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 Robotics / Handy Board / *7019 (-20)
  Re: servo program
 
Dear ?: First off, your program contains an infinite loop; statement return(0); will never be reached. Also you told it that main does not return a value, yet you used e return in the end. This will generate a compiler error for sure. I belief the (...) (25 years ago, 29-Nov-99, to lugnet.robotics.handyboard)
 
  Re: evaluate inverse cosine, sine in IC
 
I've been trying to do this as well. The problem I have found is that the Taylor series expansion needs to be developed near the solution to get accurate results. Some may wonder why finding the arcsine of a number might be of interest. If one has a (...) (25 years ago, 29-Nov-99, to lugnet.robotics.handyboard)
 
  servo program
 
Can anyone please write me a brief servo motor program that will control two servos from the expansion board? This the one I had to control one, but did not work: void main(void) { while(1) { init_expbd_servos(1) servo0 = 1000 } return(0); } (...) (25 years ago, 29-Nov-99, to lugnet.robotics.handyboard)
 
  Re: Opto isolator
 
Hi Tim, Try (URL) and (URL) seems to be a huge variety of MOC3x series optoisolators to choose from. You might be able to find a substitute for the MOC5003 or 4 that you're looking for. Good luck, (...) Great minds discuss ideas; Average minds (...) (25 years ago, 28-Nov-99, to lugnet.robotics.handyboard)
 
  Opto isolator
 
Hi, I was wandering if anyone knew where I could get a MOC5003 or MOC5004 opto isolator. I tried looking on the motorola web site but could not find it. Does any one know where I coul something similiar to this that works the same way. TIM ___...___ (...) (25 years ago, 28-Nov-99, to lugnet.robotics.handyboard)
 
  digital outputs
 
Hello everyone... I hav already connected a hc374 to Y0 of the expansion bus to get 8 digital outs, It works gr8. I need anouther 32 outputs which meens I need 4 more latch selects. Can I use Y1, Y2, Y3, Y4, and Y5 if needed? Y0 is used by (...) (25 years ago, 28-Nov-99, to lugnet.robotics.handyboard)
 
  Navigation with two Polaroid Sonars?
 
What is a good meathod to implement navigation on a robot with two Polaroid sonars and basic two-motor steering? I was doing research and they use nueral networks and such, but I am not yet at the stage to implement something that complex. Thanks (...) (25 years ago, 27-Nov-99, to lugnet.robotics.handyboard)
 
  Interface to other displays
 
Hi, Does anyone have info on replacing the LCD with another type of display? What I have in mind is an array of 5 X 7 LED displays. No sense reinventing the wheel if someone has already done this. TIA John (25 years ago, 27-Nov-99, to lugnet.robotics.handyboard)
 
  alphanumeric plasma display
 
Hi, I got one alphanumeric plasma display 40 char X 8 lines made by industrial electronics engineers from a surplus store for $7.50. But i didn't have any litarature about this product. I tried to search for their web site but no luck. If any one (...) (25 years ago, 26-Nov-99, to lugnet.robotics.handyboard)
 
  Re: IC 3.X and Smooth PWM
 
Yes it does. Look in the Handy_Board_1.2.icd file that came on your 3.x disc. That file specifies the .s19 pcode file to load and any other files to be loaded at startup of IC 3.x. You can either change those to some special name you have created (...) (25 years ago, 26-Nov-99, to lugnet.robotics.handyboard)
 
  IC 3.X and Smooth PWM
 
Does IC 3.X support smooth PWM? (25 years ago, 26-Nov-99, to lugnet.robotics.handyboard)
 
  Re: motor driver circuit -- help needed
 
Hi, my name is nicolas and I'm a french student in an engineering school at LYON. I make a PCB with the L298N for the handy board. You must remove the L293D that you use for the motor 0 and 1. You put a connector in the socket 16 pin and this (...) (25 years ago, 25-Nov-99, to lugnet.robotics.handyboard)
 
  motor driver circuit -- help needed
 
Hi , I am trying to drive two DC motors of 12v, 2A rating for my robot base. I am looking for the ready-made motor drivers for this. Please sujust me if you guys have any products known. i found one in the web , help me in deciding whether this is (...) (25 years ago, 25-Nov-99, to lugnet.robotics.handyboard)
 
  Re: HandyBoard not responding
 
Hi, Finally I found out what happened. One of the pins of the RJ-11 socket on the handyboard was disconnected from the PCB. So I soldered it back and the handyboard is working fine. Thanks for all your help. Kalyan (...) (25 years ago, 25-Nov-99, to lugnet.robotics.handyboard)
 
  Re: HandyBoard Charging
 
Danny, Glad you've got it working! Gleason Research is a good company to do business with, isn't it? Good luck and have fun with your HB, - Nick - (...) (25 years ago, 25-Nov-99, to lugnet.robotics.handyboard)
 
  Re: robot project
 
(...) Michael: You will not get your program to outrun light. The rf signal is moving at 300,000,000 m/s. If you divide the space between your antennas by 300,000,000 you will get the time difference for the rf arrival time. I believe you will find (...) (25 years ago, 25-Nov-99, to lugnet.robotics.handyboard)
 
  Re: robot project
 
Mike, Don't think it's going to work. 186,000 miles per second is almost 1,000,000,000 feet per second ... so if your receiver antennas are 12 inches apart the time difference of the received pulse will be 0.001 microseconds maximum ... way too (...) (25 years ago, 25-Nov-99, to lugnet.robotics.handyboard)
 
  robot project
 
Hi, I’m trying to get a robot to turn a face the owner using rf. I have one transmitter (that the owner will wear) and three receivers (set up in a triangle). We want to use the transmitter as a beacon. Then whichever receiver gets the signal first, (...) (25 years ago, 25-Nov-99, to lugnet.robotics.handyboard)
 
  Re: Video Transmitters
 
I received the X-10 cam I ordered two days ago. It arrived right on time, and is pretty impressive for less than $100 including California sales tax. Plus they sent me this gizmo that you plug into the back of your computer, with a couple of (...) (25 years ago, 24-Nov-99, to lugnet.robotics.handyboard)
 
  Re: IR Sensors
 
(...) Didn't I post that to the handyboard list? I don't remember sending to the SRS. For some reason, I get alot of "user-not-found" error messages when I send an email to the handyboard mailing list. Do I have the old address? I was using (...) (25 years ago, 24-Nov-99, to lugnet.robotics.handyboard)


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