Hello Marzio, This is due to the over-current drawn by the DC motor and causing the Handyboard to reset. You can use a separate motor power supply on the...
Happy New Year to you all from a new member from the UK. Please bear with me if I ask stupid or obvious questions about the Handyboard, for I know not better. ...
I found one of those in a 40MB(!) hard drive i had lying around.. 12Mhz (3Mhz E-clock) type. stuck the board in the gas grille and tapped it until all the fun...
In my last message I forgot to tell I'm using the Handyboard with the expansion. Thanks for the hint, but I think those ports are already used by EB. Today,...
4198
Greg Starr
starr@...
Jan 5, 2006 1:53 am
I'm building a Handyboard, and before Christmas I asked about help in troubleshooting an intermittent problem which occurred after I installed the HC04 and...
maybe too many inputs are floating, and you're in an electrically noisy environment, such as directly under fluoros? try a different hc04, and hook an...
4202
Greg Starr
starr@...
Jan 6, 2006 3:28 pm
Thanks. I am working under fluorescent lights, but I've built HBs under them before and not had a problem. I've tried several HC04s (all of which are known...
Does the Handy Board work ? What happens if you plug the power adapter into the main handyboard ? Does the serial adapter board function normally with the...
4207
Greg Starr
starr@...
Jan 10, 2006 9:21 pm
1. The HB basically works, but intermittently. Right now I can't seem to make it fail. I have another working HB with which to swap chips, etc. It doesn't...
Hi, I am trying get two robots with handyboard to communicate with each other using bluetooth. I have considered other means like IR and RF but decided to...
Try pulling the motor IC's and see if the charge led will still flicker. ... From: handyboard@yahoogroups.com [mailto:handyboard@yahoogroups.com]On Behalf Of...
I have seen use of wireless modems for the serial communication between Handyboards. The "basic" unit should meet your needs in all cases. You will need to...
4211
Greg Starr
starr@...
Jan 11, 2006 1:48 am
Motor ICs are not installed yet. ... ***************************************************************** * Gregory P. Starr, Professor of Mechanical Engineering...
Does anyone use rf module (cm02 radio telemetry module) before to make handyboard work wireless? I have question about connect it with handyboard. Hope someone...
I'm a bit confused (liked always). I thought the HB used an HC11 not a HC04? ... From: handyboard@yahoogroups.com [mailto:handyboard@yahoogroups.com] On ...
I used the BlueSMiRF with the handyboard for a recent project. Here's my two cents: - One of our project members noticed that the power that is supplied via...
Hello, my name is Jeremy and I'm building a small robot to scan packages. I have this scanner already: http://pos-x.com/images/Xi1000_spec.pdf But I've never...
4217
Greg Starr
starr@...
Jan 12, 2006 4:00 pm
We're referring to the 74HC04 chip which is one of the logic chips on the board. The processor is a 68HC11. ... ...
Hi you all. I'm developing a RoboCup sistem and need to communicate the path planner running in the pc with my robot using the serial port. I have a program...
you need to work out a way to send your array/struct as a stream of chars. you could rather easily send whatever is in memory at your struct pointer, but you...
Typically serial communication is done in ASCII. One reason for this is to allow you to use a terminal emulator to send and receive the data. The software on...
Hello all. I am doing a senior design project that focuses on the handyboard in a cat and mouse competition. I'm collecting parts for my board and have come...
You should be able to find the resistors you need at any RadioShack. If RadioShack doesn't have them, any electronics parts store should.... Same with...
I would have expected you to have more trouble with finding the 68hc11 or the ds1233(?) or the 62256 than common discrete components if its important to get...
In the past my professor had a local surplus electronics store put a kit together for his students. They couldn't do it this semester, but I was able to score...
my handyboard came to me pre-made with rb's in the radial spots, one leg wrapped around the can, and it works fine. if you can't find the resistor packs for a...
Which kind of resistor packs are they, bussed or isolated? If bussed, is the number 1 pin the one with no resistive element? ... one leg ... resistor ... ...
