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Mechanics and Construction / Re: what tool is next?
« Last post by DiegoChavez on August 18, 2014, 04:28:29 PM »
I am thinking of a 3d printer because it meets everything I said but my only question is if it can make things that are robust enough.
Mechanics and Construction / Re: what tool is next?
« Last post by waltr on August 18, 2014, 02:08:37 PM »
3D printer?
Software / Re: using the iphone as an rc transmitter
« Last post by waltr on August 18, 2014, 02:04:59 PM »
Can you use Google web search?
Misc / Re: "real" microcontrollers
« Last post by waltr on August 18, 2014, 02:03:22 PM »
It varies quite a bit. It could use a PIC12, 8 pin uC or ATiny or it could have a large SOC like a Altera Cyclone with dual ARMs and FPGA.

It all depends on the application and what the engineer chooses.
Mechanics and Construction / Re: 3D printing parts for fun!
« Last post by Billy on August 18, 2014, 11:19:25 AM »
but it'll be quite some time before I'm finished :P

I see, it's commercial. Still cool you're willing to do a few for free.
It could really get someone through a deal breaker on a robot project. With so many ways to get distracted these days, needing a part you can't buy (or make) could make the difference between a life long interest in making and getting sucked into a gaming habit. 

Over the weekend I modified SW to allow the printer(CNC) to read PLT files from EAGLE PCB editor, so it can now machine simple two layer PCBs. Maybe I should agree to help in the same way.
Misc / "real" microcontrollers
« Last post by mstacho on August 18, 2014, 07:17:00 AM »
This may be a weird question so I figured it should go here:

I've spent most of my time in academia, only really working on industrial projects as a student but never in a full-time industry position.  I'm now working as a lab demonstrator at a university where I'm supporting the mechatronics program, and there is a lot of emphasis on small robotics projects.  Previously, I've used things like the axon and the arduino, as well as the ARM Cortex M-series chips for some special projects.  Currently, we're working with a TI MSP430g2553. 

What strikes me most about the TI chip is its limitations: 16KB flash but only 512B ram.  It's in a 20-pin package so it's hard to find enough pins (or we need to keep switching peripherals on and off to get the labs working).  Oddly, it's a 16-bit uC instead of 8.  It's been weirdly fascinating working with it because it forces me to think REALLY hard about how to use it appropriately.

It got me wondering something: in a project for a company where a uC is necessary, would there ever be a reason to use such a limited chip?  They aren't all that expensive, but neither is, say, a Cortex M0.

For that matter, what does a project using uCs "look like" in an industrial setting?

Just curious,

Mechanics and Construction / what tool is next?
« Last post by DiegoChavez on August 17, 2014, 11:52:34 PM »
I have asked before for advice in tools but I just gave 2 options now I am giving any option possible. what I want is a long lasting high quality machine that helps me make things in a quick period of time and prototype fast. but the things should still look good and perform even better. open for suggestions.
Mechanics and Construction / Re: Robot Kit
« Last post by DiegoChavez on August 17, 2014, 11:34:55 PM »
ez-robot. I bought one about a year ago and it was awesome it has some cool features and a great support comunity. it is also relatively cheap. here is the link, explore their web page they have some very cool stuff!
Electronics / Any recommended generic receiver for SCTX2B Transmitter?
« Last post by aalzamora on August 17, 2014, 08:53:36 PM »
Hi, I'm new into this field and in the forum too.

I have a 27mhz RC control from an old Raptor 700 toy. This control has a SCTX2B chip as transmitter.

I'd like to know if it is possible to use any generic receiver chip other than the one that comes originally with the toy (i guess it is the SCRX2B chip).

If so, can you guys recommend me any other (generic?) receiver chip i can use with this transmitter?

Please, i'm economically poor so far, and i'd really appreciate if you could provide any ideas of from what old-scrap device i can get any scavenged option as receiver for this transmitter so i can interface them and use in my projects.

Thanks a lot.
Electronics / Re: Good transmitter for RC/robot
« Last post by DiegoChavez on August 17, 2014, 06:03:46 PM »
I would go for a well known controller for a first project just because you can find a lot of tutorials online and get a lot of help in forums like this one. If you need many channels I would go for and spectrum dx8 or a Futaba 8JA 2.4GHZ S/FHSS. This is my advice but I'm just a guy after all is your robot so you get to choose.
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