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  • Members: 795
  • Category: Hardware
  • Founded: May 7, 2001
  • Language: English
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Messages 549 - 578 of 6169   Oldest  |  < Older  |  Newer >  |  Newest
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549 daghb@... Send Email Dec 1, 2002
2:16 pm
Perhaps you could elaborate on what kinds of sensors you've got and what you're trying to do with them. Are these sensors light sensors, bump sensors,...
550 Terry Gathright
terrygathright Offline Send Email
Dec 1, 2002
4:02 pm
Hi, I have two programs listed here,<sena_senb_cal1> and <aim7>. when I try to load I get error messages <servo_deg undefined>, <servo_on undefined>. Have...
551 Jim Peterson
jcpjimcp Offline Send Email
Dec 1, 2002
6:02 pm
The sharps themselves do not have any code in the handyboard,. they are just analog inputs on floating ports. The servo's on the other hand do require a driver...
552 Satish Chetty
sc0125a Offline Send Email
Dec 1, 2002
7:04 pm
I have a sonar mounted on a servo and sharp below it. The servo pans left to right to left and the sonar takes readings for each direction. The sharp measures ...
553 Patrick Hui
handyboard2002 Offline Send Email
Dec 1, 2002
11:12 pm
Hello, This depends on the frequency vs. amplitude response of buzzer chosen. Check the buzzer specification from different vendors (e.g....
554 Mark Adams
markadams1971 Offline Send Email
Dec 2, 2002
3:30 am
I am having the same problem, did anyone find a fix? Mark ... to ... servo2, ... if ... to...
555 daghb@... Send Email Dec 2, 2002
4:49 pm
You need to load the code with those function calls. Create a .lis file with the name of your .c file and add servo.c and servo.icb. Then load that. E.g.: ...
556 Patrick Hui
handyboard2002 Offline Send Email
Dec 2, 2002
11:10 pm
Hello, How did you provide power to servo? By separate servo motor power on Expansion board. Thanks and Best Regards, Patrick Hui ...
557 Jim Peterson
jcpjimcp Offline Send Email
Dec 3, 2002
3:47 am
It really sounds like you have the answer. How many minutes of operation do you get before the "supply voltage low" starts? I believe a fully loaded TS-53...
558 sc0125a Offline Send Email Dec 3, 2002
8:27 am
Well, if I was designing the robot, I would look into design considerations for saving power. Ex. instead of powering the servo all the time, I would probably...
559 Ang Siau Eng
xiao_en Offline Send Email
Dec 3, 2002
10:10 am
Do you mean LMD18200 @ this website? LMD18200 - www.national.com/ds/LM/LMD18200.pdf L293D - www.st.com/stonline/books/pdf/docs/1330.pdf if yes, you have to...
560 gustavomfreitas Offline Send Email Dec 3, 2002
6:01 pm
Hello I have a problem with my handboard. I am assembling it, and whem I download the firmware and reset the board, the LCD still shows the black blocks. The ...
561 jayanth g
robothobby Offline Send Email
Dec 3, 2002
6:13 pm
Thanks Ang for the site,it was helpful and my sumobot is working fine with the 18200 motor controller. Jayanth Ang Siau Eng <xiao_en@...> wrote:Do you...
562 john Tran
johnddtran Offline Send Email
Dec 3, 2002
8:55 pm
Hi Nguyen, Sorry for not reply u sooner because I am in the middle of assignments due and exams. About your question, I think to make the sound louder you need...
563 Patrick Hui
handyboard2002 Offline Send Email
Dec 4, 2002
11:07 pm
Hello, Did you check the 8M crystal oscilator using the scope? Thanks and Best Regards, Patrick Hui ...
564 devequals Offline Send Email Dec 5, 2002
1:09 am
Thanks for all the feedback! I re-wrote the code to use only 2 sharps so it seems to work well enough for my presentation. Eventually I will figure it out....
565 gustavomfreitas Offline Send Email Dec 5, 2002
9:18 pm
As I donīt have a scope, I changed the crystal for a new one but nothing changed. I configurated the contrast level of the LCD with a potentiometer but this...
566 Gary Scott
gary_scott48197 Offline Send Email
Dec 5, 2002
11:57 pm
I know this is going to sound obvious, but what type of LCD display is it? Do the pinouts match the HandyBoard correctly? You said that you can download the...
567 x01101001 Offline Send Email Dec 6, 2002
3:15 am
Hi, I recently purchased a Max 99 robot base (www.zagrosrobotics.com) for my robot experiments. I have enjoyed small robots but now I want a BIG one. So I...
568 x01101001 Offline Send Email Dec 6, 2002
3:28 am
Hi, I really HATE Basic Stamps because - from a programmers perspective - they are just too limited. However, the newer Basic Stamp type chips (BS2, BasicX,...
569 Satish Chetty
sc0125a Offline Send Email
Dec 6, 2002
4:41 am
I mentioned this few weeks ago. I bought a small motorcyle battery (lead acid) for $2.00. You can use the HB to turn on and off (reverse) a relay that powered...
570 gustavo freitas
gustavomfreitas Offline Send Email
Dec 6, 2002
1:36 pm
The LCD is correct. I tested it in another board and it worked, an I even tryed a new one in the HandyBoard but nothing. And the beep still plays in the second...
571 namo802 Offline Send Email Dec 6, 2002
8:32 pm
Hi, I can get this sensor to work well as a human detector, but I'm trying to use it solely as a fire/candle detector. I mounted the sensor on a servo to...
572 x01101001 <x01101001@...
x01101001 Offline Send Email
Dec 7, 2002
6:41 am
Hi, I am contemplating cutting a lead off of one (or more) Handy Board analog input lines. The problem is that some sensors don't like the pullup resistors on...
573 Dan Gates <topazx2@...>
topazx2 Offline Send Email
Dec 7, 2002
8:14 am
Nick, I had the same reservations about hacking up my HB at first too, I assure you that you won't regret cuting the resistor pack for the Sharp sensor. I...
574 Mark Adams <markadams...
markadams1971 Offline Send Email
Dec 7, 2002
2:30 pm
Turned out to be a bad U1 on the expansion board. As I recall I blew a 74374 on the main board so I used one from the servos. Now that I wanted to test some...
575 gustavomfreitas <gust...
gustavomfreitas Offline Send Email
Dec 7, 2002
6:54 pm
Today I tested the board with the scope. The crystal is working fine, but the frequency of the wave at pin 5 of 68hc11 is not constant. And something very...
576 x01101001 <x01101001@...
x01101001 Offline Send Email
Dec 8, 2002
12:41 am
Thanks! I imagine this must be difficult for class rooms: class 1 writes some code and it works; class 2 cuts the resister pack; class 1 comes back next week...
577 Sam Weiss
lightmanca Offline Send Email
Dec 8, 2002
12:54 am
There are those "short" sockets. I'm not sure how to describe them, but you often see them on old SCSI hard drives for the termination resistors.. They don't...
578 Mark Adams <markadams...
markadams1971 Offline Send Email
Dec 8, 2002
2:29 am
Befor I decided to cut the trace on my pull up's I simply used a 3904 transistor to pull the anlogs to ground. The analog output from the sharp connected to...
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