 | | Motor driver circute problem Using L298N
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Hi guys, I built a Hbridge motor driver using the IC L298N. But it is not working properly. It is swithcing properly with the inputs but it is not drawing the current required for the motor. I am sensing the out Voltage as 8v but when i connect the (...) (25 years ago, 21-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Advice
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Need more information. What kind of "light" sensors are you referring to? CdS cels, IR light sensors, active sensors? There is alot of information on wiring sensors in the Handyboard manual available in the Documentation section of the MIT (...) (25 years ago, 20-Dec-99, to lugnet.robotics.handyboard)
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| | Advice
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How do I connect the light sensors to the board correctly? Cheri Burch (25 years ago, 20-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Futaba or Hitec servos
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(...) As always with the "what is better" question, I must ask... What do you mean by "better"? They will operate the same, I think they have the same cable pinout. The Hitec ones are cheaper usually, but a little larger for the same specs. At the (...) (25 years ago, 19-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Shaft Encoders
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(...) While I am not familiar with the LEGO Rotation Sensor (simply because I havn't got one yet), I have constructed, for the moment, a "homebrew" rotation sensor. My recent models have mostly been models of the robots we build at work. They are (...) (25 years ago, 18-Dec-99, to lugnet.robotics, lugnet.robotics.handyboard)
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| | Futaba or Hitec servos
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Hello, Which ones are better? Advantages/Disadvantages Are there any alternatives that operate the same way? Please share some experience. Thanks for any! :) (...) This message is for the named person's use only. It may contain confidential, (...) (25 years ago, 18-Dec-99, to lugnet.robotics.handyboard)
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| | HB heat problems, HB connectivity problems (Mac)
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I have two HandyBoards. One is having a severe heating problem on the second from the bottom chip on the left side. It is getting to the point that after a few minutes of being on, it is painful to touch. All of the solder points to that chip appear (...) (25 years ago, 17-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Help with IR receive
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thanks for the help. I just breadboarded the circuit with the RC circuit and the instability has gone away. Now I have to get the extra components on to the HB :) see the datasheet for details: (...) (25 years ago, 17-Dec-99, to lugnet.robotics.handyboard)
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| | Shaft Encoders
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Can somebody provide links to Information on Shaft Encoders. Thanks Kalyan Mulampaka Software Engineer e GE Information Services ___...___ Ph#: (770) 698 4436 (O) (770) 390 0887 (R) (25 years ago, 17-Dec-99, to lugnet.robotics, lugnet.robotics.handyboard)
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| | Re: Help with IR receive
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(...) substitute (...) These are NOT optional components. I saw the same thing with the IS1U60 if I didn't use the 47uf/47ohm low-pass filter on the Vdd input to the part. Use it, your problem will go away. have fun, DLC (25 years ago, 17-Dec-99, to lugnet.robotics.handyboard)
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| | Here are your coupons
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Here are some coupons for you. No need to register your E-Mail address or anything else. Just print and save. Merry Christmas !! (URL) you feel that you have received this in error, please forward it back to sender and you will be removed from our (...) (25 years ago, 17-Dec-99, to lugnet.robotics.handyboard)
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| | Help with IR receive
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I just added the Sharp IS1U621 to my handyboard. That is apparently a substitute for the ISU160. When I run the simple test program: while (1) {if (4 & peek(0x1000)) fd(0); else bk(0);} my lights continuously flicker. When I put my logic proble on (...) (25 years ago, 17-Dec-99, to lugnet.robotics.handyboard)
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| | Firefighting robots
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I'm building a robot for the 2000 Trinity College competition. Since the goals of the contest are fairly complex and I'm new to programming, does anyone know of source code listings for a sumo bot? I've seen a bit of assembly source but I'm (...) (25 years ago, 16-Dec-99, to lugnet.robotics.handyboard)
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| | Mystery problem
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I have been having a weird non-fatal problem lately with my handyboard. I put some code into the other night that was simply calling the testanalogs() function on startup. The .lis file I used just loaded the hbtest.c and the file I wrote containing (...) (25 years ago, 16-Dec-99, to lugnet.robotics.handyboard)
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| | Re: servo motor design
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If you are using a Handyboard then what you probably want to do is simulate a servo motor rather than actually go through the effort of building one that behaves like the ones from a hobby shop. As an example, if you had a lego motor driving a gear (...) (25 years ago, 16-Dec-99, to lugnet.robotics.handyboard)
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| | servo motor design
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I know that designing your own servo motor is kinda stupid becoz they are abundant out there. but i'm in a competition which requires us to design our own gearbox, so i don't see a way out of it. how do i start? how do i design that feedback loop (...) (25 years ago, 15-Dec-99, to lugnet.robotics.handyboard)
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| | (no subject)
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unsubscribe (25 years ago, 15-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Driving an L298 motor driver board
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Hi, I done a PCB with the L298 H-Bridge. You just need to remove the L293D and but a special connector in the socket. You can drive motors (2) with 2A current. If you are interesting with this PCB send me a mail. kind regards, Nicolas. (25 years ago, 14-Dec-99, to lugnet.robotics.handyboard)
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| | Re: error message
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Sorry, but Interactive C does not support the "case" construct. You'll have to rewrite your code using "if...then" statements. Ross M. Tonkens, M.D. Medical Director Primary Care of Nevada 100 North Green Valley Parkway Suite 240 Henderson, NV 89014 (...) (25 years ago, 14-Dec-99, to lugnet.robotics.handyboard)
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| | Re: error message
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Kah Mun, sorry, IC does not support the 'switch' construct. re-write using if-thens. fred In your message you said: (...) t (...) (25 years ago, 14-Dec-99, to lugnet.robotics.handyboard)
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