Lup Yuen Lee 李立源 @lupyuen@social.cleverlibre.org

"Teaching D from Scratch: Is it a viable first language?"

https://dlang.org/blog/2021/12/23/teaching-d-from-scratch-is-it-a-viable-first-language/

"The Ultimate Budget Smartwatch - #PineTime Review"

https://youtu.be/DvEh60EnZxc

#NuttX OS doesn't handle the Join Response from #LoRaWAN Gateway ... Let's fix this

Run Log: https://gist.github.com/lupyuen/a8e834e7b4267345f01b6629fb7f5e33

#LoRaWAN Gateway receives the Join Request from #NuttX OS ... And accepts the Join Request! 🎉

Run Log: https://gist.github.com/lupyuen/a8e834e7b4267345f01b6629fb7f5e33

Let's connect Apache #NuttX OS to a #LoRaWAN Gateway ... RAKwireless WisGate D4H with ChirpStack

https://lupyuen.github.io/articles/wisgate

For #NuttX OS we hardcode the #LoRaWAN App Key ... Into the "Soft" Secure Element

https://github.com/lupyuen/LoRaMac-node-nuttx/blob/master/src/peripherals/soft-se/se-identity.h#L100-L115

#LoRaWAN gets its Device EUI, Join EUI and App Key from the Secure Element ... But since #NuttX doesn't have a Secure Element, we hardcode them in the "Soft" Secure Element

https://github.com/lupyuen/LoRaMac-node-nuttx/blob/master/src/peripherals/soft-se/se-identity.h#L65-L79

"List of places visited by Covid-19 positive Japanese national in Shanghai becomes viral food map"

https://mothership.sg/2021/12/shanghai-covid-japanese-list-authentic-food/

Best practices for writing Code Comments

https://stackoverflow.blog/2021/12/23/best-practices-for-writing-code-comments/

Advent of Code: Survey Results

https://jeroenheijmans.github.io/advent-of-code-surveys/

LoRa Frequency and Sync Word are OK ... Let's fix the Device EUI and Join EUI for #LoRaWAN on #NuttX OS

Run Log: https://gist.github.com/lupyuen/b91c1f88645eedb813cfffa2bdf7d7a0

#LoRaWAN on #NuttX OS sends a Join Request to the LoRaWAN Gateway ... But the values are incorrect though 🤔

Run Log: https://gist.github.com/lupyuen/b91c1f88645eedb813cfffa2bdf7d7a0

"Japanese lickable TV screen imitates food flavours, creating multisensory viewing experience"

https://youtu.be/buPZMgWG42A

#LoRaWAN builds OK on #NuttX OS! 🎉 ... Will it run? 🤔

https://github.com/lupyuen/incubator-nuttx/tree/lorawan

https://github.com/lupyuen/incubator-nuttx-apps/tree/lorawan

#LoRaWAN on #NuttX OS: Let's stub out the functions for Non-Volatile Memory and Real Time Clock ... And watch what happens 🌋

https://github.com/lupyuen/LoRaMac-node-nuttx/blob/master/src/nuttx.c

Google cancels CES in-person presence, event organizers going ahead with show

https://techcrunch.com/2021/12/23/google-cancels-ces-show-presence-amid-omicron-concerns/

"Did Fentanyl Overdose Become Top Cause of Death for Adults Aged 18-45 in the US?"

https://www.snopes.com/fact-check/fentanyl-overdose-death/

"Singapore's festive indulgence creates enormous Food Waste"

https://www.channelnewsasia.com/commentary/food-waste-christmas-festive-indulgence-2397511