 | | Re: Data acquisition through analog input
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I am sorry, it is www.glolab.com ----- Original Message ----- From: Mulampaka, Kalyan (GEIS, ASI) <Kalyan.Mulampaka@geis.ge.com> To: William Ho <ukho@tm.net.my> Sent: Monday, October 18, 1999 11:10 PM Subject: RE: Data acquisition through analog (...) (25 years ago, 19-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Handyboard low voltage motor control
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Good point... There is another way. You can build your own h-bridges using mechanical relays and maybe a few diodes. They drop zero volts, which is good. However, you obviously can't PWM the things. If you just want rudimentary speed control, you (...) (25 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Handyboard low voltage motor control
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That'll work, of course, but that also means I'll be dissapating about 8 volts at .5A through the resistor... Gary Livick wrote in message <380B55B1.1C3703C4@p...ll.net>... (...) to (...) still (...) but (...) (25 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Handyboard low voltage motor control
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How about a resistor in series? Gary Livick (...) (25 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Sharp GP2D02 with out expansion board
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Yep, I did. See (URL) Livick (...) (25 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | Handyboard low voltage motor control
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Hi All, Most of you guys seem to want more power to control motors, well, I want to go the other way. I'm looking to drive 1.5v motors with the handyboard. The lowest voltage the L293 can take is 4.5v (Vmin of Vcc1), and that still has my motors (...) (25 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | communications
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Does anyone know where I could get some really good information concerning serial communication for the handyboard. I'm wondering if it's possible to have the handyboard communicate with a PC and vice versa. I'm looking for something wireless but (...) (25 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Data acquisition through analog input
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(...) Do you mean < www.glolab.com >. Victor (25 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Data acquisition through analog input
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Dear Mr. Kalyan, Maybe you can try those RF module from www.Glalab.com Look for their guide on connecting the holtek IC to their RF module. I believe that will help you a lot. Regards, William (25 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | Re: need a text editor
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(...) I highly recommend TextPad (www.textpad.com). I use it for writing all my C, Java and HTML code. It allows you complete control over formatting (auto-indent, tabs to spaces, etc.) and a multitude of useful tools, including parenthesis (...) (25 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | Sharp GP2D02 with out expansion board
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Handyboard Community, Has anyone written code for the GP2D02 sensor without the expansion board. I have a group of High school kids that have KISS institute robot kits. This kit comes with a handyboard and LEGO's but no expansion board. Being on a (...) (25 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | need a text editor
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What text editors do you guys use to write your IC code? I am on a Windows98 machine and having a real hard time finding one that doesn't add all of the extra formatting. Or is there an option that I am missing that I can turn the formatting off? (...) (25 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | Re: UK Suppliers
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(...) If you're prepared to mail order, you can get all the Handyboard stuff from the Robot Store, Hong Kong,www.robotstorehk.com I've found Patrick Hui to be most helpful and dependable. -- C S Soh (URL) where air is power (25 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Interfacing 2 Ultrasonic Modules onto one HB?
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Hello, I also would like to see a example of the sonars and expansion board hook-up. I also have a vector 2x compass module that was connected and working before the expansion board was added. Is it possible to connect the sonar and compass to the (...) (25 years ago, 17-Oct-99, to lugnet.robotics.handyboard)
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| | Interfacing 2 Ultrasonic Modules onto one HB?
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I am trying to interface two Polaroid 6500 ultrasonic ranging modules onto one HB to simplify my project. I know this has been done and it is probably very easy but I am not an electrical engineering expert and cannot figure it out. I have two (...) (25 years ago, 17-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Data acquisition through analog input
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Mr. Han, I think you can try to transmit the data through radio frequency transmitter to the receiver which is connected to the PC. I have tried this but it is digital data and not analog. Thanks, Wil. ----- Original Message ----- From: Chul Hun,Han (...) (25 years ago, 16-Oct-99, to lugnet.robotics.handyboard)
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| | UK Suppliers
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Can anyone help me? I'm looking for a UK supplier for the Handyboard, either as a kit or complete. I would also like some advice about how I could integrate the Handyboard into a A-Level physic department. I'm interesting in introducing robotics (...) (25 years ago, 16-Oct-99, to lugnet.robotics.handyboard)
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| | Re: interfacing the GP2D12
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Thats great Gary, This was the same conclusion that I'd come to myself, however I've now run into another problem with the otherwise brilliant 'D12 sensor. I'm currently using the Digitalker speech system from Jameco, and when the 'D12 is plugged in (...) (25 years ago, 14-Oct-99, to lugnet.robotics.handyboard)
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| | A java tool for real-time talking with people reading the same webpage.
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Hi, There is a java software called Wander at (URL) simply dragging and dropping a URL address or a Link to Wander window, you can see and talk to all the people who reading the same webpage right now. It is a good tool for on-line talking, (...) (25 years ago, 15-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Start_process problem
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alex, each of your processes must be an indefinite loop. otherwise starting them up via start_process just runs through once. so, e.g.: void checkir() { while (1) { if (digital(4)) { /* go backward for some time */ /* turn a little */ /* go forward (...) (25 years ago, 15-Oct-99, to lugnet.robotics.handyboard)
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