Type | lecture |
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Language | English |
12/27/18 |
When a electrical device needs to be a piece of art or used as a mechanical component, a printed circuit board is more than a piece of fiberglass with wires embedded in it. In chemical engineering applications internal holes which allow fluids to be transported through the PCB need to be placed in complex precise patterns. As art, holes can be used to create positive and negative space, allowing you to see a charlieplexed LED display as a snowflake. Creating complex shapes in PCB design software ...
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12/27/18 |
<a href="https://www.sigfox.com/">Sigfox</a> is an emerging low-power wide-area network (LP-WAN) technology for IoT devices, comparable to <a href="https://lora-alliance.org/">LoRa</a>. This talk recounts my analysis of Sigfox's radio protocol and presents an open reference implementation of an alternative Sigfox protocol stack. It confirms that while Sigfox ensures authenticity and integrity, transmitted payloads are not confidential. This presentation is targeted at a technical audience with ...
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12/27/18 |
Encoding or decoding random radio-waveforms doesn't need incredible expensive hardware anymore which offers new possibilities for building up over-the-air communication systems. There are Software Defined Radios providing affordable cellular radio to remote villages, Community Radios are using SDR to build up digital radio networks and other cool stuff. Some basic knowledge what is going on in SDR Hard/Software as the influence of the samplerate, I/Q-data of the math behind the waterfall-diagram ...
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12/27/18 |
Open Source firmware ist ein Begriff seit 1999 wo LinuxBIOS (coreboot) und u-boot als Projekt starteten. Heute nach fast 20 Jahren ist endlich Open Source firmware bei den Herstellern von Hardware angekommen: Google Chromebooks - coreboot Facebook Open Compute Hardware - coreboot / LinuxBoot Purism Laptops - coreboot Microsoft Olympus - TianoCore Microsoft Surface - TianoCore IBM Power 9 - Hostboot / Skiboot ARM Hardware - ARM Trusted Firmware Intel Minnowboard - TianoCore, coreboot A lot ...
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12/28/18 |
The <a href="http://symbiflow.github.io">SymbiFlow project</a> aims to be the "GCC of FPGAs" - a fully open source toolchain supporting, multiple FPGAs from different vendors. Allowing compilation from Verilog to bitstream without touching vendor provided tools, it includes support for large modern FPGAs like the Lattice ECP5 and Xilinx 7 series. These FPGAs can be used for things previously out of reach of FOSS tools, things like high resolution video and many gigabit networking. We have also ...
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12/28/18 |
Project IceStorm provides the first end-to-end open source FPGA toolchain, was originally presented at 32c3, and only targetted Lattice iCE40 FPGAs. nextpnr is the next big step for open source FPGA tools, providing a retargetable open source FPGA place-and-route tool that will enable open source flows for many different FPGAs from many different vendors.
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12/28/18 |
Teaching beginners how to program is often <i>hard</i>. We love building programs, and seeing our loved ones struggle with this is painful. Showing them how to copy-paste a few example programs and change a few parameters is easy, but bridging from there to building substantial programs is a different game entirely. This talk is about how to teach programming successfully, through comprehensible <i>design recipes</i>, which anyone can follow, using languages and tools designed for beginners. ...
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