Search found 326 matches

by Sambuchi
Fri Mar 28, 2008 7:04 am
Forum: General Discussion
Topic: I've pre-ordered mine from Parallax!
Replies: 15
Views: 5223

Hey, I've got the perfect part to hook up to that http://www.national.com/rap/files/datasheet.pdf I started reading this late in the day yesterday and thought I was losing my mind... I NEED MORE COFFEE! :shock: It had me going still when it came from a national website. :lol: Love the graphs. Numbe...
by Sambuchi
Wed Mar 19, 2008 7:10 am
Forum: Robotics
Topic: Servo Problem NEED HELP
Replies: 14
Views: 7563

vector, thats one impressive robot in that video.

I've dabbled with [accelerometers working with DSP's] a little with little luck. It takes a lot of experience to master it!
_________________
Tony

You can look at my projects here www.sambuchi.net
by Sambuchi
Wed Mar 12, 2008 1:42 pm
Forum: Computer Programming
Topic: HELP - PIC16F84A Based Serial Port Servo Controller
Replies: 14
Views: 8116

You wouldnt have to make a different servo controller... just rewrite some code and you should be able to get something to work... I think you have the capabilities if i remember correctly to run 8 servos. If I wanted to make a quick project what I would do is turn 4 of the "what would be servos" in...
by Sambuchi
Wed Mar 12, 2008 10:48 am
Forum: Computer Programming
Topic: AVR Programming Woes
Replies: 2
Views: 2284

Not sure of your entire setup but I use an ATMEL part ATMEGA8L. with the mkII http://www.atmel.ru/Disks/AVR%20Technical%20Library/tools/programmer/avrispmkii/img/ispMKII.jpg correct, the do not provide pwr to the board when programming. Thats sometimes due to the load that the user may have. In my p...
by Sambuchi
Wed Mar 12, 2008 10:31 am
Forum: Computer Programming
Topic: HELP - PIC16F84A Based Serial Port Servo Controller
Replies: 14
Views: 8116

Wow... If I were you, I would simply do it myself! You seem to have a great grasp on the tools... just write your own program that can control a servo.. its not that hard. I made this link a long time ago when I first got my servos rolling http://www.sambuchi.net/Projects/Robotics/Motor_Control/Moto...
by Sambuchi
Wed Mar 12, 2008 9:58 am
Forum: Computer Programming
Topic: HELP - PIC16F84A Based Serial Port Servo Controller
Replies: 14
Views: 8116

Yes thats the step.. :x Grrrrrrrrr... :x I hate that I cant help out more but I believe that this can only be a... bad .hex file or bad PIC or bad crystal. The hardware looks correct: right programmer for chip, right jumpers, power, etc. Maybe check the RST line to the PIC make sure its high. Keep u...
by Sambuchi
Wed Mar 12, 2008 9:27 am
Forum: Computer Programming
Topic: HELP - PIC16F84A Based Serial Port Servo Controller
Replies: 14
Views: 8116

OK... Thats a good check list! :D Well, Looks like during the setup they made you do a hardware loop back with the serial port. Seeing how that was an earlier step I am assuming that went well. Now put a jumper between pins 1 and 5 and between pins 2 and 17 of the PIC socket. This loops the serial d...
by Sambuchi
Wed Mar 12, 2008 8:20 am
Forum: Computer Programming
Topic: HELP - PIC16F84A Based Serial Port Servo Controller
Replies: 14
Views: 8116

Re: HELP - PIC16F84A Based Serial Port Servo Controller

Looking over some of the posts.. the issue is still in the setup... since you are not getting your PIC to communicate to the Hypertem.. I could write something for you to verify the PIC is working, but lets look at your setup. where is this document that you are looking at.. can we see it? The probl...
by Sambuchi
Sat Mar 08, 2008 4:44 pm
Forum: Robotics
Topic: Line Following Sensor Arrangement Algorithm
Replies: 7
Views: 8133

Richard I am impressed on how well you grasped this new concept! PID Controller Proportional : You are correct! This is the simplest part of the controller. Proportional is simply the difference where you are at from where you want to be. [Diff] Now here comes some calculus… calculus deals with th...
by Sambuchi
Thu Mar 06, 2008 5:06 am
Forum: General Discussion
Topic: Who piles up EDN magazines ?
Replies: 4
Views: 1683

I have a question.. I love collecting stuff as much as the other guy.. magnets, shot glasses beer caps! :lol: But on this forum I hear a lot of people collecting tech magazines. I have subscriptions to magazines but when I am done with them they usually end in the trash.. Besides the tech info that ...
by Sambuchi
Thu Mar 06, 2008 4:47 am
Forum: Robotics
Topic: Line Following Sensor Arrangement Algorithm
Replies: 7
Views: 8133

Well, I am not sure if you understood me when I say Digital vs Analog. In "line following" same concept can be used in other applications... A digital signal will provide you with two answers on the line or off the line. These inputs would generally go into a I/O port of a micro... This is pretty ex...
by Sambuchi
Wed Mar 05, 2008 10:35 am
Forum: Robotics
Topic: Line Following Sensor Arrangement Algorithm
Replies: 7
Views: 8133

hello richard, the most accurate line following setup will be one that is analog rather than digital. You will also need much less hardware To accomplish this. I had a robot that could hug a line very well http://www.sambuchi.net/Projects/Robotics/IEEE/IEEE_Robotics.htm heres the pic. http://www.sam...
by Sambuchi
Mon Feb 25, 2008 12:41 pm
Forum: General Discussion
Topic: Microcontroller as a keyboard
Replies: 1
Views: 963

Try this.. http://www.piclist.com/techref/microchip/picboard.htm I needed to do something like this once... ended up buying this http://www.ultimarc.com/ipac1.html What a life saver... came with wire hookups, app to setup all inputs.:D What are you trying to do? I was able to get mine working but yo...
by Sambuchi
Wed Feb 20, 2008 7:29 am
Forum: General Discussion
Topic: My moment of fame!
Replies: 6
Views: 2372

Bob and Yerry thanks for your kind comments. I have never been published before nor have I tried... but seeing something that you have done being recognized in this manner is something great! I can hope this wont be the last time my work will be put under the spotlight... its an awesome feeling. Tha...
by Sambuchi
Mon Feb 18, 2008 6:14 am
Forum: General Discussion
Topic: My moment of fame!
Replies: 6
Views: 2372

My moment of fame!

I recently shared a project that I completed on the Hacked Gadgets Forum... It was the "Ford Ranger MP3 Radio aux Input mod" that I discussed here.. where I received some input. Alan Parekh, the site admin for HG, posted my project as a featured article! http://hackedgadgets.com/ I am thrilled to sa...