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dorkbotSF Swap Meet February 15, 2011

Posted by k0re in Events, Meeting Archive.
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Part of the upcoming dorkbotSF #56 at WHQ – Feb 23 2011. Doors open at 7:30pm – swap meet commences after the last presenter!

From Anders Nelson:
PIC/AVR/Luminary MCUs, development kits, I2C/SPI/parallel LED drivers (self-refreshed, externally clocked, and static) I2C devices, SPI devices, HD44780 LCD displays, high-output LEDs, LDOs, solid core wire, etc.

From Joe Grand:
Through-hole in tubes
———————
Microchip PIC16C57C DIP-28N (500+ pieces)
Alphanumeric LED, 0.5″, high efficiency red, DIP18, Lite-On LTP-587HR (Digi-Key #160-1108-ND) (10 pieces)
Dual 7-segment LED, 0.56″, orange, DIP18, Fairchild MAN6610 (20 pieces)
General Instruments MBR1060 Schottky Diode Rectifier, 10A, 60V, Vf 0.8V, TO-220-2 (659 pieces)
Vishay MBR3060PT-E3 Schottky Diode Rectifier 30A, 60V, Vf 0.76V, TO-247D (18 pieces)
Samsung KM6264AL-10 8K x 8 CMOS SRAM, 10nS, DIP-28 (166 pieces)
UM61256FK-15 SRAM/Cache (DIP28) (88 pieces)
Toshiba TC5517 2K x 8 SRAM (http://legacy.afonsomiguel.com/Datasheet/2016.html) some APL, some BPL-25 (72 pieces)
MicroPower Direct D223RW 2W, 24V input/12V out DC-DC converter (similar to NDL2412SC) (45 pieces)
Murata NDL2412SC 2W, 24V input/12V out DC-DC converter (Digi-Key #811-1364-5-ND) (354 pieces)
Murata/C&D Technologies NDH2412SC 3W, 24V input, +/-12V out DC-DC converter (457 pieces)
Harris CD4098BE CMOS Dual Monostable Multivibrator (DIP16) (100 pieces)
TI SN74HC165 8-bit Parallel Load Shift Register (DIP16) (46 pieces)
TI SN74LS196 4-stage Presettable Ripple Counter (DIP14) (12 pieces)
LM723CN High-Precision Adjustable Voltage Regulator, 40V max. input, 2-37V output (DIP14) (20 pieces)
74LS00 Quad 2-input NAND gate (DIP14) (24 pieces)
National CD4017BCN Decade Counter/Divider w/ 10 decoded outputs (DIP16) (18 pieces)
Sockets, DIP14 (many)
Sockets, DIP16 (many)
Sockets, DIP24, flush to board (pins go into board, carrier gets removed) (156 pieces)
ALCO DRD10C Decade Rotary Switch (38 pieces)

SMD (Surface Mount) in tubes (quantities vary, but there are lots)
——————————————————————
Motorola MC68HC11F1FN (2 pieces)
Catalyst Semiconductor (now ON Semi) 24WC128 128Kbit Serial EEPROM (SOIC8) (2490 pieces)
NE555D Timer (SOIC8)
LM324D Single-supply quad op-amp (SOIC14)
LF398 Monolithic Sample and Hold Circuit (SOIC14)
NE5332 High-performance op-amp (SOIC8W)
OPA2604AU Op-amp 20MHz dual-FET (SOIC8)
MMPQ2907A Quad PNP transistor, 60V, 600mA (SOIC16)
74LVC4245AD Octal dual supply translating transceiver (SOIC24)
74HC00 Quad 2-input NAND gate (SOIC14)
74HC373D Octal tri-state latch (SOIC20)
74HC238D Decoder/Demux 3-8 (SOIC16)

