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Certain items, most notably motors, are *significantly* cheaper than Pitsco if you order them through the LEGO shop-at-home catalog (1-800-453-4652). If you are ordering for an educational instititution and if you ask the shop-at-home people, you (...) (26 years ago, 15-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Shaft-Encoders
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(...) An old broken mouse is an excellent source for stuff like that. Perhaps even buying a new really really cheap one makes sense, just so you can scavenge it's parts. Just open one up to see. (26 years ago, 14-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Good source for Lego Technic parts?
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Hi Steve. one more suggestion for lego parts... Pitsco only advertises a limited number of part kits on their web site. Did you check out their Dacta catalog? In the back there are several pages of specific part kits (i.e. gears, individual motors, (...) (26 years ago, 14-Mar-99, to lugnet.robotics.handyboard)
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| | Shaft-Encoders
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Hi, Does someone have a good and cheap source for optical shaft encoders (or only the encoder disks) ? thanks, Simon (26 years ago, 14-Mar-99, to lugnet.robotics.handyboard)
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I actually use a NVRAM memory of Dallas company in place of 62256 and extern battery. I Want to replace in the same socket for a little pcb with 16 K rom and 16 K ram. I want to know how to do that? Its´s posible? I will need other IC to decode (...) (26 years ago, 14-Mar-99, to lugnet.robotics.handyboard)
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| | Source for Sharp GP1U581Y ??
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Can someone please point me toward a source for the Sharp GP1U581Y IR detector? TIA, - - - Nick - - - (26 years ago, 14-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Good source for Lego Technic parts?
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(...) <snip> (...) The best, cheapest place to get Lego Technic accessory parts is Lego Shop-At-Home, 1-800-453-4652. Ask 'em to send you a free catalog. In the back of each issue are a couple of pages showing all the miscellaneous motors, pulleys, (...) (26 years ago, 14-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Good source for Lego Technic parts?
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Steve: I bought a kit of parts from Lego to build the first robot mentioned in the mobile robot book by Jones and Flynn. I don't remember the kit number but I purchased the kit from the Lego Dacta division. You might try calling them to get a (...) (26 years ago, 14-Mar-99, to lugnet.robotics.handyboard)
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| | Good source for Lego Technic parts?
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Somewhat off topic: I'm looking for a good source of basic Lego Technic parts (beams, gears, axles, etc.) for robot construction. I'm not really interested in particular kits with specialized parts like the motorcycle, forklift, and such-- I just (...) (26 years ago, 14-Mar-99, to lugnet.robotics.handyboard)
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| | help me please,ic chip
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hello :) I use handy-board in my work. In one day ic chip to control motor has burn. The ic number is SN75441ONE in handy-board maunal the number U10 ,U11 L293D . I look number like this in ECG book it no have the number like this. If you know (...) (26 years ago, 13-Mar-99, to lugnet.robotics.handyboard)
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| | Re: How big is our community?
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it's about 500 people. fred In your message you said: (...) (26 years ago, 13-Mar-99, to lugnet.robotics.handyboard)
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Hi, have any of you guys tried wall following with 4 ir proximity detectors? I'm having trouble getting mine to work properly. I think the problem is with my program. I'll attach it in my next letter, hope someone could help. Thanks. F. Samonte (26 years ago, 12-Mar-99, to lugnet.robotics.handyboard)
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| | Sensors
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hi i'm trying to find a cheap and reliable infra-red digital sensor with a sensing range of around 0-30cm. does anyone have any recommendations? are there any online stores that sell a wide variety of such sensors? btw, the sharp GP2D05/02 sensors (...) (26 years ago, 12-Mar-99, to lugnet.robotics.handyboard)
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| | Servo Expansion Board
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Hi all, I have the Handy Board running fairly well, although I havn't tested ports, etc. Question. I have the expansion board, and when I try to run the init_servo (not exact) command, the board locks up. Anyone see this problem before? Thank you, (...) (26 years ago, 12-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Sensors
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Hi We just built a IR detection with a Radio Shack IR LED and their Sharp detector GD1U..whatever....cost a few dollars. Basically detects anything within about 60 cm, depending on what surface you are reflecting off of. We found that we had to (...) (26 years ago, 11-Mar-99, to lugnet.robotics.handyboard)
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| | RE: DC motor with encoders
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Thanks for the tip. Lotsa cool goodies. shan o (...) (26 years ago, 11-Mar-99, to lugnet.robotics.handyboard)
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| | Re: DC motor with encoders
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Hi ever heard of Maxon Motors (the one that supplied the Pathfinder on Mars with motors). They have hi quality low voltage motors. We are using them here. They have opticel encoders (HP) directly mounted. Price arouonf $120 for a 15W motor incl. (...) (26 years ago, 11-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Rs422/485 to RS 232 interface
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Thanks a lot, I had only one rs232 and I used to interface a display. I'll ceck the link to search it. Stefano ---...--- (...) interface (...) (26 years ago, 11-Mar-99, to lugnet.robotics.handyboard)
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| | How big is our community?
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Hi Fred, Maybe this is a little off topic, but it's still interesting, I guess: How many people are on your HB mailing list? How big is our community? Alf (26 years ago, 11-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Creating multiple serial outputs with the HB expansion board
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I have considered something like that and it sure would work but I was hoping to find a s/w based solution that didn't require changing the h/w. I only need outputs, 2400bps, and I dont need any of the more functional aspects of typical serial parts (...) (26 years ago, 11-Mar-99, to lugnet.robotics.handyboard)
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