19513 Results for "『 모든문의 OIO=5793=7458 』 선릉셔츠룸㈄『 모든문의 OIO=5793=7458 』 Ηcake²셔츠룸테란강남셔츠룸デwriter 셔츠룸테란강남셔츠룸 선릉셔츠룸⒁셔츠룸사이즈┲exhausted⅔"

PN532 Reader
Log from "Chad" - The NFC Voting System
Project deadline is 17 days away.→InsertImageThe ElecFreaks PN532 based NFC reader arrived today. Had I realized that all their software samples are derived from the Adafruit board I would have ordered that one to support the open source effort (sorry...

Let's build this thing
Log from "Chad" - The NFC Voting System
Mechanical assembly always takes longer than I think it will. I figured one evening would be all it takes to build this thing, but by the time I figured out the size of the acrylic, cut a wood base for it, tested the layout of the components, then drilled...

Soldering Complete
Log from "Chad" - The NFC Voting System
→InsertImageSo here's the deal. One of my prejudices against Arduino is that it's an expensive board to leave with a project. But this is kind of a one-time thing so I was happy to find the Seeed Studio protoype shield for like $7.95 at the local Radio...

Gathering Components
Log from EV Commuter Longboard
First, you're going to need a deck. If you're working on a budget, go to Walmart or Academy Sporting Goods or similar and pick up something cheap for around $20. The above deck is a bustin mini maestro, which I think I got for $80-90. The primary difference...

LayerOne 2014 Conference Badge
Log from LayerOne 2014 Conference Badge
rev3 board, rerouted and moved components around to try to be closer to final design and clean up noise, split ground planes.Changed SPI's to use the hardware SPIs of the Cortex, they were all Software SPI before, adding all the names to the pins on...

power....
Log from LayerOne 2014 Conference Badge
Arko started putting the rev3 board together last night, we usually build the power section first and measure how it looks, make sure none of the power is shorted in the PCB ( it happens). This board has one always on regulator, its a 3.3V LDO that...

Oh yeah I forgot.
Log from LayerOne 2014 Conference Badge
Not only does this badge have an FPGA, but there is also a breakout and chip pads for a BitFury BTC ASIC

anticipation, neoden, parts ordering, BOM.
Log from LayerOne 2014 Conference Badge
we're still waiting on a tracking number for the PCB's, the conference is in just over a week! and i can't finish the code til we get the first one made... oddly enough this hasn't been the closest we've cut it, but its getting there.since there...

fedex and wildfires
Log from LayerOne 2014 Conference Badge
It's wildfire season, but Fedex managed to get our boards from Malaysia to us in good time, unfortunately there was a cock up in the ordering department and they shipped to the billing address, we'd left there about 15 minutes before they showed up with...

Badge PCB's Arrived
Log from LayerOne 2014 Conference Badge
After delays, e-test errors, shipping problems, wild fires and 6 revisions. These completely untested hopefully 4 layer PCBs have arrived. I'm probably just being paranoid but they sure look like 2 layer.Also Arrow decided that I didn't want overnight...

Finally all the PCB's in one place
Log from LayerOne 2014 Conference Badge
left side, LF antenna, middle HF antenna, right badge board, top combined HF/LF antenna.The late nights/early mornings have started. The HF antenna is marginal right now so we just need to get the right caps/inductors added, but it did read. The LF of...

Post LayerOne
Log from LayerOne 2014 Conference Badge
Well layerone has been and gone, and apparently it was great, i don't know since i was in the back room getting a couple of hours sleep coding, while the others around me soldered boards together. I'm usually one to write up logs as they happen or just...

Prototypes ahoy
Log from Analog CPU Gauge
With motors in hand, I built up a quick prototype. The X27 motors are designed to only move a small pointer. They draw so little current (under 20ma at 5v) that they can be driven by PIC and AVR micro pins directly. Soldering wires to the thin pins of...

Putting a Face on a Gauge
Log from Analog CPU Gauge
With the PCB and parts finally back, and working pointers printed in safety orange, I started assembling. About 10 minutes of soldering later, the finished board looked greatNow I needed a face for my gauge. I broke out word for windows (I know,...

Preliminary BOM and rough costing
Log from Arduino-Compatible FPGA Shield
Did a preliminary BOM today and selected a few key components, incl. the Spartan 6 variant I'd like to use and the SDRAM and Flash devices (may go with a BGA SP6 package with more IO...no risk yet to the design, regardless of what I choose). All...

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