Lup Yuen Lee 李立源 @lupyuen@qoto.org

Yep @JF and I have plenty to test on #PineDio Stack #BL604 @PINE64 ... If you're keen to help please let us know! 🙏

https://lupyuen.github.io/articles/pinedio?18#seeking-volunteers

Maybe our #ST7789 Display isn't wired for 3-Wire (9-Bit) Interface? 🤔

https://lupyuen.github.io/articles/pinedio?17#problem-with-st7789

We ported moononournation's awesome 9-Bit-Banging Arduino GFX Library to #BL604 ... But something seems broken in our #ST7789 Display 🤔

https://lupyuen.github.io/articles/pinedio?16#arduino-gfx-ported-to-bl604

Nope nothing appears on #PineDio Stack's #ST7789 Display 😭

https://lupyuen.github.io/articles/pinedio?15#does-it-work

Testing the 9-Bit Packing ... With Linux and a spreadsheet

https://lupyuen.github.io/articles/pinedio?14#test-the-9-bit-packing

How we pack 9-Bit Data for 8-Bit SPI

https://lupyuen.github.io/articles/pinedio?13#packing-9-bit-data

Sending 9-Bit Data to #ST7789 ... Over 8-Bit SPI? 🤔

https://lupyuen.github.io/articles/pinedio?12#9-bit-spi-for-st7789

#PineDio Stack uses the 3-Wire Interface for #ST7789 ... Instead of the familiar 4-Wire Interface

https://lupyuen.github.io/articles/pinedio?11#st7789-display

#BL604 SPI Pins are Swapped! 🙄 Here's the workaround for #PineDio Stack

https://lupyuen.github.io/articles/pinedio?10#spi-pins-are-swapped

Always have a Logic Analyser ready ... When testing Prototype Hardware! 👍

https://lupyuen.github.io/articles/pinedio?9#logic-analyser

SPI with DMA on #PineDio Stack #BL604

https://lupyuen.github.io/articles/pinedio?8#transfer-spi-data

Freely Available Programming Books

https://ebookfoundation.github.io/free-programming-books/

How we init the #PineDio Stack #BL604 SPI Port

https://lupyuen.github.io/articles/pinedio?7#initialise-spi-port

Grafana Labs raises $220 million in Series C investment round

https://www.zdnet.com/article/grafana-labs-raises-220-million-in-series-c-investment-round/

"1-in-20 middle- and high-school-age students have bullied themselves online"

https://quillette.com/2021/08/27/the-victim-race/

Toyota pauses Paralympics self-driving buses after one hits visually impaired athlete

https://www.theguardian.com/technology/2021/aug/28/toyota-pauses-paralympics-self-driving-buses-after-one-hits-visually-impaired-athlete

"Who's making sure AI technologies are used ethically and for the greater good?"

https://spectrum.ieee.org/open-source-ai

30 free and open source #Linux games

https://github.blog/2021-08-27-30-free-and-open-source-linux-games-part-3/

SPI Bus on #PineDio Stack #BL604 ... Shared by ST7789 Display, LoRa SX1262 and SPI Flash

https://lupyuen.github.io/articles/pinedio?6#bl604-spi