 | | 9.6V POWER AND 9V MOTORS
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Question? The 9.6v battery in the HB is ideal for running 9v motors, correct? So wouldn't it be true that the motors of an R/C car which also has a 9.6v battery be 9v??? How do you go about finding the voltage and current drawn in a DC motor??? (...) (27 years ago, 29-Sep-99, to lugnet.robotics.handyboard)
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| | Re: PCODER22.S19
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Your loading the wrong pcode file, you need to load pcode_hb.s19, not pcoder22.s19 Matt -----Original Message----- From: Paul DaCosta <germano@voicenet.com> To: Handyboard <handyboard@media.mit.edu> Date: 28 September 1999 16:57 Subject: (...) (27 years ago, 28-Sep-99, to lugnet.robotics.handyboard)
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| | PCODER22.S19
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hey everyone, i need help i cannot download ic to my hb, i followed the instructions, but it doesn't work. I keep getting a message like this" cannot find file pcoder22.s19" what's up with this, can someone tell me the right way of downloading ic to (...) (27 years ago, 28-Sep-99, to lugnet.robotics.handyboard)
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| | Lo-Tech for Hi-Tech swaps, anyone?
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I plan to use the Handyboard within a Course on Interfacing, Microcontroller and Assembly Language Programming at undergraduate level here, starting next month. It turns out that there is a PCB production facility here in Zimbabwe which is now (...) (27 years ago, 28-Sep-99, to lugnet.robotics.handyboard)
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| | (canceled)
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| | hbtest.c
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Hi, I'm assembling a handyboard and am at the stage where the digital inputs are tested using the testdigitals() function of hbtest.c. The test partially works, and I get the beeps after pressing the start and stop buttons, but when I jumper the (...) (27 years ago, 28-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Problem with bootstrap mode
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Hi Raj - - Trickle charge the battery for awhile (with the HB turned off), then try it again. Good luck, - Nick - (...) (27 years ago, 27-Sep-99, to lugnet.robotics.handyboard)
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| | Problem with bootstrap mode
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Hi I am having hard time in putting my handyboard in bootstrap mode. I didn't used my board in months , so it run out off power. when i tried to use it display is not working properly. The first line of the display is not working. when i swithed on (...) (27 years ago, 27-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Analog I/O as Digital I/O
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Also, the "digital(int p)" extends to the analog ports too. When used with a port that is analog in hardware, it just uses 127 as a threshold value to return 1 or 0 (note below 127 returns true). See page 22 in the HB manual. However, with this (...) (27 years ago, 27-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Analog I/O as Digital I/O
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(...) Since the analog inputs read voltage levels, you should be able to just plug in any switch or 5-0volt input directly. To read the values, use the analog command, and in theory you should only get two possible values, 255 for +5volts, and 0 for (...) (27 years ago, 27-Sep-99, to lugnet.robotics.handyboard)
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| | Analog I/O as Digital I/O
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Can the analog input lines be used as a digital input lines (if there is no requirement of analog input)? Because, these lines are connected to the port E of 68hc11, then what are modifications required in the code? Asim Kar. City University of Hong (...) (27 years ago, 27-Sep-99, to lugnet.robotics.handyboard)
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| | Serial transmiter
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Does anyone know of a 9600(8,N,1) serial port transmitter? Or have plans for one? I need one for a telepresence robot that I am designing, Also it needs to be as high of power as it can be I am a HAM novice if it makes a difference Andrew Holland (...) (27 years ago, 25-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Using 12V supply with Expansion Board?
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Duhhhh....don't forget to put heat sink on the 293 motor drivers or else you will fry it! Thank You Bart Chrijver for the reminding. Rob (27 years ago, 25-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Using 12V supply with Expansion Board?
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At 12:13 AM 9/25/99 -0700, you wrote: I've look at the electrical schematic for both the Handy Board and Expansion and this is what I got. Because the expansion board only share the handy board's motor output for its Servo outputs, I don't think you (...) (27 years ago, 25-Sep-99, to lugnet.robotics.handyboard)
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| | [OT] HandyBoard batteries
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Hi All: Found: An excellent source for inexpensive HB batteries. They are new 2 AA (800mAh) cells in series for US$0.99 each. I bought 12 of them for $7.14 ... connected four of them in series and added a female connector ... added a male connector (...) (27 years ago, 25-Sep-99, to lugnet.robotics.handyboard)
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| | Re: error when loading *.icb file
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this is a known problem. see the FAQ: (URL) your message you said: (...) (27 years ago, 24-Sep-99, to lugnet.robotics.handyboard)
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| | Re: error when loading *.icb file
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I had the same problem. When I run as11-ic on my MAC, I have no problem. When I do it on an IBM clone, I cannot load it into the Handy Board. I fixed it by hand-editing out the comment line (its in human language) in the generated .s19 file and it (...) (27 years ago, 24-Sep-99, to lugnet.robotics.handyboard)
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| | EXTENSION BOARD
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I every one, I have a problem, is it possible to have an extension board connected to the HB, and at the same time have a seperate motor power source? The reason I'm asking this is because that the "seperate motor power source" and "extension board" (...) (27 years ago, 24-Sep-99, to lugnet.robotics.handyboard)
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| | error when loading *.icb file
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Hi, I have downloaded the as11 assembler. When I assemble a *.asm file, a *.icb file was created. Then I whated to load the file in the HB but the message "Fatal internal error: Illegal line in .s19 file" was dispayed on the monitor. What's the (...) (27 years ago, 24-Sep-99, to lugnet.robotics.handyboard)
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| | No objection
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Gary Livick wrote: <snip> (...) I don't mind that sort of solicitation. I think it's great that you're helping the Handy Board community by developing HB robotics accessories. I might end up being a customer when you get it up & running. Good luck (...) (27 years ago, 24-Sep-99, to lugnet.robotics.handyboard)
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