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I haven't been around embedded prototyping for all that long and after couple of attempts soldering 0.5mm pitch LQFP 48/64 had so far been a breeze for me, even with no magnifying glass whatsoever. I...

I vote for cheap and low power wireless communication device that one can attach to micros like propeller and make them talk or create a communication network.

if you plan to feed only 5v, i'd think you need to use something called a "very low dropout" linear regulator. One i am successfully using for 5v->3.3v regulation is this one: LD29080DT33R from ST...

...or redirect the high voltage from an ignition coil to the driver's seat http://forums.parallax.com/images/smilies/freaked.gif

last time i read that thread, code protection was promised for Prop2

i agree it would be nice to have some dedicated silicon for SPI. I implemented a slave SPI code (and posted it in this forum)...

no, no apology is necessary :) just wanted to make sure my request is reasonable (in terms of cost/benefit for the community)

wholeheartedly understand the limited time/effort thing
just at the...

i guess the below is out of consideration?

Hi Brad

I have yet to try your tools, but i just though of a feature for you that would be very handy for pasm optimizations: Preprocessor commands for automatic loop unrolling (not sure if...

indeed Rich that's a shortcoming.
I guess this binary piece of info can be obtained from some cheap radar type of solution (something that would sense reflecting off the ground)

pun intended, i presume ;)

Never had experience with paste, ovens and reflow. Tried soldering .50 pitch LQFP64 and was amazed how easy it is with a decent iron and a soldering wick. I didn't even...

thanks for commenting Phil

This is exactly how i see it and here is why i think it will work:
When the bike is upright and standing still (or going along straight line), the only force is...

Hi

I am just curious why my proposition wasn't considered? I though about it some more and it really does seem like it would work well (according to my grade 8 physics diagram). Just put some...

Ok here is the code. I've optimized it to run seemingly error free @ about 1.125Mhz SPI clock
things could be unrolled further (resulting in huge mess) but i think the bottleneck will still be the...

Ah Phil, you really had me going there

"What? the mighty Phil is stuck in pasm and asking for help?! no way"

interesting problem

i though about it a bit, and i think you can estimate the tilt angle with just 1 Axis accelerometer.

here is how:
1. fix the accelerometer with the axis pointing up/down. ...

Just curious if there is any prior art for implementing an SPI Slave on a prop

In my continuing efforts to come up with a framework of marrying a prop to another MCU, i've implemented a simple yet...

Indeed it is a shame how such a great forum could reside on such crappy host (i constantly have problems with connection, other sites work fine, so it's not my connection/provider) and have such...

That's the reason for CAN transceivers http://forums.parallax.com/images/smilies/burger.gif

I have read a bit about CAN operation and it didn't look like something impossible for a prop, even...

Thanks Cluso

you've just saved me a bunch of hub ram http://forums.parallax.com/images/smilies/wink.gif , as i was going to pad each pasm chunk to get 2k overall size. You're right that padding...

Thanks a bunch Ariba

Hi Owen



lack of your own interest or interest from community ? If the latter, you are in luck http://forums.parallax.com/images/smilies/wink.gif cause i really need a linux tool to generate...

yes, i am very happy. weekend well spent! ;)


I have another COGINIT question for gurus: i know it's a hub instruction: Is it guaranteed that when the COGINIT returns, the cog is up and running...

Hi all

I mentioned this subproject of mine before, but i have reached an important milestone in it this morning, so let me lay it out for you so you can give me your suggestions and feedback
...

My thoughts exactly. I am really hoping there is going to be another such contest next year.
Good projects take time.

I agree that a prop would probably make a very nice gui backend for other MCUs.
I was recently inquiring about a possibility of using prop as a vector graphics accelerator, not just a video backend ...