 | | 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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