Lup Yuen Lee 李立源 @lupyuen@qoto.org
- Pronouns/Gender/Sexuality
- He/Him/They, Bisexual/Asexual 🇸🇬
- Date of Birth
- 1969
- Articles
- https://lupyuen.org
IoT Techie and Educator / Apache NuttX PMC
Joined Jan 2020
Fixing a Race Condition with SPI Chip Select ... For #NuttX on #PineDio Stack #BL604
https://lupyuen.github.io/articles/pinedio2?17#sx1262-chip-select
#BL602 talks to ST7789 Display in SPI Mode 1 or Mode 3 ... Here's why
https://lupyuen.github.io/articles/pinedio2?18#st7789-spi-mode
Shared SPI Bus works OK on #PineDio Stack #BL604 ... While #NuttX swaps MISO and MOSI on the fly! 🎉
https://lupyuen.github.io/articles/pinedio2?16#test-shared-spi-bus
Co-creator of Doraemon, Fujiko A. Fujio, passes away aged 88
https://mothership.sg/2022/04/doraemon-co-creator-pass-away/
How we flip MISO or MOSI as the ST7789 Data / Command Pin ... For #NuttX on #PineDio Stack #BL604
https://lupyuen.github.io/articles/pinedio2?15#spi-command--data
MangoPi MQ Pro - A $20 #RISCV alternative to Raspberry Pi Zero W
#NuttX handles the Shared SPI Bus on #PineDio Stack #BL604 ... By looking up the SPI Device Table
https://lupyuen.github.io/articles/pinedio2?12#select--deselect-spi-device
Deciphering an English exorcism manual
https://blogs.bl.uk/digitisedmanuscripts/2022/03/exorcism-manual.html
Pin Definitions for #PineDio Stack #BL604 on Apache #NuttX RTOS
https://lupyuen.github.io/articles/pinedio2?11#pin-definitions
Warp raises $23M to build a better terminal (#RustLang)
https://techcrunch.com/2022/04/05/warp-raises-23m-to-build-a-better-terminal/
Swapping SPI MISO and MOSI on the fly ... Because ST7789 is wired "backwards" on #PineDio Stack #BL604
https://lupyuen.github.io/articles/pinedio2?10#swap-miso--mosi
iRobot Launches Create 3, With ROS 2 Built In
#Linux on Mobile Weekly Update
#PineDio Stack #BL604 connects ST7789 Display, LoRa SX1262 and SPI Flash to a Shared SPI Bus ... Here's how we modded #NuttX RTOS to support this
https://lupyuen.github.io/articles/pinedio2?9#appendix-shared-spi-bus
"(Google) Pixel spare parts will be available for purchase at ifixit.com"
https://www.blog.google/outreach-initiatives/sustainability/pixel-phone-repairs/
Lup Yuen Lee 李立源
boosted
@lupyuen that's pretty cool about the symbolics machine: i had no idea their machines had that much of a role in computer graphics. every time I think of lisp machines, I think of them like artifacts from a possible alternative time line where C and other algol-likes didn't become as dominant
Lup Yuen Lee 李立源
boosted
@lupyuen it's amusing to imagine those early days when one of the devs managed to get the polys and shaders just right for recognizable, but still blocky, boobs, and the art director or whoever says, "we might just have something here, guys"
that's not to trivialize what they did though: these were real artists, designers, and seriously impressive programmers that made FF7
brief documentary about them and the game: https://m.youtube.com/watch?v=jNQfY3G35y0
- Pronouns/Gender/Sexuality
- He/Him/They, Bisexual/Asexual 🇸🇬
- Date of Birth
- 1969
- Articles
- https://lupyuen.org
IoT Techie and Educator / Apache NuttX PMC
Joined Jan 2020
