Hi Bryan, I had the same trouble with a robot arm I built using servos. Sometimes it would act like it had Parkinsons disease! The solution was to incease the...
... While at the Oklahoma Botball Regionals, I asked the head person there - the man I believe is named Dr. David Miller from KIPR. He told me that you can...
hi i would like to program a bot that pickups tennis balls, i will use 3 servos, 1 sonar, and some digital inputs and outputs, i have the expansion board of...
I had a problem where I accidentally overloaded motor port 2. I fear I may have damaged my HB. I got some replacement motor chips from texas instruments,...
Hi all, I once saw a way to hook up a motor to the Handyboard using a resistor to an analog port. The problem is, I dont remember where I saw it? Does anyone...
Well at least I think it was static that killed my speaker. shy of unsoldering the speaker, I've tested everything and the hb works fine except there is no...
The following is a quote from the Handyboard FAQ. Try replacing U8 (the 74HC374) and/or U9 (the 74HC04). These two chips are both part of the motor driver...
Hello Javier ... connect ... Yet Reply in this Group, Read the Docs !!! - 3 servos connected in XB (Left Bottom, servo 0-5) - Sonar (Polaroid or Devantech...
Hey Mike, I think the subject of motor stall current sensing is covered in Flynn and Jones Mobile Robots book. The other place I might have seen it would be...
John, I saw it somewhere SPECIFICALLY used and demonstrated for the Handyboard. In case your wondering why I am trying to do this, Scott needs it on the...
You need to look a bit further into the handyboard for trouble. The speaker isnt likely to blow due to a static shock. It is possible but not likely. -Mike ...
it's possible that static discharge blew the hc11 pin that drives the piezo. fred...
904
Greg Starr
starr@...
Mar 3, 2003 5:35 pm
Two of the teams in my LEGO robot class are experiencing the same problem when trying to use servos with the Expansion Board. As long as the AC adapter is...
Hi, I had the same problem with an arm I built using servos. The solution for me was that I needed a better battery(more amperage). It seems that the servos...
I had the same problem. Every time the servo starts, it draws a lot of current (only while starting and not running), this causes a voltage drop and makes the ...
I have been using servos w/ the HB for a while now and the only way to get a decent power source ultimately to the servos is to suppy it as you say cut traces!...
Hi All; "Hello John Tran" You have a expert about Handy Cricket.... I need some helps.. I ordered one set of Handy Cricket...has one light sensor and one...
Phuong nguyen <chiqhoang@...> wrote: Hi All; "Hello John Tran" You have a expert about Handy Cricket.... I need some helps.. I ordered one set of Handy...
hello guys, I am building a mobile robot using the handyboard and lego pieces. I know that reactive paradigm is needed for my objective. But before going ahead...
Hi, In my experience, the best way for you to develop a behavior based robot is to multitask. In this way you will be able to parallel process, what this means...
I was using some sensors when accidently some wires touched. All of a sudden the handyboard turned off. When I tried to turn it on it would just turn off...
This isn't exactly about the handyboard but this is one board I frequently visit and I'm sure someone here can help me. I am thinking of purchasing an printer...
how can i print in pc screen the distance measured with the sonar, i can only print it in the LCD, can i use some iostream.h library or somethinglike that? is...
Which version of IC are you using? IC 4.01 and above have the ability to upload global variables and arrays from the HB to the PC. IC is not compiled C, it...
hi Jim Peterson, could you tell me how to upload the gloable variable or array to the PC. thanks. I use the version 4.01 regards yuzhu ... Which version of IC...
hi with your disable and enable p_code, I use the following function to get and send char from or to PC. but they donot work void serial_putchar(int c) { while...
