Do you have any tips on how to generate new fonts? And how to generate icons (small images). I have downloaded "the Dot Factory", but I do not know what settings to use the get the correct output.

I guess it only detects knocks, but I want to create a "real" keyboard that requires you to hit the correct keys. Ideally I would like some thin plastic I can lay on the ground and read with a digital pin if it is triggered or not, but I guess that is hard.

Hi

I would like to make a bounce juggling piano like in this video: , I think this is fake.
I would like for it to be just some thin sensors or something I can lay on the ground and bounce the balls on? I cannot use wood or cardboard because that will ruin the bounce. So I am looking for some good sensors I can use for this that is easy to read from the arduino. I have been thinking about piezo-elements, but I am not sure how to separate them unless I have separate blocks for the separate keys, but then the balls will fly away if they hit the area between the different keys. Do you have any ideas for sensors for this, the keys have to be quite a bit larger than the balls.

I am thinking about using the new Music shield from Sparkfun to generate the different sounds.

One thing to note is that it seems it requires the Arduino Mega to record audio, it will only play audio with the smaller Arduino.

I have just ordered a shield that should play files from SD and also record OGG files. I have not gotten it yet, but you can look at the documentation of this card and see if it does most of the stuff you need.
http://www.seeedstudio.com/depot/music-shield-p-642.html?cPath=132_134&zenid=1287e3aeb180ed7d127d46effe785c4e

There is a post about it here: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1284738418
And here is a link to the page with the tutorial and code: http://www.x-firm.com/?page_id=145

Noen som vet hvordan en enkelt regner om koordinatene til noe som kan brukes i Google Maps så en ser at det virker? Jeg brukte en eller annen side, men jeg bommet vel med ca 100 km, ble plasert ute i sjøen utenfor Trondheim.

I am confused, as far as I can read, what has been said before, at least in this thread is that they can be used to switch line-level, but not speaker-level.

Thanks, so to use the 4066 or 4067 it looks to me like I would use them to make a small MUX tree? Connect the different sources to the different inputs and then use the outputs of these switches into new inputs.

PS3 -
         >-
PC -       \
              >--
TV -       /
         >-  
iPod -

These are computer speakers so I think the signal is line level. The signal is from computer, Cable-TV box (PVR), PS3 and maybe some more.

Hi

I would like to make my Arduino receive IR-signals from a remote and then switch the sound source input to my speakers. The remote part is not the problem, but how do I make a good and simple sound source switcher with maybe four stereo inputs?

Anders
Norway

So you think it is ok to power the servo with 4.8V and give it a control signal of 5V?

I have already bought the servos and built the platform for the robot so I will try with servos first.

What do you mean with Ack?

Anders

Hi

I want to make a self-balancing robot with Futaba continouos rotation servos. I would like to power the servos from 4XAA 1.2V batteries since they might draw to much current for the Arduino. How do I get my control signal to the servos to the correct voltage. The servo VIN pin will get 4.8V while the output from the Arduino will be 5V.

Anders

Hi

I have bought two servos by parallax/futaba that I want to use for a robot. I am experimenting a bit with them to understand how I control them. If I use the servo library with Arduino I can make them rotate, but I do not know if I can change the speed and direction. What values should I use with the write-routine in the library?

Anders
Norway