 | | help needed for ir sensors & memory addressing latch
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Hi all, I am new to robotics and have great difficulty trying to get the near-infra emmiter and detector on the HB to work properly. After studying the schematics, I figured out to activate J7, I should do a bit_set(0x1000,0b01000000) which appears (...) (26 years ago, 7-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Steppers
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Dear Terri, If the motors turn sparatically, that means the coils are probably not hooked up in the correct order. Try swapping them around and see if anything improves. The motors you are using are the bipolar type. There is a decent way of hooking (...) (26 years ago, 6-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Serial line interrupt
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(...) to (...) about (...) Hi, you could simply build and Acknowledge routine so that every character sent by the PC could be echoed back by the HandyBoard. It asks a bit more of processing time from the HandyBoard, but at least it's simple to build (...) (26 years ago, 6-Jul-98, to lugnet.robotics.handyboard)
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| | Steppers
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Hi. I was reading through a compilation of emails from the Handy Board Q&A and found a lot of great questions, but no answers to them. I am trying to power some steppers, microsteppers from the RobotStore catalog, with the HB and am not having much (...) (26 years ago, 6-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Serial line interrupt
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(...) I had the same problem a few weeks ago, ended up writing an interrupt handler for the Handy Board which will buffer up the incoming serial information so that none of it is lost. I guess the Handy Board normally just polls the serial port (I (...) (26 years ago, 6-Jul-98, to lugnet.robotics.handyboard)
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| | using the MC34064 LVI
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Hello, This is a warning for anyone considering using the Motorola MC34064 to replace the DS1233. I have just built a couple handyboards and I had some problems getting them working. I finally tracked the problem done to the LVI. I used the MC34064 (...) (26 years ago, 6-Jul-98, to lugnet.robotics.handyboard)
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| | Serial line interrupt
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Hello all, I'm currently trying to communicate between the Handy Board and a PC (i486) using the existing serial line between the two. Sending data from the handy Board to the PC is no problem. An interrupt handler puts all incoming serial data into (...) (26 years ago, 6-Jul-98, to lugnet.robotics.handyboard)
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| | Connecting radio module (BiM 418 F)
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Hello all, I would like to be able to 'drive' my robot using the Handy Board via a radio link. For this purpose I have bought two transceivers, the Radiometrix BiM 418 F. How can I connect it to my Handy Board? The wiring is as follows (leaving out (...) (26 years ago, 6-Jul-98, to lugnet.robotics.handyboard)
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| | Stepper motor
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Hi, I trying to make a home page about interfacing handy board with stepper motors, I hope it has enought quality to add a little contibution to the handyboard effort. For now I has just two part : One is just mails I found in the mail archive about (...) (26 years ago, 6-Jul-98, to lugnet.robotics.handyboard)
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| | test
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thanks for ignoring this message! Sorry, but I have not been getting sny HB messages for a week, and I wanted to see if it was a problem at the HB end or mines. Thanks! phil (26 years ago, 6-Jul-98, to lugnet.robotics.handyboard)
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| | Re: data acquisition
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yes, you can write a program for IC to print the information to the serial line. see the FAQ for information about using the HB serial line from an IC program. Fred In your message you said: (...) (26 years ago, 5-Jul-98, to lugnet.robotics.handyboard)
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| | ds1233-10
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Can anyone recommend a good supplier for the ds1233-10 (or MC34064) and also the IS1U60??? Thanks in advance.... Owen (26 years ago, 5-Jul-98, to lugnet.robotics.handyboard)
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| | Uploading arrays
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Dear All I intend to log the data from up to seven analog inputs, and 2~3 digital inputs, in an integer array every minute for up to an hour, and then upload the data to the PC and import it into MS Excel. 1) Could anyone point me to any IC software (...) (26 years ago, 5-Jul-98, to lugnet.robotics.handyboard)
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| | data acquisition
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this message is especially for Fred Martin: is there any way to retrieve a large integer array (1000 or so elements) from the handyboards memory, and save it in a file on the PC? thank you. Justin D. Gullotta.. , Engineer, Rensselaer Polytechnic (...) (26 years ago, 5-Jul-98, to lugnet.robotics.handyboard)
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| | Re: 7-Segment multiplexing
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There are plenty of seven seg driver chips out there that you can connect to the HB. Look some up on the web (data sheets are all over the place! try a search engine). I have experience with a nice chip that drives four seven segs with serial input, (...) (26 years ago, 4-Jul-98, to lugnet.robotics.handyboard)
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| | Re: check_sensors.c
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(...) All C declarations must be terminated with a semicolon. Try : int num_sensors = 6; ^ (...) is this legal syntax for "while"? Try: while (1) (...) If you just wanted to print out the analog sensor value, do you really want to dump them into an (...) (26 years ago, 4-Jul-98, to lugnet.robotics.handyboard)
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| | Oyxgen sensors on Handy Board?
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A rather unusual question: I am interested in building a rebreather scuba diving device with a handy board as "brain" to control oxygen partial pressure and some other stuff. Did anyone ever hook up an oxygen sensor to a handy board or has anyone (...) (26 years ago, 3-Jul-98, to lugnet.robotics.handyboard)
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| | check_sensors.c
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Hello All, I would like to write code for the handyboard to constantly monitor inputs. I copied this this code from the mail arcives 3-22-97, whats wrong?? Thanks in Advance Terry Gathright 669@worldnet.att.net /* GLOBALS*/ int num_sensors =6 /* put (...) (26 years ago, 3-Jul-98, to lugnet.robotics.handyboard)
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| | 7-Segment multiplexing
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Hi, does anyone know how to efficiently multiplex 5 seven-segment displays? What I'm doing now (turn on the segment drive, turn on the digit drive, turn off everything, repeat) causes rather unacceptable flicker and has the displays at different (...) (26 years ago, 3-Jul-98, to lugnet.robotics.handyboard)
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| | One Handy Board available for sale.
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I am selling the Handy Board that I have because it is not fast enough for the application that I wanted to use it for. I am involved in decoding highly compressed sound files in a stand alone unit and the 6811 just can not hack the speed. I have (...) (26 years ago, 2-Jul-98, to lugnet.robotics.handyboard)
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