Lup Yuen Lee 李立源 @lupyuen@qoto.org

We flash #NuttX Firmware to #BL602 ... With the excellent "blflash" by spacemeowx2

https://github.com/spacemeowx2/blflash

#NuttX #BL602 builds easily on WSL Ubuntu ... Uses plain "make" with "kconfig"

https://nuttx.apache.org/docs/latest/platforms/risc-v/bl602/index.html

#NuttX OS works on Arm, #RISCV and ESP32

https://nuttx.apache.org/docs/latest/platforms/index.html

Apache #NuttX OS is super interesting because 1️⃣ It runs on all kinds of MCUs 2️⃣ Its APIs work like POSIX (Linux-lite)

https://nuttx.apache.org/docs/latest/introduction/about.html

Let's run Apache #NuttX OS on RISC-V #BL602

https://nuttx.apache.org/docs/latest/platforms/risc-v/bl602/index.html

"#WSL: Data Is Invalid" on Windows 10 Insider Preview 🙄

https://github.com/microsoft/WSL/issues/6509

Good old days 🥲

TIL: #BL602's PWM can run below 2 kHz ... Just set the PWM Clock Divider. Many thanks to Chandler! 👍

https://lupyuen.github.io/articles/led#initialise-pwm

No plans to migrate to Bouffalo Lab's Revamped #BL602 IoT SDK and "hosal" HAL ... Because we would need to rewrite "The RISC-V BL602 Book" ... All 37 articles 🤔

https://lupyuen.github.io/articles/lorawan2#notes

I hope @PINE64 will release the #PineDio Family of #LoRa Gadgets real soon! 👍

https://lupyuen.github.io/articles/gateway?17#whats-next

#LoRa Gateways can run locally, without the Cloud ... Just install ChirpStack

#LoRa Antennas are typically "λ / 2" or "λ / 4" long

https://lupyuen.github.io/articles/gateway?16#compare-antennas

#PineDio LoRa Gateway and #RAKwireless RAK7248 use different antennas though

https://lupyuen.github.io/articles/gateway?15#compare-antennas

Benchmarking #PineDio #LoRa Gateway @PINE64 ... With RAKwireless RAK7248 Gateway

https://lupyuen.github.io/articles/gateway?12#benchmark-with-rakwireless-wisgate

#BL602 MCU SDK supporting Zephyr OS soon 🎉

https://github.com/bouffalolab/bl_mcu_sdk/pull/18

Yep multiple #LoRa Gateways can receive the same message in #TheThingsNetwork! 👍

https://lupyuen.github.io/articles/gateway?11#test-with-pinedio-stack

λ / 2 vs λ / 4 ... Yep Antenna Length matters when receiving #LoRa packets

Testing #PineDio #LoRa Gateway ... With PineDio Stack BL604 @PINE64

https://lupyuen.github.io/articles/gateway?10#test-with-pinedio-stack

No idea what to do with the flowers 🤔

Our #PineDio Gateway is connected to #TheThingsNetwork! 🎉

https://lupyuen.github.io/articles/gateway?9#gateway-is-up