SMD on reels
————

TI ULN2803A Darlington Driver (SOIC18W) (~1892 pieces)
Microchip 24LC16B 16K Serial EEPROM (SOIC8) (3300 pieces)
Panasonic EEF-CD0J470R 47uF, 6.3V speciality polymer aluminum electrolytic (Digikey #PCE3160TR-ND) (3500 pieces)
Panasonic EEF-CD0J470R 47uF, 6.3V speciality polymer aluminum electrolytic (Digikey #PCE3160TR-ND) (~1881 pieces, partial reel)
TI MAX3221CDBR 3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver (SSOP16) (Digikey #296-9593-2-ND) (2000 pieces)
TI MAX3221CDBR 3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver (SSOP16) (Digikey #296-9593-2-ND) (~625 pieces, partial reel)
Sumida CR43-8R2MC Power Inductor, 8.2uH, 0.84A (Digikey #308-1126-1-ND) (~1102 pieces)
Sumida CDRH4D28-181NC Power Inductor, 180uH, 0.22A (~222 pieces)
Fairchild 74ACT373MTCX Octal Transparent Latch w/ Tri-State (SSOP20) (~1248 pieces)
Microchip 93LC56T/SN 2Kb Microwire Serial EEPROM (SOIC8) (~1340 pieces)
National LM3480IM3X-3.3 Quasi Low-Dropout Linear Voltage Regulator, 3.3V, 100mA, SOT-23 (~1019 pieces)
National LM3480IM3-3.3 Quasi Low-Dropout Linear Voltage Regulator, 3.3V, 100mA, SOT-23 (~300 pieces)
Micro Commercial MBR0530 Schottky Rectifier 0.5A (~2451 pieces)

Fairchild MMBT3904 General Purpose Transistor, NPN, SOT23-3 (~2772 pieces)
Fairchild MMBT3904 General Purpose Transistor, NPN, SOT23-3 (~866 pieces)
Fairchild MMBT3906 General Purpose Transistor, PNP, SOT23-3 (~2129 pieces)
Zetex FMMT489TA NPN transistor, 30V, 1A, SOT23-3 (3000 pieces)
Zetex FMMT489TA NPN transistor, 30V, 1A, SOT23-3 (3000 pieces)
Zetex FMMT489TA NPN transistor, 30V, 1A, SOT23-3 (~1304 pieces, partial reel)

Murata CSTCW25M0X51-R0 25MHz resonator w/ built-in capacitors, 2.5mm x 2mm (~2029 pieces)
Murata CSTCV20.00MXJ040-TC20 20MHz ceramic resonator (~1997 pieces)
Adiva Technology 32MHz miniature resonator (ADSR-32.000MHZ) (2000 pieces)
Adiva Technology 32MHz miniature resonator (ADSR-32.000MHZ) (2000 pieces)
Transko Electronics 20.000MHz ceramic resonator (CR3731M-20.000MHZ) (1000 pieces)
Transko Electronics 20.000MHz ceramic resonator (CR3731M-20.000MHZ) (~993 pieces, partial reel)
Transko Electronics 20.000MHz ceramic resonator (CR3731M-20.000MHZ) (~510 pieces, partial reel)
Transko Electronics 20.000MHz ceramic resonator (CR3731M-20.000MHZ) (~74 pieces, partial reel)

Capacitor, 0.1uF, 50V, 0603, Transko TC06032R104K500BA (~3996 pieces)
Capacitor, Kemet C0603C104K4RAC7867, 0.1uF, 16V, X7R, 0603 (~3394 pieces)
Capacitor, Panasonic ECJ2VB1C104K, 0.1uF, 16V ceramic X7R, 10%, 0805 (Digikey #PCC1812TR-ND) (~3973 pieces)
Capacitor, Panasonic ECJ1VF0J225Z, 2.2uF, 6.3V, ceramic Y5V, 0603 (Digikey #PCC2181TR-ND) (~3840 pieces)
Capacitor, Panasonic ECJ1VF0J225Z, 2.2uF, 6.3V, ceramic Y5V, 0603 (Digikey #PCC2181TR-ND) (~2266 pieces)
Capacitor, Kemet C0603C470J5GAC7867, 47pF, 50V (~2376 pieces)
Capacitor, 15pF, 50V, 0603 (Digikey #PCC150ACVTR-ND) (~1008 pieces)
Capacitor, 4.7uF, 20V Tantalum (Digikey #PCS4475TR-ND) (~1500 pieces)

