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Making custom sensors: What would be the demand?

Discussion specific to the intelligent brick, sensors, motors, and more.

Re: Making custom sensors: What would be the demand?

Postby mightor » 20 May 2012, 13:25

Doc,

I suppose it will be powered by the new anti-matter powered nano-batteries you've been working on in secret?

- Xander
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Re: Making custom sensors: What would be the demand?

Postby inxt-generation » 20 May 2012, 13:32

No, No. It'll be powered by Xander's new "making power while running code" microcontrollers, right?
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Re: Making custom sensors: What would be the demand?

Postby doc-helmut » 20 May 2012, 13:39

yes, Xander is right, but combined with superconducting solar panels...
making power by "power running code" is not possible because I only use NXC and so there are missing features by NXC (stack, heap, pointers, and pass-by-reference) which are strongly required for this implementation :)

ps
I also have a core of an old Israeli Atom Bomb which they once lost by a Starfighter mission during the Jom Kippur war. I discovered it in a geological depression on Golan during one of my last holidays in Middle East.

But then I suppose I will need to have my Tetrix back because of stability reasons...


...Ben...?
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Re: Making custom sensors: What would be the demand?

Postby doc-helmut » 20 May 2012, 20:51

inxt-generation wrote:
doc-helmut wrote:design proposal for a NXT-compatible Super Cube Sub System:

- connected to NXT by RS485
- external power supply (1-4x 12V RC blocks 4500 mAh each)
- 12 NXT encoder motor outputs
- 6 heavy duty PWM DC motor outputs (5A each)
- 6 external i2c highspeed ports (chainable; adjustable: 400kbps highspeed for external encoders or 100kbps lowspeed for other i2c standard sensors, high current supply)
- 6 RC servo ports (chainable)
- 12 analog sensor inputs
- 12 NXT compatible "i2c" sensor inputs for single "i2c" Sensors with super-slow motion 9.6 kbps and built-in pullups
- 4GB SD card slot
- connectors placed at all sides and the face.

compared to the prices of 4 single NXTs, the prices of tetrix accessoires, and the prices of several already available 3rd party motor- and sensor muxers it may cost round 1000 US$ (or even 1000 EUR or - in case - 1,000,000,000 Future Greek Drachmes ^^)

Image

well, that's - more or less exactly - what I need
(my target are Real-World-ROBOTS - not tinkering toys)
:)
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Re: Making custom sensors: What would be the demand?

Postby mightor » 20 May 2012, 21:00

Real world robots cost a lot more than tinker toys :) Are you prepared to spend the big bucks real world robots require?

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| RobotC 3rd Party Driver Suite: (http://rdpartyrobotcdr.sourceforge.net)
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Re: Making custom sensors: What would be the demand?

Postby doc-helmut » 20 May 2012, 21:17

yes, Sir.
I already spent 1500 EUR for Tetrix, about 500 EUR for 3rd party sensors which are not worth their money, 500 EUR for 4 NXTs and 200 EUR for multiplexers which sh** on compatibility....

Money for nothing (and not even at least chicks for free^^)
regards,
HaWe
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NXC CHESS for NXT: http://www.mindstormsforum.de/viewtopic.php?f=70&t=6790
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Re: Making custom sensors: What would be the demand?

Postby mightor » 21 May 2012, 05:10

Have you ever considered getting something like this? http://turtlebot.com/ / http://ros.org/wiki/Robots/TurtleBot

- Xander
| My Blog: I'd Rather Be Building Robots (http://botbench.com)
| RobotC 3rd Party Driver Suite: (http://rdpartyrobotcdr.sourceforge.net)
| Some people, when confronted with a problem, think, "I know, I'll use threads,"
| and then two they hav erpoblesms. (@nedbat)
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Re: Making custom sensors: What would be the demand?

Postby doc-helmut » 21 May 2012, 17:19

I see that for the first time (admittedly I haven't been looking around for other systems very closely). But it looks really nice - I will have to look more closely how the sensor and motor interfaces and the software are designed.
regards,
HaWe
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NXC CHESS for NXT: http://www.mindstormsforum.de/viewtopic.php?f=70&t=6790
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Re: Making custom sensors: What would be the demand?

Postby inxt-generation » 26 May 2012, 12:52

My tests of the pressure sensor seem pretty good. It looks to me as if it was designed for a 10-bit ADC. Using my LEGO air meter, 30 PSI = 300 ADC. 40 PSI = 400 ADC. That's pretty good! In fact, I may just need to divide the value by ten to get the PSI! So easy!
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Re: Making custom sensors: What would be the demand?

Postby mattallen37 » 26 May 2012, 13:57

What pressure sensor are you using?
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