Lup Yuen Lee 李立源 @lupyuen@qoto.org

#LoRa Sensor "measures Heart Rate and Body Temperature using a form-fitting, lattice-like mesh of thermoplastic polyurethane"

https://spectrum.ieee.org/wearable-medical-devices-lora

Emulate #Ox64 BL808 #RISCV SBC in the Web Browser ... Making good progress! 👍

Source: https://github.com/lupyuen/nuttx-tinyemu#emulate-ox64-bl808-in-web-browser

Enabling #RISCV Interrupts in the Platform-Level Interrupt Controller (PLIC)

Article: https://lupyuen.codeberg.page/articles/plic2.html#enable-the-interrupt

"These are difficult, long-term projects that could be valuable to Open Source Investigators at Bellingcat and around the world" (Electrical network frequency analysis)

https://github.com/bellingcat/open-questions

"#DLang Leadership does not endorse the Fork, but we also do not bemoan the people who are involved"

https://forum.dlang.org/thread/vwnefgsszqxobssylhmc@forum.dlang.org

Walking through the #RISCV Level 1, 2 and 3 MMU Page Tables ... On #Ox64 BL808 with Apache #NuttX RTOS 🤔

Source: https://gist.github.com/lupyuen/def8fb96245643c046e5f3ad6c4e3ed0#dump-the-level-1-page-tables

Migrating from Substack to self-hosted Ghost

https://citationneeded.news/substack-to-self-hosted-ghost/

Object File formats (ELF / COFF)

https://maskray.me/blog/2024-01-14-exploring-object-file-formats

hardware_hustle: Tabletop Game about running a small Hardware Business

Source: https://github.com/oskitone/hardware_hustle

Open-source #Arduino Simulator that runs in your web browser

https://www.cnx-software.com/2024/01/16/arduinosimulator-is-an-open-source-arduino-simulator-that-runs-on-your-web-browser/

#RISCV Lichee Console 4A benchmarks

https://3.14.by/en/read/RISC-V-Sipeed-Lichee-Console-4A-Alibaba-T-Head-TH1520-review

We emulate the #Ox64 BL808 UART Registers in TinyEMU #RISCV Emulator ... Now we see Virtual Ox64 booting Apache #NuttX RTOS! 🎉

Source: https://github.com/lupyuen/nuttx-tinyemu#intercept-uart-registers-for-ox64-bl808-emulator

How we set the #RISCV Interrupt Priority and Threshold for Platform-Level Interrupt Controller (PLIC)

Article: https://lupyuen.codeberg.page/articles/plic2.html#set-the-interrupt-priority

Bread Machine #Sourdough ... Stretch & Fold really helps! 👍

Recipe: https://lupyuen.codeberg.page/articles/sourdough.html

Story of Motorola 6800 and the creation of 6502

https://thechipletter.substack.com/p/leaving-arizona

Strange MMU Crash on #Ox64 BL808 with Apache #NuttX RTOS 🤔

Source: https://gist.github.com/lupyuen/def8fb96245643c046e5f3ad6c4e3ed0

rvscript: Game Scripting Engine with low latency #RISCV Sandbox

https://github.com/fwsGonzo/rvscript

Delayed Open Source Publication (DOSP): "distributing or publicly deploying software under a Proprietary License at first, then subsequently ... publishing that software’s source code under an Open Source license" (Terraform / Qt / GhostScript)

https://opensource.org/delayed-open-source-publication/

"Niklaus Wirth, or the Importance of Being Simple" (Bertrand Meyer)

https://m-cacm.acm.org/blogs/blog-cacm/279178-niklaus-wirth-or-the-importance-of-being-simple/fulltext