Resistor, 10 ohm, 0603 (Digikey #P10GTR-ND) (~3106 pieces)
Resistor, 100K, 0805, Vishay/Dale (~5000 pieces)
Resistor, 931K, 0603 (Digikey #311-931KHRTR-ND) (5000 pieces)
Resistor, 220K, 0603 (Digikey #311-220KGRTR-ND) (~4504 pieces)
Resistor, 604 ohm, 1%, 0603 (Digikey #P604HTR-ND) (~4077 pieces)
Resistor, 47 ohm, 0805, Yageo (5000 pieces)
Resistor, 47 ohm, 0603 (Digikey #P47GTR-ND) (~1650 pieces)
Resistor, 47 ohm, 0603 (Digikey #P47GTR-ND) (~125 pieces)
Resistor, 3.9K, 0805 (~392 pieces)
Resistor, 27 ohm, 0603 (Digikey #P27GTR-ND) (~1737 pieces)
Resistor, 330 ohm, 0402 (Digikey #P330JTR-ND) (~8148 pieces)
Resistor, 330 ohm, 0603 (~4699 pieces)
Resistor, 330 ohm, 0603 (~3019 pieces)
Resistor, 330 ohm, 0603 (~2721 pieces)
Resistor, 15.4K, 0603 (~4843 pieces)
Resistor, 2.2K, 0402 (~8040 pieces)
Resistor, 66.5K, 1%, 0603 (Digikey #311-66.5KHRTR-ND) (5000 pieces)
Resistor, 1.1K, 0603 (Digikey #P1.1KGTR-ND) (~3680 pieces)
Resistor, 1M ohm, 0402 (Digikey #P1.0MJTR-ND) (~500 pieces)
Resistor, 13K, 0603 (Digikey #311-13KGTR-ND) (~4485 pieces)
Resistor, 470K, 0603, Vishay (~4860 pieces)
Resistor, 470K, 0805 (Digikey #P470KATR-ND) (~4888 pieces)
Resistor, 240 ohm, 0603 (~3792 pieces)
Resistor, 42.2K, 0603, Yageo (5000 pieces)
Resistor, 1K, 0805, KOA (5000 pieces)
Resistor, 100K, 1%, 0805 (Digikey #P100KCTR-ND) (~5000 pieces)
Resistor, 4.7K, 0.5%, 0805 (Digikey #RR12P4.7KDTR-ND) (~4780 pieces)
Resistor Array, 240 ohm, 8 terminal/4 resistors (Digikey #MNR04241TR-ND) (~6544 pieces)

Inductor, 10nH, 400mA, 2%, SMD (Digikey #PCD1294TR-ND) (~2443 pieces)
Inductor, 10nH, 400mA, 2%, SMD (Digikey #PCD1294TR-ND) (~1127 pieces)

Other components
—————-

Green LED, T1 3/4 through hole, LDG5171 (~400 pieces)
Bourns/JW Miller 5800-103-RC 10mH high current choke (4 packs of 100 pieces each)
MAX1747 Triple Charge-Pump TFT LCD DC-DC Converter (a few pieces)
MAX1561 High-Efficiency, 26V Step-Up Converters for Two to Six White LEDs (a few pieces)
National LMH730216 Single High Speed Op Amp Evaluation Board
Light-to-frequency converters (or some other photodiode-related thing) (DIP8, manufacturer unknown) (5 pieces)
Acam TDC-GP2 Time-to-Digital converter mounted on QFN32-to-DIP32 prototype board

