Let's Make Robots!

sound

sounds from toys

i have seen many toys wich make noises and i once ripped open a toy cat wich meows when you squeeze it  the circuit inside seemed so simple and i want to beable to do somthing like it.

is there any way i could make somthing that justproduces one sound (but not a beep) this simple or is it only possible on a mass production scale 

thanks

Navigates via sound (as a contact switch) or IR for obstacle avoidance
Using a
A while back, JAX and I got to chatting about our first robots.  Mine was a "Movit Peppy Mouse:" Read more

AD & DA converters - at a total loss.

I'm doing some non-robot project to learn more electronics. And boy have I got a lot to learn!
Right now I'm trying to take an analog signal, convert it into 8bit digital info through an AD converter, and then back to analog using a DA converter.

Drive around, avoid obstacles and beeps with R2D2 sound when facing an obstacle
Using a
UPDATE MARCH 18 2014: Well, it's been silent in that project since it was finished. Now, after EL2ISA2 broke down because of a leaking battery he was waiting to be … Read more

Acoustic Noise Reduction

So in another forum I explained how I was using power screwdriver motors to move my rocker bogie suspension system. So I was wondering if you guys had any ideas on how to dampen the acoustic noise(not the electrical noise) coming from these motors. They use planetary gearboxes which I know are notorious for being loud but I need the torque that they provide. I was planning on using some sound proofing material to dampen the sound but I was wondering if you had any ideas. I know it is kind of a weird topic but thanks for your help. 

Thinking about entering Trinity College Fire-Fighting Contest

     The Trinity College Fire-Fighting Contest is the closest competition (to me) I know about, has anyone else considered entering?   In about a month registration opens and I was thinking of entering this year.  (definitely will enter next year)

There home page is:  http://www.trincoll.edu/events/robot/

And the rules are here : http://www.trincoll.edu/events/robot/Rules/default.asp

 


The things I need to figure out are:

which speaker (amplifier) for a "mobile-like" output of rttl (midi) sounds?

 

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I am working on a simple PICAXE (4.5 Volt) project that plays 

a (downloaded ringtone) rtttl sound file

 

Getting SOUND from your Picaxe (Works with other controllers also).

WARNING:  If "techie-stuff" makes your head hurt, do not read the following. 

      (ha ha)

______________________________________________________________

To make sound from your picaxe, the manual shows a 10 uF capacitor in series with a 40 ohm speaker.

This will work but gives a very low volume sound.

Sound and speech with Arduino
A small audio chip is available on the market at low cost (20 euros) that allows to build an audio player managed with buttons or via serial port, for example with … Read more

a circuit to distinguish between 3 given sound clips.

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.
Provides a compact way to add LEDs and sound to a small robot.
SoundnFury is a small electronics module with a piezo speaker and four red-green LEDs installed on a round Radio Shack circuit board. SoundnFury provides a compact … Read more

Possible robot reactions

To other users,

 

               I was wondering, is it possible for the robot to react at voice commands?

And what actions could a robot do generally?

Another batch of questions are: It says that a robot has a personality. Does it? In what way can we witness it?

Could it's actions be based on their personality or does it only apply to artifical intelligence?

 

I hope I can get some advice. Thank you.

Plays wave files from a AVR based MCU with very little external hardware!
Using a
Last year I wanted to add sound to a bot so I wrote a program that plays wave files.  I later rewrote it so that it would be completely interrupt driven so that I … Read more

PICAXE IR sensor debugging music!

I decided to harvest a peizo buzzer off one of my many salvage boards to use while troubleshooting a new IR reflective breakout per Frits' description in Live Show #012. It works like a machine. I only fried one sensor (hasty connection straight to V+). Surface mount components are easy to replace though, thank The Maker. The video has everything but the sensor carnage.

Ahh, sound debugging \o/  I think I've entered my personal Golden Age of Robotics.  

Navigate around while avoiding obstacles with ultrasound, infrared light and air pressure based bumper sensors.
Using a
Follows a line and avoid obstacles, Make sound with a piezo speaker
Using a
This is my entry for the DAGU "Beginners Robot Chassis Challenge". It is prelimary named Pacman, but the name maybe change in the future. Pacman was my first idea, … Read more

The Pulse - 2010w07

LMR on the Brain
Sensing the living LMR community since 2008w43.

Flash!

Pulses are sparse and they shoot by in the blink of an eye. Make sure you have your automatic trigger set up and armed. Or you will miss it.

let my robot be heard

Hi can anyone help on this....

I am trying to make some noises for my robot (in progress) via a picaxe 28x2 sound commands. I first bought a small piezo but it was way to quiet so i bought a bigger one, about 60mm D which i thought the sound would have been louder but it isn’t.

History: Inspired by Animusic's bodacious films, I was wondering whether a music robot in a much more simple way would be possible to make. Here is what my little … Read more

using a microphone as sensor

I have a couple of headset microphones, and I would like to use them as sound sensors..

I tried to amplify the signal using LM386, but it doens´t work.. can someone help me on this?

Store Sound in EEPROM

I know EEPROM can hold letters, numbers, etc, but is it possible to add a sound to eeprom? I am guessing it could be digitized and stored that way and then dumped to a variable and played somehow, but has anyone done it? I have a 1-2 second sound I would like my robot to play when it runs into something or something unexpected happens. I know I can purchase a seperate speaker/microphone kit from tech-supplies, but I would like to keep it on the PICAXE if possible since it is such a small file.

Any ideas?

OK,you can read it now     "The SpeakJet is a completely self contained, single chip voice and complex sound synthesizer." This walk thru will show how to use … Read more
On Picaxe: sound 1, (110,3) is NOT a good idea, you should allways write sound 1, (110,3) low 1 (you do not need line breaks, just write it as above)   Being used … Read more