 | | Re: HB controlling robot.
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(...) without (...) Really simple. 1. Write code using Interactive C 2. Download code to Handyboard 3. Either run main() from IC or reset the board (cycle power) 4. Unplug the cable between board and PC Congratulations, your robot is now running (...) (26 years ago, 25-Sep-98, to lugnet.robotics.handyboard)
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| | [Sensors Inputs]
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Hello all, i'm developing my MicroMouse robot with the HandyBoard and i was thinking about having 12 IR analog sensors (from Quality Technologies - QRD 1114). However, the HB suports only 7 analog input sensors. So, is there any way that i can use (...) (26 years ago, 25-Sep-98, to lugnet.robotics.handyboard)
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| | HB controlling robot.
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Dear all, I just obtained a HB and I would like it to control my robot. This is the situation: The robot is currently functioning ok and it is controlled by a 16-bit microcontroller, all the motions can be controlled simply by giving it a command (...) (26 years ago, 25-Sep-98, to lugnet.robotics.handyboard)
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| | Re: fred please help
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1. when you say "lights stay on," are you specifically referring to the SER and PWR LEDs by the two buttons? because the motor LEDs may be on or off, it doesn't matter, before the bootstrap download. 2. assuming yes, you are talking about SER and (...) (26 years ago, 25-Sep-98, to lugnet.robotics.handyboard)
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| | Re: Motor Output
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REF: PWM control of 4A, 12 VDC motors with an LMD18200-based H-bridge HandyBoard Greetings, Two LMD18200s apparently can be 'bridged', being then capable of currents of 6A (average) and 12 A (peak). This information is based on specifications (...) (26 years ago, 25-Sep-98, to lugnet.robotics.handyboard)
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| | Re: Motor Output
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(...) hehehe!! Have you ever tried to do PWM with a relay? ;) Sounds like a buzzer... and is not quite healthy for the relay... Use LMD18200!!... altrough they are limited to 3A with a 5A peak... Can somebody tell us if we can put two LMD18200 in (...) (26 years ago, 24-Sep-98, to lugnet.robotics.handyboard)
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| | Re: Motor Output
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(...) The solution is really simple. All you have to do is run the power from the motor outputs to a relay. This relay will activate another circuit (an automatic switch with power detected from motor outputs)which has your 12DC 4A motors AND it's (...) (26 years ago, 24-Sep-98, to lugnet.robotics.handyboard)
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| | fred please help
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I just bought a pre-assembled Handyboard. And I am about to explore it. Already I am having problems. I am trying to go into the bootstrap download mode as described in the manual, but it doesnt work. I turn off the handy board, hold down the STOP (...) (26 years ago, 24-Sep-98, to lugnet.robotics.handyboard)
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| | Motor Output
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Dear All, I've problem trying to power 12V 4A DC motors directly from HB. 1) Has anyone try this (4A) with TI SN754410 (piggy back them) ? 2) How do I connect the external diode to L298 ? Regards, keong :-) (26 years ago, 24-Sep-98, to lugnet.robotics.handyboard)
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| | multitasking, and sonar sensors
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I've read through the maunual for the Handy Board, and I am aware that the handy board has multitasking capabilities. The manual says that the function: start_process(...) is the function to use to have the handy board multitask. WHERE is this (...) (26 years ago, 23-Sep-98, to lugnet.robotics.handyboard)
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| | PID control
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Hello. I am looking at using my Handyboard to do PID control of a motor, with the feedback coming from one of the analog inputs. From what I understand, tuning the control is the most difficult part. Has anyone tried this with the Handyboard, have (...) (26 years ago, 23-Sep-98, to lugnet.robotics.handyboard)
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| | Fire fighting robots
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I'm doing a project for school. I'm buiding a fire fighting robot and I need to do research on what other people have done in the past with fire fighting robots. For example the Trinity College contest, if there's a URL please E-Mail it to the list. (...) (26 years ago, 23-Sep-98, to lugnet.robotics.handyboard)
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| | Re: Digital Output
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Check out: (URL) Hoffmann E-Mail jhoffman@it.sait.ab.ca (...) (26 years ago, 22-Sep-98, to lugnet.robotics.handyboard)
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| | (no subject)
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Synchronizing with board Pcode version 3.10 present on board Loading C:\IC 3.2\libs\lib_hb.lis. Loading C:\IC 3.2\libs\lib_hb.c. Initializing interrupts Downloading 1175 bytes (addresses 8000-8496): 1175 loaded Downloading 70 bytes (addresses (...) (26 years ago, 22-Sep-98, to lugnet.robotics.handyboard)
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| | Re: Serial input