Misc. stuff/tools
—————–

Anti-static bags – various sizes & shapes
Magazine back issues: Nuts & Volts, Circuit Cellar, Elektor
GET LAMP: The Text Adventure Documentary (http://getlamp.com) w/ challenge coin #1693
“There Are No Electrons: Electronics for Earthlings” book, Kenn Amdahl
Assorted lengths of 1/4″ smooth aluminum rod
Diolan USB I2C/SPI Adapter (U2C-12)
Freescale MC33993D 22-channel I/O expansion w/ breakout board
Freescale MPXM2010GS pressure sensor w/ breakout board
BSODomizers (www.bsodomizer.com), portion of $ goes to Electronic Frontier Foundation

- EOF -

Steampunk Dorks November 19, 2009

Posted by sashahc in Uncategorized.
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There is a great exhibit at SFO (yes, the airport) of turn of the century slot machines. They are all brass and wood and levers and awesomeness. I imagine dorks 100 years ago getting together and presenting their clockwork projects. Here are some bad photos I managed to capture before finding out I wasn’t supposed to take photos.

Slot Machines at SFO

Slot Machines at SFO

More Slot Machines at SFO

More Slot Machines at SFO

Yet More Slot Machines at SFO

Yet More Slot Machines at SFO

Yet More Slot Machines at SFO

Yet More Slot Machines at SFO

Fully articulated robot hand simulation for open source CAD November 17, 2009

Posted by michaelshiloh in Uncategorized.
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The fine folks at Shadow Robot Company have made available a 3D CAD model of their dextrous robotic hand for Blender, a completely free open source 3D CAD and animation program, available for all three operating systems.

Shadow Robots seem to be people like us. They participated in the Kinetica Art Fair which had a very large crossover with the Dorkbot London community.

Jameco managers take a pay cut to avoid staff reductions October 19, 2009

Posted by michaelshiloh in how-to, Tech Review, Uncategorized.
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The latest Jameco catalog has a picture of a breadline during the Great Depression on the cover. Curious, I opened the front cover and read:

“…We at Jameco understand these times of economic uncertainty. When you struggle, we struggle. At a time of high unemployment, the Jameco management team has taken salary cuts to ensure the continued full employment of the trained professionals you have come to depend on for the past 35 years”…

If, like me, you are impressed by this, you might consider giving them as much business as possible.

pointless machine July 8, 2009

Posted by rrmutt in Uncategorized.
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Can’t find any more info on this, but it’s splendidly pointless:

Mock Up on Mu film at Red Vic July 6, 2009

Posted by rrmutt in Uncategorized.
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OK campers, this looks like one pretty trippy movie:

Mock Up On Mu: A radical hybrid of sci-fi, spy, Western, and even horror genres, Craig Baldwin’s Mock Up On Mu cobbles together a feature-length “collage-narrative” based on (mostly) true stories of California’s post-War sub-cultures of rocket pioneers, alternative religions, and Beat lifestyles.

Note this features Dorkbot regular Kal Spelletich, who not only stars in the movie, but will be demonstrating machine art at  the opening this Wednesday at the Red Vic.  Says Kal,

Before the 7PM and 9:20 screenings on Wednesday, in front of the theater, I will be conducting experiments with Harley Alchemy and jet propulsion!

Joe-Bob says check it out!

7 Years! June 18, 2009

Posted by k0re in Meeting Archive.
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Seven years ago dorkbotSF was born in a 2-car garage at Unicorn Precinct XIII. It was amazingly low-tech! We used a sheet for the screen in the midst of all the leftover surplus from New Hack City which a year later, also hosted a dorkbot!

About 30 people were in attendance mostly SRL, hackers, random friends, boingboing!! The flyer was black and white made by zsoul:

There was a bar with $1 beers and $2 tequila shots and the tamale lady!

