Lup Yuen Lee 李立源 @lupyuen@qoto.org

We also patched #ESP32-C3 #NuttX so that it works with all LCD Drivers that use Data / Command Pins 👍

https://github.com/apache/incubator-nuttx/pull/5908

Debugging #RISCV #BL702

https://simplycreate.online/bl702/2022/03/17/debug-bl702.html

Our flipping of ST7789 Data / Command Pin has been merged into #BL602 #NuttX 👍

https://github.com/apache/incubator-nuttx/pull/5898

@hans Ah but what kind of permissions would we need for an embedded OS? Are we preventing someone from using the ST7789 display? Or stopping someone from controlling the ST7789 display over the network?

@hans Well we don't have enough CPU and RAM to handle permissions on microcontrollers. There's locking to prevent concurrent access to microcontroller resources (like the SPI bus)

Hackaday Challenge: "minimizing the costs around building and installing clean energy solutions"

https://prize.supplyframe.com/?mc_cid=4ce85dc2f1&mc_eid=fad9e1345f

Blockchain project Ronin hit by $615 million crypto heist

https://www.channelnewsasia.com/business/blockchain-project-ronin-hit-615-million-crypto-heist-2594381

"The weird world of non-C Operating Systems"

https://www.theregister.com/2022/03/29/non_c_operating_systems/

@hans NuttX is an embedded operating system for microcontrollers, so no permissions needed

https://nuttx.apache.org/docs/latest/

"GPT-3 can run code"

https://mayt.substack.com/p/gpt-3-can-run-code?s=r

Computer Science Curriculum with #RustLang

https://github.com/AbdesamedBendjeddou/Rusty-CS

Apache #NuttX RTOS renders graphics on ST7789 Display with #LVGL Library ... All shall be explained in this article

https://lupyuen.github.io/articles/st7789?1

"Exploiting Tuya IoT devices for fun and profit"

https://rb9.nl/posts/2022-03-29-light-jailbreaking-exploiting-tuya-iot-devices/

#NuttX RTOS is bundled with #LVGL 7.3.0 ... But latest version of LVGL is 8.2.0 ... And LVGL 8 is NOT backward compatible with LVGL 7 🤔

https://github.com/lupyuen/st7789-nuttx#lvgl-version

#LVGL Demo runs OK with ST7789 Display on Apache #NuttX RTOS! 🎉

https://github.com/lupyuen/st7789-nuttx#run-lvgl-demo

#NuttX's #LVGL Demo App inits the ST7789 Display, renders some widgets and handles LVGL Events

https://github.com/lupyuen/st7789-nuttx#lvgl-demo-app

Let's test the #LVGL Library and Demo App bundled with Apache #NuttX RTOS

https://github.com/lupyuen/st7789-nuttx#configure-nuttx

ST7789 Display Driver feels laggy on #BL602 #NuttX ... Hope to fix this with SPI DMA

https://github.com/lupyuen/st7789-nuttx#render-pink-screen

Apache #NuttX RTOS boots with a Pink Screen on ST7789 Display! 🎉

https://github.com/lupyuen/st7789-nuttx#render-pink-screen