Lup Yuen Lee 李立源 @lupyuen@qoto.org

#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

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

#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

Fixing the missing references for #LoRaWAN on Apache #NuttX OS

https://docs.google.com/spreadsheets/d/12EFS72JFjjuK-2yWQVYrImkUjyEA_iGlnsEu1d42r68/edit#gid=0

Dizzy 😵‍💫

https://en.m.wikipedia.org/wiki/Caldecott_MRT_station

#LoRaWAN needs Real Time Clock and Non-Volatile Memory ... Now porting to Apache #NuttX OS 🤔

https://github.com/lupyuen/LoRaMac-node-nuttx

What's next for Apache #NuttX OS ... LoRaWAN!

https://lupyuen.github.io/articles/sx1262?29#whats-next

#LoRaWAN on Apache #NuttX OS ... Porting in progress 👍

https://github.com/lupyuen/LoRaMac-node-nuttx

Semtech's Reference Driver for #LoRa SX1262 ... Everything inside is explained here

https://lupyuen.github.io/articles/sx1262?27#appendix-radio-functions

Porting #LoRaWAN to Apache #NuttX OS ... Might have interesting challenges 🤔

https://lupyuen.github.io/articles/sx1262?28#notes

Multithreading will be needed for our #NuttX #LoRa and LoRaWAN Drivers ... Which we'll implement with NimBLE Porting Layer

https://lupyuen.github.io/articles/sx1262?26#multithreading-with-nimble-porting-layer

Our #NuttX SX1262 Library shall handle GPIO Interrupts someday

https://lupyuen.github.io/articles/sx1262?25#gpio-interface

Here's the SPI Data transferred by #NuttX to #LoRa SX1262

https://lupyuen.github.io/articles/sx1262?24#spi-in-action

Our #NuttX SX1262 Library transfers SPI Data by calling the SPI Test Driver

https://lupyuen.github.io/articles/sx1262?23#transfer-spi

How our #NuttX SX1262 Library inits the SPI Bus

https://lupyuen.github.io/articles/sx1262?22#initialise-spi