help

I have recently received my order from ebay. A L293D Motor Controller for my first robot. I read the datasheet and other guides but i can't figure out how to use it, please help! I didnt order 2 so i only have 1, if it fries, i cant get another one or i have to make one. :(

 

I have an old droid eris and a RAD 2.0, I want to somehow conenct the droid to the motherboard of the RAD by soldering the end of it's usb connection cable but I am not sure where to do this. I have searched the web for a schematic but have been unable to find one. Any advice or resources are welcome. 

Hi LMR! I got the idea to make a little robot, with 4 wheels that van drive around. Ok, what's cool about that... so I decided to add in a camera and a wireless connection to a pc. I'm a total beginner to this BTW, but I'll figure out how to program it. The overall idea is to make a robot I can control from my pc, that transmits It's video signal to my pc so I can se where it is. My question is, which components would he suitable for my project? I was thinking about getting a wi-fi connection to work with my pc, will that work?

Ok

So i have a IR detector and it is hooked up to an arduino i have programed it with the help of this blog http://www.arcfn.com/2009/08/multi-protocol-infrared-remote-library.html i am doing the example that is named " How to recieve" 

Problem: whenever i click a button on my remote the number 0 apeers on the serial monitor. What does that mean?

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.

Update:

Well, now that I have time for this robot I've discovered that the SSC32 supports at maximum 9 volts and my PSU is 12 volts. The website for robotshop says 6v to 12 volts but the documentation says 7.2v. Help me please

Cheers

▬▬▬▬▬

Hi, I'm working on a robotic arm, but I don't know what power source purchase. My servos are the problem:

Myself and a local member of a hackerspace in Detroit recently started a new website devoted to robotics in Detroit. Right now the site is brand new, with really no content. So what I'm asking you to do is to sign up on the site, create a couple posts, etc just to generate some content. I'm not asking you to leave LMR, just check the site out (whats there anyways) and if you're proficient at drupal send me a PM, so you can help out the site too! Thanks.

UPDATE:

New battery = No results.

What's wrong?. Arduino energy from USB, Shield energy from 7.2v and code that works on other robot. Tested with another motor just in case and zero, nothing, blank, null, etc.

I'm looking to build an uber-cheap robot arm, with the purpose of just sitting on my desk and picking up whatever i want it to... Probably stick with a basic control (independent forward, off, reverse switches on each motor) setup. What i'm trying to figure out is, I'm planning on using a standard 3 wire (forward, ground, reverse) style motor similar to that found in a cheap rc car, yet i can't find any places to buy them, except in the cars. any sugestions?

I just bought an Arduino 2560 Board, I was using it with windows 7 and it was working perfectly.

The problem is that now the Arduino is not detected by any of the operative systems, I am currently testing with Mac Snow Leopard, Linux and windows 7. The reset botton is working, and when I plug it to the computer the Power LED turns on......

Any suggestions on how to fix this? 

 

THANKS!

Hello I have just purchased the start here kit and everything has bin going well up to the point of instaling the driver for the usb cable. I was able to get the programing editor no problem, but the driver for the usb is not working I have bin fidling with it for 2 days but with no sucsses. I cannot figure out how to contact picaxe about the driver problem so i was wondering if anyone has any ideas or ways on how to get the cable to work (for the record my pc runs on vista premium)? any help would be appreciated. Thanks

Hmm, I decided to come here on the off chance some one might be able to give me some advice.

I wouldn't say I'm an "absolute" beginner as I do have some experience with robotics, but its only been from kits, I haven't built and programmed something from scratch yet. Over the years I have collecteda great deal of items which I feel may be useful to create some form of robot, but its hard to know exactly where to start. Here are the details as follows:

I am thinking of building a robot and I need help choosing a microcontroller and motor driver(s). I was thinking of something like the Arduino, Axon II, Motoruino, or Orangutan SVP-328. Something with a USB programming interface would be nice. The robot I intend on making should have about drive 3+ servos, 2 motors/motor driver (maybe with encoders), two ultrasonic rangefinders, LCD, and maybe some other sensors (buttons, gyros, etc). Any other microcontrollers you could suggest would be helpful. 

ok i got this assignemt today to do for tomorrow i have done the first question but i dont understand the second one can anyone help me out i would love it.

