Hey all I am trying to sort through data for controlling a unipolar stepper motor with a microcontroller. I have done this before but the hardware was already in place on a development board. What I need is a way to drive a 12V Unipolar stepper with a microcontroller. I have found a number...
I have built my own tri-amped system crossovers, amps, preamp, etc based on Rod Elliot's information and it is awesome. Check out [PLAIN]www.sound.au.com[/URL] there is a wealth of information on his site its free and ligit I know since I have talked many times with him and have bought stuff as...
Check out this bad boy
http://www.nvlsi.no/index.cfm?obj=product&act=display&pro=79
anybody have any experience with this chip? It looks like it has everything I need all in a convient package and small which is extremely important for this design. The only problem is a devolpment kit is...
yea that would be a good one WFO I guess he is pretty busy. I decieded on a engineering topic unrelated to electrical since I could not find many situations. I re-read the instructions and it says engineering problem and does not specify on it being in our field so I choose the Levy system in...
How about this, I have changed my original design to make this interface wireless. I am trying to figure out a way to transmit this joystick position without having a adc on the t/x side this is not possible is it? So I need a small chip/chips with t/x and dac additional processing can be done...
I think I will stay away from any homemade food warming/containment devices. I will let you experts lend advise as you choose:smile:
The paper assingment is quite vauge at this point I asked for clarification from my instruction via email but no response. Anyway I think it is supposed to be...
I am having trouble coming up with a topic for a research paper dealing with something related to the Eletrical engineering/ technology field. It has to be something that has happened within the last five years. Any idea's?
Thanks
I guess so, I got hung up because when I tested the resistance of the thing it was funky so I guess if I put +5V on one axis and -5V on the other axis it should be farily easy to come up with a program for it.
Thanks
Sorry I did not do it must have been the piece of crap free image hosting guess I won't use that one anymore. I checked the post and clicked on the image to makesure it worked and it did so... How about this:
[img=http://img407.imageshack.us/img407/582/positionbl9.th.jpg]
Maybe this will help I turned the unit on and tested the voltage across the pins from the potentiometers. I am still confused how this works though as in one position across the pins it goes one way and by switching one of the leads to the other pin it is opposite. See the drawing
oh click on...
That is exactly what I expected to see, hence the confusion the 3 solder points below each corresponding pot are where I have tested the ones that have the arrows drawn in the pic
here are some shots of the board I drew a couple of arrows which is where the pots are sitting.
[img=http://img167.imagevenue.com/loc458/th_92178_S4300003_122_458lo.JPG]
[img=http://img169.imagevenue.com/loc554/th_92180_S4300005_122_554lo.JPG]
Hello all been a while since I logged on, anyway I am trying to develop a product which uses an analog joystick. It needs to be small and thumb operated so I thought I would first design with a spare analog original xbox controller. I found that the resistance of the pot for the vertical...