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david.parrott : hardware   230

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Building a ‘Homebrew’ Video Game Console | Internal Register
Software and hardware projects for fun from a guy who loves retro computing
assembly  computers  diy  hardware  homebrew  console  retro  game 
10 days ago by david.parrott
AxiDraw V3
Evil Mad Scientist Shop: DIY and open source hardware and software for art, education, and world domination.
art  code  hardware 
january 2018 by david.parrott
Why Raspberry Pi isn't vulnerable to Spectre or Meltdown - Raspberry Pi
Eben gives you a crash course in how modern processors work to explain why Raspberry Pi is unaffected by the Spectre and Meltdown security vulnerabilities.
cpu  programming  security  hardware  raspberrypi  spectre  meltdown 
january 2018 by david.parrott
Get eyes in the sky with your Raspberry Pi
Learn how to use your Raspberry Pi and a cheap USB TV tuner stick to start tracking flights overhead - up to 250 miles away from your location.
diy  electronics  hardware  raspberrypi  radio  sdr  rtlsdr 
july 2017 by david.parrott
Disk Prices (UK)
Comparison of all hard drives on Amazon, sorted by price per GB
hardware  disk 
july 2017 by david.parrott
Pushing Polygons on the Mega Drive
This is a write-up of the polygon renderer used for the Mega Drive demo “Overdrive 2” by Titan, released at the Revision 2017 Demoparty.
As the Mega Drive can only display tilemaps, not bitmaps, and does not have the video memory mapped into the CPU address space, this turned out to be an interesting problem.
If you have not seen the demo yet, I recommend watching it before continuing.
You can find a hardware capture on YouTube:
demoscene  graphics  hardware  sega  megadrive 
may 2017 by david.parrott
RTL-SDR Tutorial: Cheap ADS-B Aircraft RADAR -
The rtl-sdr can be used as a real time air radar. Modern planes use something called an ADS-B (Automatic Dependent Surveillance-Broadcast) transponder, which periodically broadcasts location and altitude information to air traffic controllers
ads-b  hardware  radio  sdr  software  rtlsdr 
april 2017 by david.parrott
Receiving IR signals with RTL-SDR dongles – R. X. Seger – Medium
RTL-SDR dongles like the NooElec NESDR Mini 2+ often come with an infrared remote control, intended to control TV player software when the device is used in DVB-T mode. But when used as an SDR, what…
infrared  hardware  sdr 
april 2017 by david.parrott
Worksheet - Morse Code Virtual Radio | Raspberry Pi Learning Resources
The worksheet for the Morse Code Virtual Radio Learning Resource for Raspberry Pi
raspberrypi  projects  electronics  tutorial  hardware 
march 2017 by david.parrott
Worksheet - Fart Detector | Raspberry Pi Learning Resources
The worksheet for the Fart Detector Learning Resource for Raspberry Pi
raspberrypi  projects  electronics  tutorial  hardware 
march 2017 by david.parrott
International Space Station Orbit Tracker and Pointer — Practical Engineering
There’s a growing movement of people who believe that our space agencies
are underfunded and that humanity isn’t paying enough attention to our
present accomplishments and future plans in space exploration. Well, I know
one way to direct attention to something: Point at it.
satellite  electronics  hardware  space 
march 2017 by david.parrott
Designing Analog Chips by Hans Camenzind
Designing Analog Chips by Hans Camenzind available for free download.
electronics  signalprocessing  dsp  hardware  book 
february 2017 by david.parrott
NOAA Satellite Signals with a PVC QFH Antenna and Laptop - All
This instructable covers everything you'll need to get started in being able to receive the APT (Automatic Picture Transmission) signals from the NOAA Satellites (NOAA-15, 18, and 19) flying overhead (and can be a foundation for listening to other satellites as well). It all starts with a simple SDR (Software Defined Radio) which is a radio where the traditional and complicated parts, the modulators and amplifiers, are now done by computer software rather than the hardware. So a smal...
satellite  sdr  antenna  hardware 
february 2017 by david.parrott
PHQFH Diy Guide
This site is for all those interested in monitoring the weather satellites it includes a ilustrated step by step Guide to making your own QFH, International WXsat imaging competition, links to decoding and tracking software such as, wxtoim, WXsat, Satsignal, WXrack, U.K Lotto results and much more.
radio  satellite  antenna  diy  sdr  hardware 
february 2017 by david.parrott
M&Ms and Skittles sorting machine -
circular LED strip is glued to the middle plate of the machine. It has exactly 32 RGB leds. It will be used to show rainbow patterns when the machine is stand-by, and it will display measured colour during the sor
hacking  hardware 
february 2017 by david.parrott
Open Hardware Monitor - Core temp, fan speed and voltages in a free software gadget
The Open Hardware Monitor is a free open source software that monitors temperature sensors, fan speeds, voltages, load and clock speeds of a computer.
cpu  hardware  software  opensource  tool  windows 
september 2016 by david.parrott
BBC micro:bit : home
Welcome to BBC micro:bit! This website will be your hub for all things micro:bit, from writing code to sharing your creations.
bbc  hardware  electronics  code  education  microbit  programming  development 
june 2016 by david.parrott
Zusie - My Relay Computer
I amuse myself by constructing a computer almost entirely out of relays. Relays were used to construct computers well before vacuum tubes, transistors or integrated circuits were feasible for the task.
computers  cpu  hardware  electronics  homebrew 
october 2012 by david.parrott
The Elements of Computing Systems / Nisan & Schocken
This site supports a course and a textbook that guide students and self-learners through the construction of a modern, full-scale computer system - hardware and software - from the ground up.
hardware  tutorial  book 
october 2012 by david.parrott
How to write an emulator (CHIP-8 interpreter) |
This guide is intended to give a brief introduction to the world of emulation and will also teach you how to write one yourself from scratch. Personally I
chip8  emulation  emulator  development  programming  tutorial  retro  hardware  cpu 
june 2012 by david.parrott
LensKey - Lenslok Emulator
LensKey is a Lenslok™ decoder for Windows 95 or later. It emulates the function of the plastic lens, unscrambling an on-screen pattern to reveal a 2 character security code.
hardware  tool  retro  emulation  emulator 
may 2012 by david.parrott
Stack Computers: the new wave -- an on-line book
Published in 1989, this was the first book to explore the new breed of stack computers led by the introduction of the Novix NC4016 chip. The author commences with an overview of how stacks are used in computing, and a taxonomy of hardware stack support which includes a survey of approximately 70 stack machines past and present. Detailed descriptions, including block diagrams and instruction set summaries, are given for seven new stack processors from Harris Semiconductor, Novix, Johns Hopkins University/APL, MISC, WISC Technologies, and Wright State University. Major topics covered also include architectural analysis of stack machines, software issues, application areas, and potential for future development.
book  hardware  programming  development 
january 2012 by david.parrott :: Nintendo 64 :: SNES :: Sega
I aim to provide a reliable and competitively priced UK based source for both common and hard to find game console goods. Specialising in retro video game hardware, particularly SNES, Megadrive, Dreamcast and Saturn. Also unusual imported items like backup devices and unlicensed games.
game  games  gaming  hardware  retro 
august 2011 by david.parrott
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