Actually
With a little further tinkering, does the sampler board or second motor driver need anything to work with the Darlington board?
I got the neck motor to move, but much like the other motors, it only moves a little as the voltage is so low, so what should I change (I changed the ground to V+ on the other motors, but I dont no about the neck motor, I dont want to fry the driver)
Thanks
I am a little confused,it
I am a little confused,it appears that you are making up your own system here? If so, it is very, very hard for me to help you -> You invent it so only you know it, I cannot 
If not, please let me know at which step you are stuck, thanks.
Eh sorry, One of my first
Eh sorry, One of my first “real” robots so Im a little confused aswell.
What im trying to say is, my version of the board has a darlington buffered output (Like user clueless’s problem)
With the darlinton output, I need to switch Ground to V+ for the motors. Easy for the drum sticks, its all right there on the board.
Now my problem is, I need to do the same thing with the neck motor. But since the neck motor is controlled by the l293d, Im not sure what to connect it to make it oppisite like the drum motors. (http://luckylarry.co.uk/wp-content/uploads/2009/07/L293D.gif as you can see, I think I need to change the inputs and ground, or V+… Well im not sure really). I would try, But I only got one chip left, so If I fry it I got to get more.
What do you mean by "a
What do you mean by “a darlington buffered output”? Is your hardware different than what I show? I think we need to get down into the detail of this 
From what I can tell, we
From what I can tell, we have the same hardware. But when I connected the drum motors as shown, I would only get a small current (~0.1 volts). So I followed this comment. Then I get about 3 volts with that configuration (Changing ground to output, and output to v+) I would think it would be 4.5 volts,Its a little slow but works.
The problem is how to use this “darlington configuration” on the neck motor, as the configuration this article specifies gives a low voltage on the motor.
I have tested the batteries, they give a solid 4.5 volts, So Im sure its something with this whole “darlington” thing clueless said in his comment.
I now have gotten all the sticks to work, the drive wheels, and the SFR05.
I have tried connecting the sampler board, and running the test program, seems to work when I change some high’s and lows’s.
Sorry for being so confusing.
i LOVE this robot and im
i LOVE this robot and im planning to build it but i have a couple of questions about how it works. Im a drummer so i wondering, if i build it would i be able to make it play certain beats? would the robot play the same beats over and over? or would it make up different beats every time? i really dont know anything about the kind of electronics and programing like the kind the YDM is using. if anybody or Frits would answer my questions, it would help me a lot. thanks
You can make your own beats,
You can make your own beats, read the tutorial carefully and look into the code, you can make loops and all kinds of stuff.
Btw, anyone have an answer for my comment?
thank you so much.
thank you so much.
I am sorry, but I still do
I am sorry, but I still do not understand what the excact problem is. Can I ask you to post pictures of what is not working, where it is hooked up to, and some general pictures of the board? (Sharp, lit and clear, we need to see what is connected to what)
- And let us know what step you are stuck at, and what is not working, exactly and short? (Not what you think is wrong, but just “what is not working”)
Thanks
Ill upload some pictures
Ill upload some pictures when I get a chance later.
Quick Question, Should it
Quick Question, Should it matter if I use 3 AA Batteries instead of 4 Recharchables?
(Been doing some other stuff latley, Ill post the pics soon So I can finish this prodject)
Well… It will matter - but
Well… It will matter - but it will not fail because of this.
You need to provide close to 5 volts for optimal results. Batteries vary very much, but in general you can assume that 3 “normal” AA’s will provide 4,5 Volt, whereas 4 rechargables AA’s will provide 4,8 Volt… Roughly, very roughly said.
So your setup will give the robot less “power” in every action it takes (drive slower, hit lighter, move head less aggressive etc), but it will do
I think that would work
I think that would work fine. Certainly the Picaxe board will work on 3xAA alkaline batteries.
Okay, I seemed to have
Okay, I seemed to have gotten everything hooked up correctly (Well almost)
It works, But with some minor problems.
-The small speaker for the background beat and clicks is very soft, barley audable.
-The neck motor barley turns
I have my neck motor connected exactly as shown, It outputs about 3 volts, but not enough to fully turn it.
The small speaker is not connected as shown, as that wont work. I connected it how Jinnarin describes on the last page. It will produce a tone but not much.
Hopefully these errors can be fixed, otherwise Great tutorial! I had fun building it.
It appears to me that you
It appears to me that you might in general just have too little battery power.
PS: I am leaving for vacation now, do not expect answers from me over the next 3 weeks, sorry.
Well I checked that, Imma do
Well I checked that, Imma do some research and see if I can find the problem.
Have fun 
Attaching wheels to motors
Sorry for the basic question - but how exactly do you attach the wheels to the motor drives??
Ooops, finally noticed that
Ooops, finally noticed that two of the wheels are different and have the right shaped slot to fit the motor.
Thanks!
Solarbotics sampler board
I started building this amazing machine. HAd a few issues which I am using to learn a whole lot but there’s one thing I am a little stumped about.
The sampler board I got from Solarbotics replaced the LED by having the speaker beep very loudly and annoyingly before and after each recording. This is a rather unfortunate thing because it seriously takes away from the elegant operation of the final robot.
Does anyone know of a simple way to rewire or reprogram it to get rid of that annoying feature?
That’s annoying. You
That’s annoying. You probably can’t modify the recorder module to avoid the beep, but you could look for a similar module to replace it. Radio Shack makes one if they are in your area. Search online for another source. These are typically pretty inexpensive.
