Zip it all up my good man...

1000 Lines long! Wont you start struggling to find eeprom for a program that size!

Skynet here we come.

Try zipping it up if the problem persists, we can try and figure it out

First up.. Post *all* your code. It'll make it easier to identify the problem..


Secondly. What's the purpose of "POWERCELL2_ON;" .... You can't do that.

If it's an enumeration or defined int then you need to assign it to something.

varx = POWERCELL2_ON;

or POWERCELL2_ON();

Post your compiler error...

A couple of high level limitations:

Speed: Servos arn't fast...

Control: It's hard to control the servos. You dont actually know where the servo is. It'll be a case of gestimating travel.

Hey guys,

At the moment I'm working on an aspect of a larger project and I'm trying to construct a tracker - something which can essentually follow a moving object. "The fish following the finger" trick you tried as a kid would be the closest idea.

So far my test setup is pretty basic. Couple of servos hooked up to a TLC5940 and a URM37 providing the distance measurement.

Over 180 degrees it takes a reading and simply chooses the closest measurement.

You can check out the concept here (mp4 video or .rar)

[edit] with laser (everyone loves lasers right?)


Anywho, I've been searching around and I've not actually seen any examples. I know people have done something similar for nerf guns and various other turrets. Does anyone have any handy links?

Hey Follower, without the original code the post wouldn't have made sense anyway.

I thought it better to highlight the problem I had rather than leave some confusing post up .


For the complete and correct code see here

Fixed

I think you need to show us your demo sketch that's failing to compile as well.

--Phil.

Hey Phil, The code is *seriously* simple. Nothing more than firing the constructor and requesting begin

#include <URMSerial.h>

URMSerial urm

void setup() {
  Serial.begin(9600);                  // Sets the baud rate to 9600
  urm.begin(2,3,9600);
//urm.requestMeasurement();
  Serial.print("Hey");
  delay(200); //Give sensor some time to start up --Added By crystal  from Singapo, Thanks Crystal.
}

void loop()
{
  /*urm.requestMeaurement();
  bool flag = true;
  while(flag)
  {
    if(urm.hasReading())
    {
      Serial.println(urm.getDistance());
    }
  }
*/
}

@mikalhart

Ah thanks a lot, I forgot to de-reference serial (my C++ is VERY rusty, .NET and Java have spoiled me!

I haddent thought of deriving from SS, that may be a good idea considering the URM has a bunch of additional functions you may want to manually request.

At the moment, I want to brush up on my C++ and then I'll focus on the elegance and performance.


How would you suggest initalising that command, seems odd considering you can't initalise in the header.

Oh final node: what library is "delay" in. stdlib?

All sorted...

Will be releaseing the library soon[ish]

For others:
The AVR C++ libraries dont actually support new or delete operators implicitly. If you want to do

Foo bar = new Foo();

You actually have to write the object so it includes an associated function which mallocs or deletes the required memory.

<< Learnt that the hard way

In addition to "Coding Badly"'s comment... It's down to the way web-servers can host multiple sites on a single web-server. They use a technique called "Virtual hosts", as he pointed out if you pass a hostname to the server it'll serve the associated site you're after.

A web browser will do something like this:
Find IP address for www.arduino.cc. Resolves to: 216.38.50.214
Request 216.38.50.214 including header www.arduino.cc
Server recieves request. Notices header, returns associated site.

Hope that clears up the "why"

Hey guys, great work!

Can I make a simple suggestion. For my library I had to create a branch of your library to support dynamic instancing (AVR-GCC doesn't support the new operator implicity?!). This support can be added in about 4 lines (download the library to see).

Throwing that in would be really useful for devs like myself. Cheers

That's very interesting!

That could be useful for testing circuits when you need to generate a sinewave...

I wonder if I could use this for a DC-AC inverter? I'm using a 555 timer at the moment but I'm struggling finding the perfect frequency

Hmm, Unless someone took it off it should still be there. A little hidden maybe

Hmm, you shouldn't see a crash at 85F, there could be a fault. I'll take a look when I get a chance.

You shouldn't need to use begin more than once

Sadly I cannot edit old posts. If you take a look at the web page you'll notice the library has been upgraded many times of the last few months. Each version has a change log so you can see what has been upgraded since.

Worth a look over, I hope the Arduino guys can sort the forum. Sorry for the confusion