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The problem is that I am already using the console port to communicate to a pc. What I would like is to have one or more devices communicate back to the handyboard then the handyboard communicate to the pc. On the home page there is link to "9600 (...) (26 years ago, 22-Sep-98, to lugnet.robotics.handyboard)
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| | Re: Serial input
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the only easy way to get a serial input is to take over the console port used by IC. this isn't hard to do, but you lose the ability to interact with the board via IC while your board is running your code which is tlaking to the alternate serial (...) (26 years ago, 22-Sep-98, to lugnet.robotics.handyboard)
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| | Digital Output
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Hi, I am working on a totally autonomous sumo wrestling robot, using the HB as its brain. I have interfaced sensors to it, and even designed a high current motor driver circuit to directly interface to the existing L293D inputs (Info available on (...) (26 years ago, 22-Sep-98, to lugnet.robotics.handyboard)
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| | Serial input
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I am working on a project that requires serial output devices, I would like to connect these to the digital inputs. Is there anyone that has some routines (preferably ic funtions) that I could have that do this. Is there a way to use the SPI port to (...) (26 years ago, 21-Sep-98, to lugnet.robotics.handyboard)
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| | help!
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Dear hb-fans, I'm currently trying to use the handy board to run a 12-legged robot. I've tried to power the motors directly from the hb motor output but apparently the current supplied is too low. Is there any simple method of powering my motor and (...) (26 years ago, 21-Sep-98, to lugnet.robotics.handyboard)
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| | newbie needs help.
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I just bought a pre-assembled Handyboard. And I am about to explore it. Already I am having problems. I am trying to go into the bootstrap download mode as described in the manual, but it doesnt work. I turn off the handy board, hold down the STOP (...) (26 years ago, 21-Sep-98, to lugnet.robotics.handyboard)
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| | stepper motor speed
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Hi, Recently, I have connected the wires out from the 4 motors ports on the HB and then directly connected to the driver L298.Next, the o/p of L298 is connected to the stepper motor which drawn 3A. I supply 4A parallel to the 2 motors. Hence, each (...) (26 years ago, 20-Sep-98, to lugnet.robotics.handyboard)
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| | Re: lcd screen pinouts
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the LCD should work fine. On the HB, pin 1 is on the top left, and pin 14 is on the top right. Just hook them up in order and you're all set. Fred In your message you said: (...) (26 years ago, 18-Sep-98, to lugnet.robotics.handyboard)
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| | lcd screen pinouts
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Hi I have purchased an lcd screen for the handyboard, however it's not the ridji-dij lcd. The pinouts are as follows pin symbol function 1 Vss 0v 2 Vdd 5v 3 Vo contrast adjustment 4 RS register select 5 R/W read/write 6 E enable signal 7 DB0 databit (...) (26 years ago, 18-Sep-98, to lugnet.robotics.handyboard)
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| | Handy Board expansion board
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As I am new to this mailing list, I wondered if anyone could tell me if it is possible to obtain expansion board pcb's, or is it still at the beta testing stage. Looking at the web pages it seems to give several more outputs/inputs. Any more info on (...) (26 years ago, 18-Sep-98, to lugnet.robotics.handyboard)
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| | Card readers
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Is there anyone familliar with magnetic card readers, I would like to know where I could get some information on them (communications, etc...) Thanks, Joe Hoffmann E-Mail jhoffman@it.sait.ab.ca (26 years ago, 15-Sep-98, to lugnet.robotics.handyboard)
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| | Re: <obstacles>
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Ok. If you used 2 motors in m1(right) & m3(left) , and your sensor was at the front (and only one), and in port 15, a short program for running it could be: /*Start of avoid.c */ void main(){ while(1){ /*Puts program in an infinite loop*/ fd(1); (...) (26 years ago, 15-Sep-98, to lugnet.robotics.handyboard)
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| | Re: Re: <obstacles>
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I don't really know how to explain finite state machines (FSMs) or parse trees...(I'm not in computer science...) but my artificial life class's homepage is still up and the text is available through it in post-script format ((URL) everyone that (...) (26 years ago, 14-Sep-98, to lugnet.robotics.handyboard)
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| | Re: WARNING: +5 supply exposed
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I got my PCB from Miranda Robotics (mail to colin@prospero.u-net.com for more information) in England, and the trace is fully covered. Apperently, not al HandyBoard PCB's ar exactly the same. Thanks for the tip anyway. Jeroen van der Vegt. (...) (...) (26 years ago, 14-Sep-98, to lugnet.robotics.handyboard)
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| | Handyboard on 9V battery?
