reasonable for small scale projects, so my question is: What kind of calculations do I need to perform to get a decent degree of accuracy?

Hi LMRtians

After doing some programming for my first robot I was wondering (maybe because of my computer science background) if someone uses some kind of notation or software development methods at the hour of programming the robot.
 
When you are programming simple things like the Start Here Robot (http://letsmakerobots.com/start) it is easy to program a sequence of actions:

While
  Condition 1: gosub Action 1
  Condition 2: gosub Action 2
End

When I joined LMR I had just written my first picaxe program. After 16 months I have finally crossed over to Arduino. The biggest problem I found was that all the commands were not in one neat package like the picaxe manuals (Manual 2 in particular).

I'm somewhat new to arduino and finally found out about libraries.  Unfortunately I have looked for instructions on how to create one and how to upload an existing library.  So if someone could give me step-by-step instructions on how to get this library i have here sitting on my desktop to something i can use in code. (please dummy-down the instructions).

It would also be helpful if someone could provide me with a small sample code for a robot that uses Ping)))

Can we get everyone who has got their code to successfully run to post their files here? Ive been looking all over the site for a central area for code, and I cannot find one. If there is one, point me in that direction, if not, lets all start posting here!

Try not to paste lines of code here, lets keep it clean. uploaded files only please!

Format:

Name of code,

What it's for

File (zip or IDE compatible file)

What do you guys think?

I am currently using a arduino duemilanove, and it is awesome. I have been playing around with it for a couple of days now, and I really like it. Anyways I figured it was time to start to building a robot. I decided to start with the motors. For the motor control I decided to use guibot's tutorial. It worked fine, but the motors only traveled in one direction. Because I wanted the motors to also travel in reverse too I decided to experiment with my own code (on only one motor) that looks something like this:

i dont know what's wrong with my code!

i made a simple code that should make my robot simply avoid walls, stuff etc.

i placed SC-QR-1 (my robot's name) upside-down and pressed [F5] (the "run" shortcut) and watched him move his cute little robot legs..     WTF?

the new code seemed to work untill the walk part was over and he started to turn..    ..left.        and then again left and again and again..    etc.

he is suposed to keep walking!!!

#include <Servo.h>

Servo myservoL;
Servo myservoR;
int myservo = 2;
int myAngle;
int pulseWidth;

void setup()
{
  pinMode(myservo, OUTPUT);
  myservoL.attach(9);
  myservoR.attach(10);
}

void servoPulse(int myservo, int myAngle)
{
  pulseWidth = (myAngle *10) + 600;
  digitalWrite(myservo, HIGH);
  delayMicroseconds(pulseWidth);
  digitalWrite(myservo, LOW);
}

Ok, so I finally got all my gear set up to build robot numero uno, but Im goin friggin nuts trying to control my continuous rotation servos from parallax. Im using a picaxe 18x to produce the code, but no matter what pulsout or servo commands I use, my servo's only go clockwise.I NEED them to be able to go counterclockwise  for my differential drive train to work right. I have read every post on LMR about servos and have tried a lot. I have read their parallax data sheet and that they should respond based upon the pulse width, but no go.