Thanks a lot for the support you people showed last time. I want to make a circuit which has 2 LEDs and a normal on/off switch (at least) and other components as required. The circuit should function like this- When i turn the switch on for the 1st time, LED 1 glows but LED 2 remains switched off. When i turn the switch off for the 1st time, both LED 1 and 2 remain off. When i turn the switch on for the 2nd time, LED 2 glows but LED 1 remains switched off. When i turn the switch off for the 2nd time, both LED 1 and 2 remain off. Please provide me with a circuit diagarm for the same and

hello guys I am totally new to the world of robotics but am trying to build my 1st robo. Please tell me how to make a circuit which can distinguish between 3 given sounds clips on the basis of frequency, amplitude or the sound itself prefarably without using a PIC because i dont know much programming. Thanks.

hello guys I am totally new to the world of robotics but am trying to build my 1st robo. Please tell me how to make a circuit which can distinguish between 3 given sounds clips on the basis of frequency, amplitude or the sound itself prefarably without using a PIC because i dont know much programming. Thanks.

WWWWOOOOHHHHHOOOOOO!

Bought one of these bad boys from -Adafruit- yesterday!

USB native hehe! but not here yet. (of couse used USPS first class)

need a bit o' help though. i want to get those .HEX files after Arduino compiles them. I am on a mac. where are those hex files?

tried searching  but, no luck probaly in .tmp folder :p.

Any help would appreciated!

 

 

 

 

I've found an awesome rotary encoder (I believe it was the smallest on Rootshop) but I have no idea how to use it? I believe there's an input, a ground and a signal pin, but I don't know how to configure it or anything. I'm going to be using it with an arduino.

I've digged the web and have found no documentation. Just sayin

Thanks ;)

Hi LMR! in need some help with a ir opponent detector. how do you make 38khz signal from a picaxe?

thanks!

Okay, so I have finally finished my BFB Rapman. Never mind that it took 6 months longer then expected, or that I had to shell out more then 700 dollars that a skilled person would not. Pass over the fact that my blood, sweat, tears, and more blood went into this thing. It works, and I am happy. But, I'm encountering a huge warping problem due to the acrylic surface that the rapid prototyping machine is building upon.

As anyone who has seen any of my earlier posts may have noticed, I am very problem-prone. I am, however certain that all my problems branch from my inexperience, could anyone with a bit of spare time look over the circuit and code I have below and spot the obvious mistake that must be there (missing capacitor, resistor, etc.)

this circuit is loaded with (note that there is a buton in-between the 5v and pin6)
this should make the light be on when I press the buton if I am to believe the simulation, intead it is always on.

I am a noob so I am sorry if  this is obvious.

I am using a picaxe 20m and having an issue, when I am checking if a switch is high or low (if pin7 = 1 then ...), on all of my inputs except pin7, me touching or being near the wire is enough to flash it between 1 and 0. it is finding enough voltage from my hand to trigger, it will do this even on the simplest codes, any help would be well appreciated.

Thanks in advance
Shane

Hello everyone!

this is my first post so im pretty excited haha.

i want to know how to create something so i can shoot high speed photography.

an example of what i would like to do is of a water droplet hitting a bowl of water and snapping a picture when the "crown" (part of the water which gets drawn up from the result of disrupting the water bowl".

i was thinking about a laser activated "flash" which fires the flash of the camera after the beam is broken, but it should have a delay so i can fine tune it and get the perfect image.

I'm making a sort of alternate version of yellow drum machine. It uses the sharp proximity sensor. I was wondering how I would make the robot transition from navigating to playing the drums on the next object it encounters. I was thinking a switch, but that seems to weird. I want it to switch by itself. 

I wander how fritsl got his drum machine to transition.

What I intend to do is create a wireless link between my robot and my laptop, for remote serial programming, and remote control.

I posess a PICAXE 28X1 project board that i wish to connect with an XBee module.

From what I've seen in http://www.rev-ed.co.uk/docs/axe210.pdf an AXE210 is suggested. On page 9 however, we find that the XBee is only connected to the AXE by three pins: two inputs and one output.

I was wondering ; can you upgrade start here robot to a line follower and switch between line following and the normal mode by clicking/switchng a button! Cause i want it to go from my kitchen to my sofa so my mom can place a can of coce on it and press the button and volia! I heard of the new picaxe upgrade that has a remote control! that would help :)