 | | Re: Polaroid 6500
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jluijk wrote: <snip> (...) The two on the left are + battery voltage and the two on the right are ground. They're doubled up to handle more current, I guess. (...) Make sure that you're getting 9.6 V at the motor power header, and that you have your (...) (26 years ago, 27-May-98, to lugnet.robotics.handyboard)
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| | Re: please unsubscribe me
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---...--- (...) (26 years ago, 26-May-98, to lugnet.robotics.handyboard)
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| | Re: unsubscribe
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---...--- (...) (26 years ago, 26-May-98, to lugnet.robotics.handyboard)
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| | Which R4 should I use???
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I notice that in hbmanual.pdf there is a different value for R4 than in hba.pdf since I used the list of hbmanual, I bought R4=2.94k precision resistor, but in the asembly file it says 3.83k precision resistor. Which one is the good one and why need (...) (26 years ago, 26-May-98, to lugnet.robotics.handyboard)
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| | Pyroelectric Sensor
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Hello. I have working with a handyboard, and I am trying to obtain information on how to properly use a eltec 442-3 pyroelectric sensor. I bought a complete one with a lens. My objective is for my lego robot to locate either a flame or heat source, (...) (26 years ago, 26-May-98, to lugnet.robotics.handyboard)
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| | Legos
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Does anyone have any experience with any of the Lego technic systems. I am looking for a car/truck that has motors (or can add motors to), has enough room for a handyboard, and has the rack and pinion steering. I would also need a servo for the (...) (26 years ago, 25-May-98, to lugnet.robotics.handyboard)
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| | HOW TO UNSUBSCRIBE
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Greetings, This is the periodic friendly reminder that in order to unsubscribe, you must send an email to fredm@media.mit.edu asking thusly. Again, the method for unsubscribing is: 1. write an email saying "please unsubscribe me"; 2. send it to (...) (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
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| | Distance Measuring Sensor
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Hi ! How is it possible to interface one or more SHARP GP2D02 to the HANDYBOARD ?? Best Rerards Diego (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
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| | Pad sizes and hole sizes
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I'm working on a board and I would like to avoid much trial and error. I have read much on selection of pad sizes/via sizes and hole sizes but there seems to be some contridiction. Does anyone know what the pad sizes (for ICs), hole sizes (for ICs) (...) (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
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| | Re: Board not responding
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(...) The most probable cause of this is a dead 6811. (it spoils rather easily... :(Because everytime i have a problem with the board, it turns out to be nothing more than a shot 6811. Even replacing the 7805 with a LM2931T kills it. (26 years ago, 23-May-98, to lugnet.robotics.handyboard)
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| | Board not responding
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Hi! The handy board was working good before and I haven't used the board for a while. Recently, I ran the downloader few times, but I couldn't download the bootstrap. I think the download mode is ready, but the error message like "Board not (...) (26 years ago, 23-May-98, to lugnet.robotics.handyboard)
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| | setting the best PWM frequency for DC motor
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hello everyone, I found some information on "How do I set best PWM parameters for DC motors?" from the "Robotics Information" homepage, (URL) inside it described that in order to make current to flow steadily in between pulses, you need to satisfy (...) (26 years ago, 23-May-98, to lugnet.robotics.handyboard)
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| | Where can I find spec. of the LM052L
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I have an equivalent LCD screen (sharp L16255), I think, but it is a bit different from the LM052L and I am not sure how to interface it to the handy board. I cannot find any spec. on neither of these LCD screen and just need a hint maybe. Thanks (...) (26 years ago, 22-May-98, to lugnet.robotics.handyboard)
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| | Re: important update to Handy Board standard libraries.
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(...) You must manual consolidate the new driver with the smooth-pwm libraries. To consolidate, 1. edit the smooth-pwm lib_hb.c, and remove the function "_raw_analog()", 2. install the new lib_hb.icb file in your IC lib directory (this contains the (...) (26 years ago, 20-May-98, to lugnet.robotics.handyboard)
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| | Re: important update to Handy Board standard libraries.
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Will this new lib_hb.c also replace the Smooth PWM lib_hb.c released by Newton Labs? It appears not. What is the easiest way to consolidate the Smooth PWM routines with your improved analog code? Cheers, Skye. +---...---+---...---+ | Skye Legon | (...) (26 years ago, 20-May-98, to lugnet.robotics.handyboard)
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| | Re: Addresses of SPI ports
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Hi Arthur, The SPI expansion header is shown below: ---...--- Pinouts: 1 Gnd | 2 | 1 | 2 Vcc 5V | 4 | 3 | 3 SS* | 6 | 5 | 4 MISO | 8 | 7 | 5 SCK ---...--- 6 MOSI 7 & 8 Not connected I assume you will be using the Handy Board as a MASTER device not a (...) (26 years ago, 20-May-98, to lugnet.robotics.handyboard)
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| | Re: Addresses of SPI ports
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Hi The SPI Header is connected to port D of the hc11 as follows: Port D Bit 2 - PD2 - MISO Port D Bit 3 - PD3 - MOSI Port D Bit 4 - PD4 - SCK Port D Bit 5 - PD5 - SS All of those pins can be used for general-purpose I/O signals. To program port D (...) (26 years ago, 20-May-98, to lugnet.robotics.handyboard)
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