Let's Make Robots!

New to robotics and need help.

I have never made a single robot before but I have done a fair amount of research and want to create an obstacle avoiding robot! I want to use the arduino uno r3 for the brain! Anyone know of a guide to build in a fairly inexpensive or arround $50 to $60 way sense this will be my first robot?

Wanted: 12V Batteries

Does anyone know where I can get some 12V rechargeble batteries for robots, I wanted about 2 or 3 for a robot that I plan to build. I would prefer them to be LiPo over the big bulky black ones but I will take what I can get.

 

I will post what I have later on today when I get home.

 

 

 

Fuzzy Logic Controller

Hello Everybody

 

I want to design a Fuzzy logic controller to control two  DC motors of Rover robot  , actually I made a simulation for the controller in matlab/simulink and it worked successfully , now I want to design that controller in real world by using Arduino Uno board , actually I converted the MATLAB Fuzzy Inference System FIS to Arduino C by Converter in the "www.makeproto.com" website .

 

Now for example if one of rules base of fuzzy controller is 

 

Which is the best windows PC programming language for the following Robotics project?

Hi,

I am actually very new to the robotics field. I am trying to build an equipment. I was hoping if someone would be able to give me a few advices on the project. 

The current way in which we are planning to connect the hardwares together is as follows

Stepper Motor, RVIT, Foot Switch ----> Arduino ---- > (via USB) PC 

Weighing Machine ----- > (via USB) PC

Camera ----- > (via USB) PC

Speaker ----- > (via USB) PC

Looking for a custom built inspection robot

Hello to all the community,

I'm looking for a micro TIR (tactical inspection robot) either tracked or wheeled but tall about 1,7 cm , wifi controlled by pc or android tablet and with cctv camera.

Arduino I2C multi-master hardware fault

A couple of my projects recently rely on I2C to connect multiple Arduino compatible controllers. These projects have 3 or more ATmega8A or 328P processors that work as both I2C master and I2C slave.

My ULTRASONIC (HC SR04) sensor is giving large negative values

I bought it and it was workin gfine with the code and after inserting  it in my project , when i checked it shows large negative values, I tired changing pins , but it doesnt work shows values like 3315,3325 random numbers 

I dont know whether there is a problem with my sensor or my code is wrong. Really worried please help guys.

 


CODE

 

#define trigpin 3

#define echopin 2

void setup()

{

  Serial.begin(9600);

Need putting on the right path

Hello all, First post so.... nice ta meet cha.

im fairly new to robotics iv built a couple of things in the past but have stuck with primarily mechanical robotics (not sure if thats the right term) rather than ones which require any processor other than my own brain. in all honesty im not even sure if they classify as robots.

Need putting on the right path

Hello all, First post so.... nice ta meet cha.

im fairly new to robotics iv built a couple of things in the past but have stuck with primarily mechanical robotics (not sure if thats the right term) rather than ones which require any processor other than my own brain. in all honesty im not even sure if they classify as robots.

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Is my design stable?

I made a design for a robot in sketchup. I made it like something that is two wheeled and without any castor wheel.

Wanted something like this : http://www.pololu.com/product/189

I have a little concept on mechanics so don't know weather the design will be stable or not. Any suggestions on making it any better?

 

About HC-05

i got two hc-05 to control my robot with 

but i cant realy seem to be able to connect the arduino with it!

i wrote a simple code about getting the chars i type on the computer to send it to the arduino and from the arduino to the module and then gets the respone back from the module to the computer

but i tried many times to connect it with it and it didnt seem to workout

the rx of the module is 3.3 level so i made a voltage divider with 3 10k R but how many times i try it doesnt work

Which MOSFET to use for battery voltage measurement?

Hello all,

I'm currently building a buoy with a string of sensors that measures temperatures at different dephts. I'll be making a blog or Something Else later.

The thing is, I want to measure the voltage of the battery (Li-Po) to be able to predict when it needs to be charged since the system will operate "out-there-in-the-middle-of-nowhere".

Raspberry Pi Camera (How To: Stream)

Hello There LMR. I bought a raspberry pi camera and i make some test with it to see if it work and it works fine . Now i have a question how can i stream with it on the net or localy (what is more easy) and what programs i have to install on my raspberry. I also check on the net but i can't find all the info i need. If someone know please tell me!

Programing for begginers

Hi All,

        Over the last few months I have finished building the Rover Explorer, I used the sample program from Oddbot, and have sorted out some of the misstakes I made wiring it all up.

Adding bot description with links

info panelhi! I'm new here.
How i can add a description with links on my robot page like that in the image?
Like app controlled with "arduino uno", "RN42" and "HC06"

robotmake one motion (it can shake hands)

I HAVE PROJECT TO MAKE ROBOT THAT WHEN YOU TOUCH ITS HAND IT MAKE SHAKING MOTION LIKE HUMANS

SO MAY I KNOW WHAT TOOL I AM GOING TO NEED

AND HOW TO CONNECT IT ELECTRIC CIRCUT (SPECIALLY MAKE THE MOTOR REVERSE ITS DIRECTION AFTER SPECIFIC TIME ).

I HAVE BOUGHT (24 VOLTS MOTOR ,SENSOR,2xBATTARIES)

-THANKS :)

 

NEW Channel Snap Mounts!

The Channel Snap Mount A provides a quick and simple way to attach various Actobotics parts to your structure.

3D Printer - What To Look For?

So I've been doing a bit of looking around, as a 3D printer might be on the cards for purchase soon.

To save myself a many hundred dollar mistake... can anyone recommend what to look for in a printer? Kit construction is fine, but I'm also seeing some $600 - $1000 dollar ones on eBay that look pretty good for a first time printer.

Main applications would be small custom parts for robotics.

Thanks for any opinions.