 | | Mac universal bluetooth filebrowser.
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Hi, i have written a little filebrowser for Mac OS X - Tiger (10.4.X). The DMG can be downloaded from (URL) site>. -- Carsten (18 years ago, 6-Dec-06, to lugnet.robotics.nxt, FTX)
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| | Re: nxt + i2c sp03 Text-To-Speech?
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(...) There are chips available to convert ASCII text to allophones, although this would increase the power requirements. One example: (URL) actually used such a combination (many years ago) to build a simple speech synthesizer board for my apple (...) (18 years ago, 5-Dec-06, to lugnet.robotics.nxt)
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| | Re: nxt + i2c sp03 Text-To-Speech?
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(...) That is pretty much exactly what I was talking about. Of course, such a chip cannot increase the available power, it can only tweak the ratio between voltage and current. So this might work for some applications, but perhaps not in this (...) (18 years ago, 5-Dec-06, to lugnet.robotics.nxt)
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| | Re: nxt + i2c sp03 Text-To-Speech?
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(...) If I'm understanding things correctly, could something like this work? (URL) appears to be able to take 2.5 - 5.5v in and give up to 5v out at up to 90mA. It would be great if it could be powered from the sensor port directly instead of having (...) (18 years ago, 5-Dec-06, to lugnet.robotics.nxt)
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| | Re: nxt + i2c sp03 Text-To-Speech?
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(...) I'd say its worth a try from the 4.3v supply from the NXT. I note that the SP03 spec. says it has a 3v regulator onboard, so its not really running from 5v anyhow. The I2C signals are open drain, so they should be ok unless their inputs won't (...) (18 years ago, 5-Dec-06, to lugnet.robotics.nxt)
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| | Re: nxt + i2c sp03 Text-To-Speech?
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(...) It sounds like the NXT probably doesn't have enough power available to run that chip, but you might look at using a BUC (Boost-Up Converter) component to bring the 4.3V supply up to a higher level? I've only been peripherally involved with (...) (18 years ago, 5-Dec-06, to lugnet.robotics.nxt)
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| | Re: nxt + i2c sp03 Text-To-Speech?
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(...) Yes, but unfortunately the 9V sensor supply is limited to 15mA just like the RCX sensor supply. Not easy to power a module that consumes 80mA... Philo (18 years ago, 5-Dec-06, to lugnet.robotics.nxt)
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| | Re: nxt + i2c sp03 Text-To-Speech?
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(...) That would be the LOWSPEED_9V flag? (...) I just might do that. (...) The chip used in the book I have is the SpeakJet (URL) It's a LOT cheaper than the sp03, however, it uses a serial interface and would be a lot more complicated. I'd have to (...) (18 years ago, 5-Dec-06, to lugnet.robotics.nxt)
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| | RE: nxt + i2c sp03 Text-To-Speech?
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The NXT can also optionally apply 9V to I2C sensors on the same input/wire that is used for reading the analog values. There's a flag to set this up. I know it is accessible in RobotC and I think you should also be able to set it up via NBC. SO (...) (18 years ago, 5-Dec-06, to lugnet.robotics.nxt)
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| | Re: nxt + i2c sp03 Text-To-Speech?
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Hi Tony, (...) Nice little beast! (...) Most probably it should work. I am a bit more concerned about current consumption (80mA - not 80mAH as shown in documentation!), since the 4.3V supply can deliver 180mA for ALL seven NXT ports. You may also (...) (18 years ago, 5-Dec-06, to lugnet.robotics.nxt)
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| | nxt + i2c sp03 Text-To-Speech?
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I'm a software guy, not a hardware guy. I have very little experience designing circuits. To show how little I know, I'm actually reading through Electronics Projects for Dummies at the moment. ;) Well in this book they describe a simple (...) (18 years ago, 5-Dec-06, to lugnet.robotics.nxt)
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| | Re: NBC-NCX Experiences
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(...) The simple answer is that NXC does not yet expose that functionality. I am feverishly working on implementing that API. I apologize for the compiler problems. John Hansen (18 years ago, 3-Dec-06, to lugnet.robotics.nxt)
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| | NBC-NCX Experiences
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Hello NXT-Community, currently I make some tests with the very nice NBC-NXC compiler. My first tries to drive the Tribot around were successfully 8-) But now my question is: How can I access sensors from NXC ? All my attempts causes the compiler to (...) (18 years ago, 2-Dec-06, to lugnet.robotics.nxt)
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| | NBC Debugger
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Tamas Sorosy has recently made his awesome NBC Debugger available via his website. (URL) this page you will find a link to the NBC Debugger as well as his excellent NBC math library. To use the debugger you should download the very latest test (...) (18 years ago, 1-Dec-06, to lugnet.robotics.nxt)
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| | Re: Date/Time Clock for NXT?
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(...) I think so too. One solution to the problem would be an I2C clock "sensor", such as MindSensor's (URL) one is not directly adapted to NXT, but if there is some demand it would not be hard to do... Philo (18 years ago, 1-Dec-06, to lugnet.robotics.nxt)
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| | Re: Date/Time Clock for NXT?
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In article <J9Jv4v.nDo@lugnet.com>, Dick Swan <dickswan@sbcglobal.net> writes (...) This question seems straightforward. In the hardware schematic PDF that Lego have published there is a block diagram of the "Power Block" on page 4. This does indeed (...) (18 years ago, 30-Nov-06, to lugnet.robotics.nxt)
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| | Re: Date/Time Clock for NXT?
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Hi Dick, (...) that is all less than crystal clear from the AT91SAM7S data sheet, but plausible. (...) I think so, too. On page 2 at the left there is the circuit which generates VCC3V, and it is controlled by the AVR via P_EN. The 1.8V for the core (...) (18 years ago, 30-Nov-06, to lugnet.robotics.nxt)
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| | Date/Time Clock for NXT?
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A date/time clock would be a useful addition to the NXT. Naturally, it should continue to operate even when the NXT is powered "down". So here's a question for any hardware gurus that have a good understanding of the NXT schematic. The ARM processor (...) (18 years ago, 30-Nov-06, to lugnet.robotics.nxt)
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| | Re: Extreme NXT: Extending the LEGO Mindstorms NXT to the Next Level
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In lugnet.robotics.nxt, Didier Enjary wrote: (URL) (...) Thanks for the plug, Didier ;o) Still some time before the book hits the shelves... Philo (18 years ago, 24-Nov-06, to lugnet.robotics.nxt)
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| | Extreme NXT: Extending the LEGO Mindstorms NXT to the Next Level
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Hi, Sorry I'm quite unused with lugnet.robotics groups and I don't know if this has been announced yet. (URL) Philo, Michael and Isabelle (philo's delightful daughter) authored a book about NXT !! Didier (18 years ago, 23-Nov-06, to lugnet.robotics.nxt, lugnet.books)
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