ALTAIR 8800 AGAIN PROJECT

[Dirk] posted a video (you can see below) titled, “Mystery Retro Project Start.” That turned out to be the first of a multipart series on his Altair 8800 Again simulator. The front panel appears to be laser cut and in some future video episodes, we expect to see him simulate the CPU with a Teensy. There have been plenty of 8800 clones ranging from projects that recreate the original PCBs, to those that just ...

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MicroZed is a Powerful and Low-Cost ARM + FPGA Linux Development Board

MicroZed is a low-cost development board from Avnet, the makers of the $475 ZedBoard and the entry level MiniZed development boards. Its unique design allows it to be used as both a stand-alone evaluation board for basic SoC experimentation or combined with a carrier card as an embeddable system-on-module (SOM). The MicroZed processing system is based on the Xilinx Zynq®-7000 All Programmable SoC. The Zynq® ...

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COLLAPSE OS, AN OS FOR WHEN THE UNTHINKABLE HAPPENS

Decades of post-apocalyptic Hollywood movies have taught us that once all the trappings of our civilisation have been stripped away, it’s going to be kinda cool. We’re all going to wear slightly dusty looking 1980s motorcycling gear, and we’re going to drive really cool cars. Except of course Mad Max is fantasy, and the reality is likely to be unspeakbly grim. The future [Virgil Dupras] ...

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LED MUSIC VISUALIZER BESPECKLES YOUR BEDROOM

When it comes to wall-mounted ornamentation, get ready to throw out your throw-rugs and swap them for something that will pop so vividly, you’ll want to get your eyes checked. To get our eyes warmed up and popping, [James Best] has concocted a gargantuan 900-RGB-LED music visualizer to ensure that our bedrooms are bright and blinky on demand. Like any other graduate from that small liberal-arts sc ...

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Helios4 – The World’s 1st Open Source NAS

Helios your Own Private Cloud Helios4 is a Network Attached Storage or NAS - a smart box with up to 4 hard drives designed to store Family Photos, Music playlists, and Movie collections by connecting to your Home network. Program movie download & Get Fast access to Videos, Pictures & Music from any device. Share your photos & files and let friends and family access them anywhere, anytime... Prot ...

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PAC1934 – Microchip’s New Power-Monitoring IC Measures Power With 99% Accuracy

Microchip recently developed a precision power-and-energy-monitoring chip – PAC1934. The PAC1934 is a four channel power/energy monitor with current sensor amplifier and bus voltage monitors that feed high-resolution ADC. It works in conjunction with a Microchip software driver that is fully compatible with the Energy Estimation Engine (E3) built into the Windows 10 operating system. The whole setup provide ...

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FPGA eink controller

Description I started this project two years ago but lost interest last year after being stuck with the custom board. I since got it working, and will share my findings. The idea is to control an old broken kindle 3 eink display with a FPGA. I started looking at http://essentialscrap.com/eink/waveforms.html and http://spritesmods.com/?art=einkdisplay since eink constructor is so secretive that you can't fin ...

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Analyzing the vintage 8008 processor from die photos

The revolutionary Intel 8008 microprocessor is 45 years old today (March 13, 2017), so I figured it's time for a blog post on reverse-engineering its internal circuits. One of the interesting things about old computers is how they implemented things in unexpected ways, and the 8008 is no exception. Compared to modern architectures, one unusual feature of the 8008 is it had an on-chip stack for subroutine ca ...

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ADD A HOST OF 8-BIT PROCESSORS TO YOUR ARDUINO

Normally when we bring you news of a retrocomputing design, it will centre around a single processor. At its heart will be a 6502, a Z80, or perhaps a 6809. There will be a host of support chips, some memory as RAM or ROM, and a bunch of interfaces. [Erturk Kocalar]’s RetroShield project for the Arduino Mega breaks all of those rules, because it supports all three of those classic processors, has no support ...

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FLIR Boson Camera Frame Grabber using FPGA

Description A small PCB designed to attach to the backside of the FLIR Boson Thermal Camera. The PCB facilitates configuration of the camera along with capturing data to an SD card. This project is mostly an exercise in project-based learning. Instead of researching and reading about FPGAs, I want to create a project actually using them. Of course, this means that I'll likely get things wrong, but that's ju ...

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NXP’s MMA8451QR1 Accelerometer

Process computer designs usually start out with an accelerometer. As reliability problems creep in, making the switch to a more “professional” solution is beneficial. Accelerometers are based on the MEMS principle: instead of being a purely solid-state affair, the inside of the chip contains a micromechanical motion sensor along with a small mass. In addition to that, a set of transducer circuits are provid ...

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HiFive1, An Open-Source RISC-V Development Kit

By bringing the power of open-source and agile hardware design to the semiconductor industry, SiFive aims to increase the performance and efficiency of customized silicon chips with lower cost. The Freedom E310 (FE310) is the first member of the Freedom Everywhere SoCs family, a series of customizable microcontroller SoC platforms, designed based on SiFive’s E31 CPU Coreplex CPU for microcontroller, embedde ...

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