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1  Topics / Robotics / Re: which servo would be suitable on: February 03, 2013, 03:28:21 pm
again thanks for the the great replies much appreciated
2  Topics / Robotics / Re: which servo would be suitable on: January 30, 2013, 03:18:18 pm
Wow great ideas thank you very much! got plenty to think about. and thanks for the link I will check them out now.

Many Thanks
3  Topics / Robotics / which servo would be suitable on: January 29, 2013, 04:25:10 pm
Hi I have never used a servo before but I am very interested in getting some and trying to eventually make a biped robot (long way off I am sure).
As my funds are limited i don't want to just buy the cheapest weakest ones around only to need more to buy more expensive more suitable ones later.
Im thinking a biped no more than a foot tall, made out of something light weight. Any questions or ideas very much appreciated.

cheers
4  Using Arduino / Motors, Mechanics, and Power / Re: slowing an arduino controlled light seeking RC car? on: July 22, 2012, 06:46:38 am
thank you!

im learning everyday smiley-wink
5  Using Arduino / Motors, Mechanics, and Power / slowing an arduino controlled light seeking RC car? on: July 22, 2012, 05:00:12 am
Hi i have made (have nearly finished) an arduino controlled light seeker, but am having serious problems with the speed of the thing i really want to slow it down. its well to fast to maintain any control (especially on my wooden flooring) could i use resistors on the Volts in? its powered by 4 AA batteries on 1 DC motor rear wheeled drive. it skids and slides light mad. I have thought about small burst but it gets no grip.

i would preper to use some componants rather than go and buy a load of gears.

please be aware im pretty much a noob at this smiley

any help great appreciated
6  Using Arduino / Programming Questions / Re: reading joystick code error on: July 22, 2012, 04:51:44 am
thanks alot. massive help, i am seeing a trend now and fixed the rest of the code. smiley
7  Using Arduino / Programming Questions / Re: reading joystick code error on: July 20, 2012, 04:24:11 pm
After fixing that now i have this part
Code:
serialWrite('J');

producing error code

sketch_jul20a.cpp: In function 'void loop()':
sketch_jul20a:44: error: 'serialWrite' was not declared in this scope

any ideas?
8  Using Arduino / Programming Questions / Re: reading joystick code error on: July 20, 2012, 04:03:17 pm
http://www.arduino.cc/en/Tutorial/JoyStick

here. thanks for replying  smiley
9  Using Arduino / Programming Questions / reading joystick code error on: July 20, 2012, 03:41:53 pm
 
i took this code from the aruino website,

Code:
/* Read Jostick
  * ------------
  *
  * Reads two analog pins that are supposed to be
  * connected to a jostick made of two potentiometers
  *
  * We send three bytes back to the comp: one header and two
  * with data as signed bytes, this will take the form:
  * Jxy\r\n
  *
  * x and y are integers and sent in ASCII
  *
  * http://www.0j0.org | http://arduino.berlios.de
  * copyleft 2005 DojoDave for DojoCorp
  */

 int ledPin = 13;
 int joyPin1 = 0;                 // slider variable connecetd to analog pin 0
 int joyPin2 = 1;                 // slider variable connecetd to analog pin 1
 int value1 = 0;                  // variable to read the value from the analog pin 0
 int value2 = 0;                  // variable to read the value from the analog pin 1

 void setup() {
  pinMode(ledPin, OUTPUT);              // initializes digital pins 0 to 7 as outputs
  beginSerial(9600);
 }

 int treatValue(int data) {
  return (data * 9 / 1024) + 48;
 }

 void loop() {
  // reads the value of the variable resistor
  value1 = analogRead(joyPin1);   
  // this small pause is needed between reading
  // analog pins, otherwise we get the same value twice
  delay(100);  
  // reads the value of the variable resistor
  value2 = analogRead(joyPin2);   

  digitalWrite(ledPin, HIGH);           
  delay(value1);
  digitalWrite(ledPin, LOW);
  delay(value2);
  serialWrite('J');
  serialWrite(treatValue(value1));
  serialWrite(treatValue(value2));
  serialWrite(10);
  serialWrite(13);
 }

and it gives this error code when i try to verify

sketch_jul20a.cpp: In function 'void setup()':
sketch_jul20a:24: error: 'beginSerial' was not declared in this scope
sketch_jul20a.cpp: In function 'void loop()':
sketch_jul20a:44: error: 'serialWrite' was not declared in this scope


can anyone advise me on what i need to do to correct it?

many thanks
10  Using Arduino / Motors, Mechanics, and Power / Re: Looking for beefier vibration motor on: June 03, 2012, 02:07:10 pm
maybe a salvaged mobile phone vibrator?
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