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Can it be done? I'm using the Handyboard to control my hexapod robot and weight is a problem. At the moment I have 8 AA batteries connected which are not particularly weight light. I'm not using any of the motor driving functions of the board, just (...) (26 years ago, 14-Sep-98, to lugnet.robotics.handyboard)
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| | Re:
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(...) There's many ways you can approach obstacle avoiding. There are neural nets, evolutionary code (incl. genetic programming and genetic algorithms), finite state machines, and there's hard-coding it into the program (which, of course is no fun (...) (26 years ago, 14-Sep-98, to lugnet.robotics.handyboard)
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| | (no subject)
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Hi,all I am trying to write neural-fuzzy code for avioding of obstacle. I am using handy board. I never wrote a code for fuzzy logic. can anybody suggest me any good site on web for fuzzy logic or any book or any code which he has written. Thanks in (...) (26 years ago, 14-Sep-98, to lugnet.robotics.handyboard)
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| | Manual reading
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Hi, Besides the source of manual on Interactive C from the internet, Is there any other sources on the IC software for me to find out more on IC , Eg book ? There are a lot of text book concern the software like C++, java , how about Interactive C . (...) (26 years ago, 12-Sep-98, to lugnet.robotics.handyboard)
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| | WARNING: +5 supply exposed
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Take a moment to look at your Handy Board. There is a thick trace along the top, right and bottom edge. This is your regulated +5 line. Now look very closely at the outer edge of this trace. It should be completely green (covered with solder mask). (...) (26 years ago, 12-Sep-98, to lugnet.robotics.handyboard)
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| | WARNING: +5 supply exposed
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Take a moment to look at your Handy Board. There is a thick trace along the top, right and bottom edge. This is your regulated +5 line. Now look very closely at the outer edge of this trace. It should be completely green (covered with solder mask). (...) (26 years ago, 12-Sep-98, to lugnet.robotics.handyboard)
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| | My problems with digital outputs
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Dear Mr Fred Martin, My project requires digital outputs and does not need to have motor outputs. I have also read your FAQ and one of them states that by adding a hc374 IC chip in a similar fashoin to the one driving the motor circuits, and (...) (26 years ago, 12-Sep-98, to lugnet.robotics.handyboard)
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| | Re: analog problems
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Dear Sam, It is so strange as you already replace all the chips. The "testanalogs()" is used to test A/D feature and analog port of MC68HC11. It will prompt you "Press START to test knob..." You then press START button and the reading of A/D port (...) (26 years ago, 12-Sep-98, to lugnet.robotics.handyboard)
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| | analog problems
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I am building my handyboard and have been unable to succesfully execute testanalogs(). testmotors(); and testdigitals(); work but when i testanalogs(); either the board displays the current position of the knob (1-256) and freezes, displays the (...) (26 years ago, 11-Sep-98, to lugnet.robotics.handyboard)
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| | Re: Ramping up and down.
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(...) Not quite, but I made good use of the PWM to provide automatic, feedback-adjusted motor control for straight-line tracking. It might give you some ideas. My 'bot uses differential steering (it looks like a small wheelchair) and used to cruise (...) (26 years ago, 11-Sep-98, to lugnet.robotics.handyboard)
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| | Re: Difference between designer and OEM Polariod kit
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(...) The OEM kit contains two transducers and two ranging circuit boards for about a hundred bucks or so. The designer kit contains only one each of the above, plus an experimental demonstration board with a digital display and driver circuitry, (...) (26 years ago, 11-Sep-98, to lugnet.robotics.handyboard)
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| | Ramping up and down.
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Does anyone have any code using the new smooth PWM motor routines to ramp up and ramp down the speed. I have tried a few things with out much successs. Thanks Bill James | work: 972.480.2306 Product Test Specialist | Pager: 972.598.6201 (...) (26 years ago, 10-Sep-98, to lugnet.robotics.handyboard)
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