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(...) A quick check reveals that a replacement part for the polyswitch fuse is 60R250 (Littelfuse) or the Bourns MF-RX250...I'm sure there are others. If you can't find one of these resettable fuses, you could likely use any 5amp fuse and just (...) (25 years ago, 12-May-99, to lugnet.robotics.handyboard)
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| | charger
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what i am doing is building a battery charger for back-up batteries to be used with the handyboard, so i don't have to wait for the batteries to charge. can i use the schematic that i found in the handy board technical reference manual except (...) (25 years ago, 11-May-99, to lugnet.robotics.handyboard)
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| | Re: transmitting via airwaves
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(...) module. (...) it (...) I love the RF products radiometrix has, but none of them are FCC compliant (execpt one, but it is relatively low featured). does anyone know of any companies which sell products like them which are FCC compliant? (25 years ago, 11-May-99, to lugnet.robotics.handyboard)
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| | zxt614,rue250
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Hi! im building the handy board interface with a friend. Both of us live in mexico city and we have not found some parts like the ztx614 transistor darlington arrangement, we would like to know which is the gain of each transistor in this (...) (25 years ago, 11-May-99, to lugnet.robotics.handyboard)
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| | DS1233
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Does anybody know the motorola susbtitute for the (Dallas Semiconductor) DS1233-10, because in Mexico the DS1233-10 does not exists. And I can´t find it on the electronics books. Thanks for the help Daniel ---...--- " `BETTER´ IS THE ENEMY OF `GOOD (...) (25 years ago, 11-May-99, to lugnet.robotics.handyboard)
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| | Unsubscribe
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Please unsubscribe me from the handy board mailing list. Rich Connelly (25 years ago, 11-May-99, to lugnet.robotics.handyboard)
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| | Re: DS1233
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Daniel, You can use the Motorola 34064, I used it in both of the Handyboards I build. ***WARNING*** the Motorola 34064 and the Dallas Semiconductor DS1233-10 have different pins out. They are both in 3 pin to-92 packages. I don't remember which two (...) (25 years ago, 11-May-99, to lugnet.robotics.handyboard)
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| | RE: SHARP new product
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I believe the expansion board "lego" connectors do no have the pull-up resistors, so you should be able to connnect the GP'12 directly to these ports without modifying the HB... PS. $7 is about 3x cheaper than what they are here... -Drew (...) (25 years ago, 11-May-99, to lugnet.robotics.handyboard)
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| | Sensors & Parallel Port
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Hi, I'm not sure if I recently had a day dream about interfacing sonars directly with the parallel port, or I actuallydid see a web resource containing such info... Has anyone here seen such resource, or had the same day trip ? Best, Andre Philippi. (...) (25 years ago, 11-May-99, to lugnet.robotics.handyboard)
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| | Re: transmitting via airwaves
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(...) Scott, I did a RF communications between two boards before, and use the DVP module. The only problem is that I can only received data effectively at 300 baud. I want to do some video transmission, but I don't have the time to finished it - I (...) (25 years ago, 10-May-99, to lugnet.robotics.handyboard)
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| | Re: SHARP new product
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(...) Yes, you are right. I choose gp2d12 mainly because - I have so many code to load to the board. With this, I don't need to load the .icb file that goes with the gp2d02, instead use the analog() commands directly to get the distance. But be sure (...) (25 years ago, 10-May-99, to lugnet.robotics.handyboard)
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| | Re: transmitting via airwaves
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[shsc9801@condor.stc...state.edu] spake unto the ether: (...) We have done this the last 2 semesters with our Autonomous Robotics course here at CWRU ((URL) I bought a $125 color CCD camera from DigiKey and a $23 VHF transmitter kit from JDR (...) (25 years ago, 10-May-99, to lugnet.robotics.handyboard)
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| | Battery question
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If you connect the batteries in parallel you will increase the current which is something i'm not sure you want to do. if you connect them in series it will increase the voltage which is what i believe you would like to do. the problem comes because (...) (25 years ago, 10-May-99, to lugnet.robotics.handyboard)
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| | RE: SHARP new product
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Does anyone know where these can be found? I would really like to try some of these out on a new project that I am working on. Thanks for any help! Bill Denzel -----Original Message----- From: maja@robotics.is.tohoku.ac.jp (...) (25 years ago, 10-May-99, to lugnet.robotics.handyboard)
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| | transmitting via airwaves
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Hello, Has anyone tried transmitting such things as a camera (like they have in Jameco) from the handyboard to a computer or tv? The only problem I forsee is powering the transmitter. Anybody have any ideas? Scott Scott Sherman IT Spec. II St. Cloud (...) (25 years ago, 10-May-99, to lugnet.robotics.handyboard)
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| | Battery question
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Hello all, I currently have a 12v 2amp camcorder gel-cell as a motor power source for some 12-24v gearhead motors purchased from Acroname. I am using stacked L239's and TI motor driver chips to interface. All is working, except that the motors only (...) (25 years ago, 10-May-99, to lugnet.robotics.handyboard)
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| | RE: SHARP new product
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Steve Richards of Acroname says he will be carrying both the GP02D12 and GP02D15 within the next few weeks...<smack!> -Drew -----Original Message----- From: Bill Denzel [mailto:wdenzel@poly...lpoly.edu] Sent: Monday, May 10, 1999 2:35 PM To: (...) (25 years ago, 10-May-99, to lugnet.robotics.handyboard)
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| | Re: Sharp 2L01
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Scott Sherman wrote: <snip> (...) Scott: The Hamamatsu P5587 photoreflector is great for use as a shaft encoder. It's available from Zagros Robotics at: (URL) - - - Nick - - - (25 years ago, 10-May-99, to lugnet.robotics.handyboard)
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| | RE: SHARP new product
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It seems the advantage is you don't have to worry about the control line, the gp2d12 does it all, alleviating the need for the interrupt routines... -Drew -----Original Message----- From: shsc9801@condor.stcl...dstate.edu (...) (25 years ago, 10-May-99, to lugnet.robotics.handyboard)
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| | Sharp 2L01
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Hello, I am considering what circutry to use for shaft encoders and one of them was the Sharp 2L01 because of its casing (mounting position mainly). However, I am having trouble trying to find it or anything close to it for that matter. Does anyone (...) (25 years ago, 10-May-99, to lugnet.robotics.handyboard)
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