Let's Make Robots!

Arduino Controlled Brushless R/C Vehicle?

Hello,

I would like to be able to use an Arduino and control an r/c car

Goal:  When I reset the Arduino, the car moves forward a small distance, then pause for "n" number of seconds and then loop for "x" number of times

I have a good grasp of r/c and a little experience w/Arduinos and I'd like to be able to vary the forward progress of the car - move it just an inch or so each time the program loops - steering isn't important (right now)

Thank you

:)

Battery Power - Where Do I Find Answers?

 

Hello

I need to use one battery to power 4 items, each is identical and requires 5V DC and can use up to 2.5 amps under full load.  I would like to use the lightest battery that would provide about 8 minutes of use for all four of these devices.

I would like to have all four of these powered by one 5V battery but how do I calculate the amps &/or discharge rate for this power requirement?

Where do I go to find the answers to these questions?

Thank you

:)

 

 

SOLD

 

SOLD!

 

 

My Delta Robot

Hello,

I built this robot and using the Arduino, I created a sketch that makes the end effector go up and down.

I'd like to make the end effector do more than that, of course, so does anyone know what I need to do next in order to control the end effector in the same ways that others are doing?

I have a functional copy of Processing, if that helps.

Thank you!

Finishing My Printrbot

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I received the parts so I could finish my Printrbot and it's nearing completion . . . woo hoo!  :)

 

 

 

 

 

 

Comments About the Book "Making Things Move"

 

Hello,


As someone who has been a contributing author for a fairly popular CAD book, and who has been a technical writer, I am no longer as critical as I used to be before I added authorship to my repertoire of career achievements.

Taking Sound Volume and Doing Something With It

Hello

I want to take sound from my car speakers and use my 512 LED panel to display stuff when music is playing.

I'm guessing I will need a microphone connected to an analog input with my Arduino Uno?

I have been fairly successful programming the light matrix.

Thanks very much

 

 

Repairing Ends of Threaded Rods

Hello

#1 --> I need to cut some 1/4", 5/16", & 3/8" threaded rods

When I do this, the ends get a bit messed up where I cut them

What's the best way to repair the ends - should I bite the bullet and get a tap & die set?

Previously, I've been placing nuts on either side of where I would be cutting, and then using the nuts as a way to sort of repair the threads but I would like a better way.

 

#2 --> Also, what's the preferred method of cutting these rods?

 

Thank you

 

Introduction - Hello

 

Hello,

I discovered this place yesterday and I hope to be sharing some useful, fun and entertaining stuff soon

Many of the projects I've seen so far were very interesting

I didn't notice a forum dedicated to introductions

I use mostly Arduino Uno's but I also enjoy the Parallax Propeller Quick Start board

I'm not an expert - but I do enjoy robotics

R/C --> I also enjoy flying quad copters but I'm taking an indefinite hiatus from collective pitch heli's but I still enjoy flying airplanes and driving trucks