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997 Results for "《 예약문의 OIO≡⑧④89≡83O⑥》선릉레깅스룸㉹ベgrace레깅스룸Ｓ선릉레깅스룸선릉레깅스е я레깅스룸비용superstition 강남레깅스룸′강남레깅스§８fetch"

  • PIC[32]sy
  • Log     from operation: Learn The MIPS (PIC32MX1xx/2xx/370)
  • Update: Adding before-and-after images of it in-circuit.The problem is, there's quite a bit of bare-minimum support-circuitry with the PIC32 (and probably most newer high-speed microcontrollers), including several capacitors, some resistors for the reset...

  • Well thats been a time....
  • Log     from reiREXcarnation
  • After some tinkering with the mechanics of a flexible testpin holder i put the idea aside and got back tothe device itself. The power and battery management are the first candidates id like to look at more closely.I dumped the idea of the arduino as...

  • External diagnostic port
  • Log     from GPS Disciplined xCXO
  • It's become clear that I need to figure out some way to get to the diagnostic header while the board is in its chassis. I've also decided that the battery backup clip for the GPS module is worthless. It takes the OCXO long enough to come up to temperature...

  • FE-5680A ?
  • Log     from GPS Disciplined xCXO
  • I decided to sit down and design a GPS discipline add-on board for the FE-5680A rubidium frequency standard.The FE-5680A is widely available on eBay and it's Allan Deviation starts at, or perhaps slightly higher than the OH300 (see this page for one...

  • Buck converter fail
  • Log     from GPS Disciplined xCXO
  • Well, I got the boards back with the new buck converter design, and it's a truly epic fail.The 5v regulator is fine, but it's a tried and true design. The problematic part is the 15V buck regulator. At 1A of draw, it has a good 300 mV p-p of ripple,...

  • Serial I/O kicking my ass
  • Log     from GPS Disciplined xCXO
  • I've wasted 4 revisions of boards trying to get the serial I/O interface to the oscillator right.I wanted to add the option of changing the oscillator interface to use TTL level instead of RS-232 level, since that (in combination with allowing the oscillator...

  • Using v1.6.1 with other oscillators
  • Log     from GPS Disciplined xCXO
  • V1.6.1 has the ability to be configured for oscillators other than the FE-5680A. In particular, you can configure the oscillator output to be either on pin 7 of the DB9 or on a U.FL footprint adjacent to the DB9 connector. You can also configure pins...

  • Another improvement idea
  • Log     from GPS Disciplined xCXO
  • There are a couple of birds I'd like to kill with one stone.Up to now, the TX pin from the controller has been connected to the GPS module's RX line. This was originally done to facilitate having the controller send commands to the GPS receiver, but...

  • SkyTraq GPS module firmware issue
  • Log     from GPS Disciplined xCXO
  • Word has come to me via the TimeNuts mailing list that certain models of SkyTraq GPS receiver may have firmware issues that prevent them from getting a fix due to recent changes in the GPS almanac. This same note said that modules in survey-and-position-hold...

  • Look at all those 5V tolerant pins!
  • Log     from 2.5-3D thing
  • I started out with the PIC32MX230F064B, for some reason... I also have the PIC32MX170F256B... I figured I'd continue with the one I started-with, but already ran into some (minor) difficulty: my USB->Serial converter uses 3.6V-TTL, whereas the PIC32...

  • Vids! Ball-Mice! Crazy Motor Drivers!
  • Log     from 2.5-3D thing
  • Here's the video submitted for the 2015 quarterfinals, I decided to use it for #commonCode (not exclusively for AVRs)... (see the previous post, regarding how these projects all kinda feed into each other). I decided to use a strange motor-driver for...
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