So talk to me about your projects....
Oldbitcollector (Jeff)
Posts: 8,091
Yeah, it's summertime and we know you have either been in the pool, or on vacation, but it's also HOT outside! Time to come back inside and cool off at your workbench!
I want to know what projects you are working on! I've probably posted my Double Propeller/PMC project to death, so I won't list it again here, but...
What projects are you working on this summer?
(Bonus points awarded for pictures, extra bonus points awarded for videos!)
Jeff
I want to know what projects you are working on! I've probably posted my Double Propeller/PMC project to death, so I won't list it again here, but...
What projects are you working on this summer?
(Bonus points awarded for pictures, extra bonus points awarded for videos!)
Jeff
Comments
I took my USB2SER device that I program my Propeller Proto Boards with and have adapted it to work with RS422 drivers and receivers at one end of a 100 feet of CAT5 cable. At the other end is its mate that plugs into the Propeller Proto Board at TTL interface levels.
So now I can have a programmable Propeller at the end of a very long wire. While 100 feet may seem long, the RS422 should go much further.. thousands of feet... maybe a mile or more.
Mostly I just want to use it with Forth on the Propeller projects and 'in theory' one doesn't need to reprogram the Forth.. a duplex serial link might be enough. But there are always the occasional exceptions due to some sort of 'brain wave' and it will help to avoid walking a mile to reprogram in such instances. Thus, the _RST is provide for as well. There are 3 twisted pairs providing a Full Duplex plus the _RST line.
Actually, I think I finished the soldering and all the construction earlier this evening. But I have learned the hard way to get a rest and verify everything the following day rather than just try to power up.
So we shall see.
Since I already had the USB2SER and many components, the total cost was 4 SN75179 chips at about $1.10USD each, or $4.40. If I added in everything on hand and excluded the $15 USB2SER, it was still only about $10 US total. The project was inspired by seeing how extremely costly long distance USB can be.
You can just have the USB convert to RS422 and everything becomes a saner solution.
The tester comprises of the QMP touchscreen, a quickstart and sandwiched between them one of your quick proto boards to hold the line driver and ADC chips, resistors and caps.
When I finally finish it I hope to post details in the project section.
Then buying a few sheets of plywood and a circular saw...
And if I find the time(between hiking, reading webcomics, playing computer games and pretending to clean my apartment) I may finally start programming my Spinneret...
Wish me well...
Other than that, gotta seal the yard fence and pergola for winter, and I'll be off to Bangladesh for most of July.
Thanks to this forum I have found out about the 74LVC 5V to 3V3 series so this is a way of interfacing to the older 5V technology.
'til everything goes to 1.2V, anyway
I for one will be watching with interest.
While I didn't break anything, first attempts have fail to get communication. And so, I'll have to ponder some further work. Everything is getting power. But the USB2SER seems to be unable to recognize my RS422 chips and behaves as if there is no connection.
Minicom provides a report than no ttyUSB0 port to be found in Linux. So it seems that something needs to be resolved around the USB2SER end. A hot swap directly to the Propeller Proto Board begins to blink the USB2SER leds and Forth becomes immediately active on a reboot.
Yes the 75LVCxxx can make a lot of builds much easier. I just can't get them easily in Taiwan and don't want to order abroad.
I am wondering why you decided to add a Z80 to a Propeller design.
I agree with Andrew, there really isn't much time. However for some reason the Propeller has invaded my grey matter the last couple of months and I have been designing and coding with the few spare hours I can find in a week. Working a really big project which has fired of a bunch of spin-off projects. Having way too much fun.
Here are a couple of the spin-off projects;
4 channel battery charger;
- I need it for charging Gel Cell lead acid batteries, but technically as long as you know how to charge a battery then you may be able to program it to charge other things.
- Measuring voltage, current and temperature of each battery, and providing the voltage the battery needs (via an LM317T, with an old notebook power pack (+19V at 4A)).
- I'm using an RN-131 as a Web Interface and plan to incorporate a uSD card for Web page images and data logging.
While Building this I've got plans for a new board that incorporates the RN-131 and uSD with a Prop, EEProm, 3.3V regulator, pins for a prop plug and then the rest of the pins going off to a header. I can re-use that in all of my projects.
I've got a bunch of other projects on the boil, too many to list. Just wish I had more free time to keep working on them!
Fake Supercomputer
Spin Brain
Supertronic Spin Brain
Cherry Pie
Mobile Transport Lab 56
Humanoid Robotics Lab 57 in South Korea
On your blog for Spin Brain, you list a lot of software and documentation for Spin Brain which appears to make it operational and a repeatable test base in our own "labs". I couldn't find any links to a link to a .zip or a repository or any other place where this software and documentation is collected and available to other Propeller users. Can you please provide that? I think this package is something a lot of forum members would like to try on their own.
These are some of the items you list as available software:
STARTER BRAIN SOFTWARE
Spin Brain RTOS - Real Time Operating System (timing, multi-threading)
AtOnce Loader - Loads code into all chips at approximately the same time
Enumerator - Auto assign addressing to each chip
Enumerator Viewer - LED displays each chip enumeration
Chip Enhancer - Loads 1000 VProcessors per chip
VProcessor Demo - Simultaneous operation of 1,000 programs per chip
Parallel Slicer Processing Cruncher - Haldivployment parallel equation solution algorithm
Evo Demo - Loads, enumerates, evolves cogs to a unique personality
Learner - Learning program provided for 5-chip modification exercise
Spin Brain Manual - Describes details about the Spin Brain
If nothing else, a video of Spin Brain going through it's loading sequence and running some of the demo programs you list would be fascinating.
Thanks!
While interesting concepts, H's software is generally vaporware, held under nondisclosure, or locked a government facility.
The biggest deal is keeping the bot kit "all parts in the box, no tools required" and under $50.
I myself am ready for a straight jacket due to chasing the few bugs my ambitions create. The Propeller and winter? Better than writing the next great Russian novel.
I know but this one has demos and an OS and a loader and everything! Having a Demo makes me think that you could ACTUALLY demonstrate to something WORKING!
It never hurts asking. Maybe one day we will all be surprised and some of the claims will actually be verifiable and repeatable with software he provides. Until then, every so often, I'll just ask the questions so new folks see what is going on.
Anyway, development will be interrupted by a trip to Mexico. Someone really ought to go fly the Baja coast - may as well be me.
Thanks for taking one for the team!
Thanks for viewing the blog. It's not vaporware or free - plus youll need a Spin Brain to run it, which will be sold as a product. Announcements will be forthcoming when eCommerce is in place. A demo vid is a good idea.
Google totally fails at finding a picture, I'll have to take one of the intact unit in our lobby museum. Here's the PCB, which is still functional and contains all the power supplies and drivers for 4 digits + sign + NE2 "error" indicator: (There's no point adding a Nixie to the empty socket, even if I hadn't sold all the spares; it's for an unswitched dead zero.)
My CNC router should arrive Tuesday. That should be the inspiration for many summer time projects.
http://forums.parallax.com/entry.php/2562-Summer-Projects
For just $50, might also be effective to keep neighbor's dogs from pooping in your yard!
I wonder how long that 9V battery lasts...