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 | | Re: HB IR transmit circuitry problem
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| what value are you using for the R4 resistor? There was an incorrect value in some of the Handy Board documentation and it might not be fully expunged. Also, are you using a polypropylene capacitor for C6. -Fred -- This message was composed using (...) (27 years ago, 3-Sep-97, to lugnet.robotics.handyboard)
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fred
(score: 0.947)
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| | Re: Photos: Is that you, Fred?
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| (...) Whoa, Fred! I pull up that picture, your face appears, and my machine immediately reboots. What power! I don't understand it, I didn't think you looked that bad. :-) * Michael L. Ross/C33 | Lockheed Martin Eng & Sci Svcs Co. **** * Robotics (...) (27 years ago, 13-May-97, to lugnet.robotics.handyboard)
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fred
(score: 0.947)
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| | RE:
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| (...) Isn't that what the SPI is for? Set one up as master, and all others as slaves. Look in the 'pink' book. I don't know of any existing drivers, but Dr. Fred Martin at MIT has stated he will write some Real Soon Now, maybe January. Keep checking (...) (28 years ago, 5-Dec-96, to lugnet.robotics.handyboard)
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fred
(score: 0.947)
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| | Re: DC adapter
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| Good question. Answer: DO NOT USE REGULATED ADAPTERS WITH THE HANDY BOARD. I will add this to the FAQ, because it is not obvious, but the HB power circuitry was designed explicitly for CHEAPO UNREGULATED WALL WARTS ONLY. sorry, Fred In your message (...) (27 years ago, 4-Sep-97, to lugnet.robotics.handyboard)
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fred
(score: 0.947)
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| | Re: DC adapter
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| a regulated supply would be really nasty when you put the interface board in ZAP mode -- the supply would try to raise the level of the battery to 15v or whatever, and that would be bad. so unless you really know what you are doing, steer clear of (...) (27 years ago, 5-Sep-97, to lugnet.robotics.handyboard)
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fred
(score: 0.947)
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| | Received handyboard :-( ... ---> ... :-)
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| YES! The handy board 1.2 got another happy user! I received the Handy Board with an American 120/60 adapter instead of an European but except for paying a lot of money for that item being shipped to the bin there are plenty European transform (...) (28 years ago, 5-Dec-96, to lugnet.robotics.handyboard)
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fred
(score: 0.946)
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fred
(score: 0.945)
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fred
(score: 0.945)
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| | Buncha bouncebacks
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| Fred, I get a bunch of bounce-back messages when I post to this mailing list. Apparently many of the addresses have gone bad. It doesn't really matter, I just delete them, but how does one, as a mailing-list administrator, deal with address (...) (28 years ago, 29-Jan-97, to lugnet.robotics.handyboard)
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fred
(score: 0.945)
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| | Re: PORTD WOM Control Bit
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| (...) yes it is normal to receive errors when posting to the list. here is an excerpt from the 'welcome msg' i send everyone when joining the list: 5. When you send to the list, YOU WILL GET BOUNCES. This is normal, there are always some bad (...) (27 years ago, 24-Sep-97, to lugnet.robotics.handyboard)
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fred
(score: 0.945)
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fred
(score: 0.945)
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| | Re: Hardware or software??
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| (...) This is normal. Here is an excerpt from the testing notes: The Handy Board will display the message ``Press START to test knob...'' on its LCD screen. Press the START button, and the screen will show the message ``Turn knob; STOP to end -> (...) (27 years ago, 1-Oct-97, to lugnet.robotics.handyboard)
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fred
(score: 0.944)
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| | expansion board
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| Fred, It seems to me that the first thing most people want to add to their robots that is not supported on the handyboard itself, is IR collission detection. How about including a modulator and driver for IR LED's, and a detector and demodulator (...) (28 years ago, 14-Feb-97, to lugnet.robotics.handyboard)
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fred
(score: 0.944)
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| | Re: High power motor drivers
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| Keith Check the HB home page. Fred posted my info for a H-bridge that will handle two 12V-55V motors at 3A each. I know it's not exactly a custom bridge, but you can make the PCB from scratch. The LMD18200 from National makes this really easy. (...) (28 years ago, 28-Jan-97, to lugnet.robotics.handyboard)
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fred
(score: 0.943)
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| | Re: Handy Board Problems
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| after you download the S19 code, does your C program in the HB go away? i.e., whether or not you hold down start, your HB boots up with the IC message on the LCD? If NOT, then your downloader isn't communicating with your board either. Did your (...) (27 years ago, 11-Oct-97, to lugnet.robotics.handyboard)
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fred
(score: 0.943)
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fred
(score: 0.943)
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| | Re: Downloading Problems
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| 1. don't worry about the slightly out of spec voltages, +/- 5% is just not a problem. 2. you have already demonstrated that your board HW is OK by communicating from a Windows system. therefore 3. it is probably a cabling problem from your mac. you (...) (27 years ago, 15-Oct-97, to lugnet.robotics.handyboard)
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fred
(score: 0.943)
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| | Strange.....
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| Today I was at The Computer Museum, Boston, presenting The Handy Board, and non-commercial controlers called Crickets. The HB was working fine, but one time I turned it on. It diplayed: "IC v3.1 Bet" an the heart stopped beating. It seems as if it (...) (28 years ago, 14-Jan-97, to lugnet.robotics.handyboard)
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fred
(score: 0.943)
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| | Re: hbtest errors
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| You are using the wrong library files. Make sure the IC application is set up to use lib_hb.lis, not lib_r22.lis, and get the library files from the HB Software Resouces page. Fred In your message you said: (...) (27 years ago, 18-Oct-97, to lugnet.robotics.handyboard)
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fred
(score: 0.943)
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| | Re: Board synch problem
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| last week someone reported solving this by letting the battery charge. let us know if that works. am assuming that nothing changed in your config (cpu, cables, etc). fred In your message you said: (...) (27 years ago, 20-Oct-97, to lugnet.robotics.handyboard)
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fred
(score: 0.943)
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