 | | Handyboard Kit.
|
|
Hi to everyone, I just got my Handy Board Kit and going through the very first step of the assembly i found the first problem. In the handy board assembly instructions it describes capacitors C15 and C16 as 4.7uF Tantalum capacitors but in my kit (...) (28 years ago, 17-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | Serial Com.
|
|
The FAQ has information on sending and receiving info thru the serial port. My Question is: How do I do the other end in C. This is what I got the computer side of the serial cable: port = open("/dev/ttyS3",O_RDWD); <- THis is from my head, not (...) (28 years ago, 16-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | Re: sony ir
|
|
Dirk, Without actually seeing your icb function, it would be hard to determine exactly what is going on. But here are some guesses: 1) When you are modifying control registers in MC, make sure that you use bit commands so that you don't set or erase (...) (28 years ago, 16-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | sony ir
|
|
Thanks to Joeo for the hints on caputuring data from the handyboard. I have another question: Why does my sony infrared system stop working after calling a function which I have defined in an icb file? I have a number of functions defined in that (...) (28 years ago, 15-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | strange encoder problem
|
|
I'm using a hall effect sensor as a shaft encoder. 8 magnets have been placed on a wheel of my bot, such that they turn the sensor on and off as they pass by. I have written a small program to test the encoder, which makes the robot go forward 10 (...) (28 years ago, 15-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | Re: HB
|
|
HI Check for a short between pin 11 of the 'hc374 and +5V. Pin 11 is supposed to be connected to pin 9 of the 'hc138. It is the select line for the 8 flip-flops in the 374. If you have a logic probe, check either of these pins. They should be (...) (28 years ago, 15-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | HB
|
|
(...) connections so i am at a loss for knowing which leads to test. (...) (28 years ago, 15-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | tables
|
|
Hi, Can anyone tell me how to store a big table of data that the handy board has collected into a file for permanent storage? Thanks, -Dirk (28 years ago, 13-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | IC memory map
|
|
(...) Right now, IC reserves 16k for shared code and data space. 8k is for the multitasking stacks and interaction download space, and 8k is for pcode. -- Randy (28 years ago, 12-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | Re: Malloc
|
|
8K might be all that IC allows for user global data. The memory map can be rearranged, but only at the compile-time of the IC application. Newton Labs should be able to give you a definitive answer about the memory organization of IC 3.1. -Fred In (...) (28 years ago, 12-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | Malloc
|
|
I'm trying to allocate three large arrays to store data in... Such as the following declared globally: char stoA(4000); char stoB(4000); char stoC(4000); and then some code...not very long, just to capture data and store it in these arrays from the (...) (28 years ago, 12-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | Re: status of the expansion board
|
|
Hi I think that Fred's idea for the expansion board is OK, but I'd also like to see a "bare-bones" expansion board for those hardware hackers amongst the HB community. What I mean is just a simple board with a few more analog input's, and two sets (...) (28 years ago, 12-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | Re:
|
|
(...) search on "h-bridge" they have a H-bridge that can handle 3A @ 55vdc. I don't know if it can be piggybacked with driver transisters or not but the wonderfull part is if you would like they will send you FREE samples (3ea at a shot, with up to (...) (28 years ago, 12-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | (no subject)
|
|
(...) No, it will use just one '374 enable. -Fred (28 years ago, 12-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | Re: status of the expansion board
|
|
(...) . . . (...) Where can we find out more about the LEGO sensors? Are they part of some specialized kits? Do they sell them individually? Is there an online catalog? (28 years ago, 11-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | (no subject)
|
|
Could someone give me info on where I might find high-current (10-15 Amp) H-Bridges? I am willing to build or buy as necessary. My TIP120/125 bridge is working great, but the motors are drawing a bit more than these transistors should be handling. (...) (28 years ago, 11-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | unsubscribe
|
|
---...--- unsubscribe arp4@lehigh.edu (28 years ago, 11-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | Re: status of the expansion board
|
|
I'm curious as to how the Polaroid sonar and servo circuits will work. Will they simply steal timer lines from the HB's digital headers, or do you have something more complex worked out? For example, will the sonar's ECHO signal still go to a (...) (28 years ago, 11-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | status of the expansion board
|
|
Hi all, Many people are asking about the Expansion Board. It has been on the "back burner" because my publisher is demanding text, not technology. But I do plan to release another rev this summer. My ideas about what should go on it have evolved, (...) (28 years ago, 11-Jul-96, to lugnet.robotics.handyboard)
|
| |
| | Re: Newbie Questions (Sensors)
|
|
(...) using the LEGO light and angle sensor is non-trival; custom HW and SW drivers are required. See ftp://cher.media.mit...gosens.txt for details. (...) 0-12 inches is hard, but 0-1 or 2 inches can be done with a simple IR reflectance sensor. See (...) (28 years ago, 11-Jul-96, to lugnet.robotics.handyboard)
|
