 | | Re: 9.6V POWER AND 9V MOTORS
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(...) Measure the resistance of the motor's windings. Motors are typically rated in max current, NOT max voltage. Take any voltage and divide it by the winding resistance to get the current the motor will draw at stall (and when it is initally (...) (25 years ago, 29-Sep-99, to lugnet.robotics.handyboard)
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| | 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??? (...) (25 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: (...) (25 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 (...) (25 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 (...) (25 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 (...) (25 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 - (...) (25 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 (...) (25 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 (...) (25 years ago, 27-Sep-99, to lugnet.robotics.handyboard)
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