The first dorkbotSF speakers were Nick Thompson talking about Grey Matter or modifying projection to match lighting and background colors, David Pescovitz talking about artists and media (applies to hackers too!), Al Deaderick aka ice cream cone/zsoul showing how to be a dj with soundedit 16 -lowtech and badass!, and Brian Normanly demonstrating the liberation and redistribution of electricity. Marc Powell who also presented at the 1st 7 year anniversary meeting on Food Genome MC’d and hosted this one!

The night ended with Dan Collard showing off Babalou’s British Death Fleet pickle light, a motorcycle club’s lamp powered by a pickle! Talk about low-tech green energy! Then Jon Sarriugarte who is hosting one of this month’s 7 year anniversary parties on June 20 ended the festivities with a mortar bang. Greg Leyh also in attendance then hosted the first 7 year anniversary party last June 3

More info on the first dorkbotSF meeting here. More easily navigable pix on flickr here!

Greg Leyh’s Lightning Lab Presentation for dorkbotSF 7 Year Anniversary Meeting June 12, 2009

Posted by k0re in Meeting Archive.
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For the 7th year of dorkbot SF, Greg Leyh hosts a meeting at his Lightning Lab which closes its doors in San Francisco at the end of the month (June) and moves to the East Bay.

He talks about the various research possibilities for the proposed lightning lab which will be built in Nevada. They are 2 12 story Tesla coils which can produce football-field sized arcs. There will be a visitor center. At the end of his presentation, Greg demonstrated some Tesla-roasting technique on some corn using an 11 ft Tesla coil. Videos of the Tesla Coil demonstration on the anniversary archive page here.

Video taken by dorkbot regular James Young. Q&A portions starts at about 20 minutes in. The demo followed.

more about "Greg Leyh’s Presentation for dorkbotS…", posted with vodpod

Other speakers that evening were Marc Powell on his Food Genome software and Jonathan Foote on his light printer Ghostmatrix.

How was school today? June 9, 2009

Posted by sashahc in Uncategorized.
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This is very complex use of assistive technologies that has the potential to go many places. Basically, it records data about what is going on around a kid and allows them to create a story about it. It is designed for kids with serious disabilities such as Cerebral Palsy that make communication hugely laborious.

This is a great synthesis of sensor data gathering and visualization, storytelling design, natural language studies, assistive technologies, and interface design for kids.

From their grant summary:

Our goal is to develop a computer tool which helps children who cannot speak create a story about their day at school. Story telling is an essential aspect of social interaction, and story-telling skills are developed through practice. It is difficult for non-speaking children to get such practice, our tool will help them.

More specifically, we want to use various kinds of sensors to acquire information about where the child went, what she did, and who she interacted with; write a computer program which automatically creates a draft story based on this data; and create a story editing and narration interface which lets children edit the draft story and then tell it when they are happy with it. Possible sensors include GPS for tracking where children go, RFID tags for tracking what objects children interact with and hence their activities; and barcode scanners for recording who children interact with. The story-generation software will be based on technology for generating English summaries of data which has been developed in other EPSRC-funded projects such as SumTime, RoadSafe, and BabyTalk. The story editing interface will probably be based on a visual timeline metaphor.

Courtesy of ACM courtesy of BBC News, here’s a bit from a recent article:

Dr Ehud Reiter, from the University of Aberdeen’s school of natural and computing sciences, said: “How was school today? uses sensors, swipe cards, and a recording device to gather information on what the child using the system has experienced at school that day.

“This can then be turned into a story by the computer – using what is called natural language generation – which the pupils can then share when they get home.

Conductive Textiles June 5, 2009

Posted by sashahc in Uncategorized.
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Thanks to Mike Kuniavsky for this link. BASF is previewing some electroconductive textiles in a couple of weeks.

From the press release:

“Once again, BASF is presenting ideas for innovative technical textiles at Techtextil 2009 (Hall 3.0, Stand B79) in Frankfurt/Main, Germany on June 16 – 18. In addition to a variety of textile coating solutions, the focus this year is on electroconductive textiles.”

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