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Topic: Your latest purchase (August 20th to February 11th) (Read 42824 times) previous topic - next topic

bld

Aug 20, 2011, 09:29 am Last Edit: Feb 11, 2012, 11:19 am by bld Reason: 1
Post what your latest purchase was, to give inspiration, or just have a small chat about it. :)

Old thread can be found here: http://arduino.cc/forum/index.php/topic,50154.0.html
captain-slow.dk | non contagious!

retrolefty

First in part 2  ;)

For the Wife:

http://www.ebay.com/itm/220825367671?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

buzzdavidson

Picked up a couple of these: http://www.mouser.com/ProductDetail/Sharp-Microelectronics/LS013B4DN02/?qs=sGAEpiMZZMt82OzCyDsLFMoJHsqwyMeG71TqA7JoCTs%3d

These are really neat little displays.  New(ish) tech from Sharp, memory LCDs are extremely energy efficient (15 uW for the 96x96 PNLC display, 50uW for the larger WQVGA model.  Yes, that's microwatts.).  Simple SPI interface, easy protocol.  No refresh required to display static images - set it and forget it.

Only a couple of minor quibbles.  First, the device has a tiny 10-pin FPC connector; ordered a breakout from proto-advantage which took a few days to arrive.  Second, the device is dual-voltage, requiring 5v for power and 3.3v for communication, which is kind of a pain.

I had the device up and running with a simple app in about an hour; will be working on a more full-featured library for the displays this weekend.  Mostly as an excuse to consolidate the best features of all of the display code I've written over the last couple of years  :smiley-roll:.  I'll post an entry on the playground when it's ready for public consumption.

Next up, a larger model: http://www.mouser.com/Search/ProductDetail.aspx?qs=muFWWzTLGEIPdePNc1A%2fNQ%3d%3d

Msquare

Havn't even had time to open it   ;)

liudr

That dremel table looks large-ish. How big is it?

cr0sh

Bought one of these for my UGV (posted this in another thread on linear actuators):

http://goo.gl/vbBle (goes to an Ebay auction for the actuator)

Sheepishly admitting this: I also bought on Ebay a press photo of the case of the short-lived 1983 TV show "Whiz Kids" (http://en.wikipedia.org/wiki/Whiz_Kids_%28TV_series%29) - I was big fan of that show as a kid, and it helped to influence me toward computing (I was 9-10 years old at the time). Not long after I got my first computer (a TRS-80 Color Computer 2 with 16K and a tape drive - woohoo!).

Whiz Kids is one of those shows during that time that had fairly good production value, but failed to find a real audience; it only lasted for 18 episodes. A couple of years ago I managed to score a set of homemade DVDs of all of the episodes that someone transferred from some old VHS tapes (they don't exist in any other format, AFAIK). So, this press photo will go in my "collection" of youthful nostalgia.

:)
I will not respond to Arduino help PM's from random forum users; if you have such a question, start a new topic thread.

liudr


http://www.cpu-world.com/sspec/SX/SX948.html

$5 following a local craigslist posting. This one unfortunately does not have FDIV bug :( but for $5 I' happy with it. The actual processor has lost some black letters.

Nick Gammon


So, this press photo will go in my "collection" of youthful nostalgia.


Speaking of nostalgia, I was cleaning out my junk today and stumbled across Adventure Quest for the Amstrad:



This was supplied on a medium that some of you may not have used for a while: cassette tape:



The game boasts that it has "225 individually described locations".

The instruction booklet informs you of how they managed to squeeze so much gameplay into 32 Kb of memory:


Please post technical questions on the forum, not by personal message. Thanks!

More info:
http://www.gammon.com.au/electronics

liudr

http://en.wikipedia.org/wiki/Level_9_Computing

Just read up on level 9. Good stuff. I remember I played a similar game on atari but I don't remember the name of the game. Any chance you're interested in trading this for one of my shields?

CrossRoads

Some AA batteries for my 1976 Casio calculator, going into 9th grade.
Still works like a charm. Display is still nice & crisp (not the blurry thing you see here). The slide switch sets the display to 2 decimal points.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

Msquare

#10
Aug 21, 2011, 04:41 pm Last Edit: Aug 22, 2011, 05:31 pm by Msquare Reason: 1
That dremel table looks large-ish. How big is it?
I still haven't opened it. Tomorrow I complete my 56th orbit about the sun when I will open it.

The box measures 38 x 27 cm.
--
Update
"Some assembly required" - the table is 20x40cm closed, and the gap can be 8 cm
(that clearly couldn't be in the box, so I must have measured the box wrong / typo)

Nick Gammon


Just read up on level 9. Good stuff. I remember I played a similar game on atari but I don't remember the name of the game. Any chance you're interested in trading this for one of my shields?


Sure, I'll send you a PM soon.
Please post technical questions on the forum, not by personal message. Thanks!

More info:
http://www.gammon.com.au/electronics

liudr



Just read up on level 9. Good stuff. I remember I played a similar game on atari but I don't remember the name of the game. Any chance you're interested in trading this for one of my shields?


Sure, I'll send you a PM soon.


Great! Thanks. Up to now all my tape program collection was one tape.



You will have to look hard. It's on the right edge. I've acquired some starwars games and other games from a local swap a while back BTW. Now I also have a FORTRAN book from 1966.

cr0sh


You will have to look hard. It's on the right edge. I've acquired some starwars games and other games from a local swap a while back BTW. Now I also have a FORTRAN book from 1966.


The First Book of Kim - that's a classic; I haven't found a copy of that one - yet. Though I do have a copy of Tod Loofbourrow's "How to Build a Computer Controlled Robot" - which used a Kim-1...

Heh - I noticed you had some BASIC books too; you might want to be on the lookout for a book called "Structured BASIC" by James F. Clark and William O. Drum (1983); classical BASIC textbook for schools - my high school used it back in the day, and I hated it (nothing about about gaming in it, just a bunch of accounting, database, and other business examples!). How I wished I had paid attention to it better when I got my first software development job at 18... :D

I was one of those "computer programming" students in high school who made and played games and graphics all day long, and took the class (one time I had it three separate periods in my senior year) just to get an easy "A" and have fun coding; my instructor would let us (me, and about three others who were dork coders) skip the tests and quizes. He once gave me the "assignment" to figure out how to read a pixel on the Apple IIe hi-res screen; this really wasn't an easy task, due to the weird memory layout of the screen (planar - sorta - but I didn't know that, then). He had told me he'd given the task to several of his more advanced students over the years, and none had cracked it. I spent a week or so on it, going over the Apple manual in depth, and learning how to use the ROM monitor to hand-assemble bits of assembler (I needed it because otherwise it was too slow in BASIC). Eventually got it to work, though!

It was only after I got into the "real world" out here in Phoenix, coding in PICK BASIC for my first software development employer, that I had wished I had paid more attention to that book. About 10 years ago I found a copy of it at a garage sale, and bought it as a reminder of my earlier software development years...

:)
I will not respond to Arduino help PM's from random forum users; if you have such a question, start a new topic thread.

liudr

That book didn't even say the year it was published so I put it in early 70's collection, together with a few programming books. I'm happy for you to have rediscovered your basic roots. Mine is a bit more difficult. I read a series of 4 books of fun basic programs and typed in every program with my brother. That eas how we learned basic, by transcribing good programs like we would when learning a humanly language. I hope to once again see those four books.

Gladly we have a few very senior professors that would clean out some bookshelves so I would be able to pick up old books on my way to work or home. These things are not tht easy to find any more. I will keep an eye for structured basic for my own collection. So, I thought you will start some computer museum. Any update on that?

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