Lup Yuen Lee 李立源 @lupyuen@qoto.org

"#PinePhone Pro preorder?"

https://www.reddit.com/r/PINE64official/comments/ro797l/pinephone_pro_for_newcomers/?utm_medium=android_app&utm_source=share

#BL702 Dev Board with Zigbee

https://m.aliexpress.com/item/1005003695882418.html

To build NumBLE Porting Layer on #NuttX OS we need to enable: 1️⃣ POSIX Timers & Message Queues 2️⃣ Clock Monotonic 3️⃣ Work Queues 4️⃣ SIGEV_THHREAD

https://github.com/lupyuen/nimble-porting-nuttx

NimBLE Porting Layer is a portable library of Multithreading Functions ... We've used it for #LoRa on Linux and FreeRTOS ... Now we call it from Apache #NuttX OS

https://github.com/lupyuen/nimble-porting-nuttx

"Steam Has Reportedly Been Banned In China"

https://www.thegamer.com/steam-banned-china-christmas-day/

Our #NuttX App was waiting for the #LoRaWAN Join Request to be transmitted before receiving the Join Response ... But because we're polling SX1262, we missed the Join Response ... Let's fix this with the multithreading functions from NimBLE Porting Layer

Log: https://gist.github.com/lupyuen/d3d9db37a40d7560fc211408db04a81b

"up to 25 percent of new (Amazon) Alexa owners no longer actively using their devices after only two weeks of ownership"

https://mashable.com/article/amazon-alexa-usage-drop

"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/