 | | Re: L293 vs TI 754410
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Hello there. I've piggybacked three chips, for a total of 2.6A (2 1A chips and 1 0.6A chip, piggybacked with heat sink compound slathered between all the chips and between the top chip and the heat sink I've put on it). I haven't had any problems (...) (28 years ago, 10-Jul-96, to lugnet.robotics.handyboard)
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| | Newbie Questions (Sensors)
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Greetings! I have a couple of "newbie" questions if you please: I ordered from LEGO, their "sensor suite". I managed to wire and use the touch sensor. But I am puzzled about the use and wiring of their Light Sensor (9890) and their angle sensor (...) (28 years ago, 10-Jul-96, to lugnet.robotics.handyboard)
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| | Re: Source for LCD's
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(...) From the components supply list at (URL) compatible retail display is the Hitachi LM-052L. Supplier info for Hitachi parts is available at (URL) Other valid manufacturers/part numbers: Alps LDS7A1792A; Optrex DMC16249. (...) Electrically, any (...) (28 years ago, 10-Jul-96, to lugnet.robotics.handyboard)
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| | Re: L293 vs TI 754410
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(...) The TI chips should work fine. You might not get a full 2A, but at least a 50% improvement. (...) The traces can handle it, but the PolySwitch fuse should limit total current to about 4 to 5 A. You might need to remove the fuse and live (...) (28 years ago, 10-Jul-96, to lugnet.robotics.handyboard)
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| | Source for LCD's
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FYI all electronics ((URL) has 3 LCD displays that could be used with the handy board: Optrex DMC-16207 16 char * 2 lines Hitachi LM052L 16 char * 2 lines Sanyo LCM-524-87H4 40 char * 2 lines Price is 12$ each, any model. Can someone confirm (or (...) (28 years ago, 10-Jul-96, to lugnet.robotics.handyboard)
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| | L293 vs TI 754410
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HI Just wondering what kind of success anyone has had with piggy-backing the L293's. My HB came with the TI h-bridge chips and I wanted to know if I could use the same technique. I figure if two chips can be run in parallel, giving up to 2A for each (...) (28 years ago, 10-Jul-96, to lugnet.robotics.handyboard)
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| | Cursor Position
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Hi, I was wondering if there is a way to position the cursor directly. Using IC's printf function works great, but I can't position the cursor exactly where I want it. I'm trying to display a dynamic bar graph and some other information based on the (...) (28 years ago, 10-Jul-96, to lugnet.robotics.handyboard)
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| | Re: Questions, questions, questions......
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(...) The Handy is like the 6.270; both have dig out latches going to the motors. The RW drives the motor ctrl pins directly. A re-write of the system PWM routines could provide finer than 8 levels of control, even w/o needing HW timer lines. (...) (...) (28 years ago, 10-Jul-96, to lugnet.robotics.handyboard)
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| | Questions, questions, questions......
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Hi I've just built my first HandyBoard (thanks for the great service Prabal), and have a few questions (that I can't find in the FAQ). What are the hardware-imposed software differences between the HandyBoard and the 6.270/Rug Warrior boards ? ie it (...) (28 years ago, 10-Jul-96, to lugnet.robotics.handyboard)
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| | re: RE: code
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Me Too ! Jens (28 years ago, 9-Jul-96, to lugnet.robotics.handyboard)
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