Lup Yuen Lee 李立源 @lupyuen@social.cleverlibre.org

@veer66 I think they are talking about Grab: https://www.bbc.com/news/business-56967633

#BL604 GPIO 17 is now free from the MOSI Curse! But nothing appears on #ST7789 Display 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/3wire/customer_app/pinedio_st7789/pinedio_st7789/demo.c#L53-L75

Yep MISO and MOSI are now swapped! This matches the SPI Pin Definitions in #BL604 Reference Manual ... So from now on we'll always call GLB_Swap_SPI_0_MOSI_With_MISO

https://github.com/lupyuen/bl_iot_sdk/blob/3wire/customer_app/pinedio_st7789/pinedio_st7789/demo.c#L53-L75

@JF discovered this function from #BL604 IoT SDK that swaps MISO and MOSI ... Let's test GLB_Swap_SPI_0_MOSI_With_MISO

https://github.com/lupyuen/bl_iot_sdk/blob/3wire/customer_app/pinedio_st7789/pinedio_st7789/demo.c#L53-L75

Analysis of Amazon Echo's Network Behavior

https://arxiv.org/abs/2105.13500

'Imperfect' Virtual Influencer challenges traditional beauty standards

https://www.cnn.com/style/article/angie-douyin-virtual-influencer/index.html

"PLCs in unexpected places"

https://www.reddit.com/r/PLC/comments/pb7tcq/plcs_in_unexpected_places/?utm_medium=android_app&utm_source=share

"Tauri vs Flutter"

https://www.reddit.com/r/rust/comments/pb4bqm/tauri_or_flutter/?utm_medium=android_app&utm_source=share

"Developers that bundle ever more features into a Super App risk frustrating users"

https://www.channelnewsasia.com/commentary/super-app-grab-gojek-taxi-food-delivery-pay-big-tech-2135026

Weekly #Linux Phone news / media roundup

https://linmob.net/linbits-59-weekly-linux-phone-news-week33-34/

Intro to JQ, the command-line JSON processor

https://earthly.dev/blog/jq-select/

The Search for a FLOSS Mobile OS

https://blog.emacsen.net/blog/2021/08/23/floss-mobile-os-aug-2021/

GPIO 4 works as MOSI but not GPIO 17 ... What if we connect GPIO 4 to 17? Nope still nothing on the #PineDio Stack ST7789 Display 🤔

Which is super strange because GPIO 4 is supposed to be MISO on #BL604 ... Not MOSI! 🤔

https://lupyuen.github.io/articles/spi#spi-data-pins-are-flipped

Yep #BL604 MOSI works if we switch to GPIO 4 ... So what's wrong with GPIO 17? 🤔

#BL604 doesn't seem to be transmitting anything to ST7789 on SPI MOSI (GPIO 17) ... Let's try a different pin for MOSI

ST7789's CS Pin (GPIO 20) is not exposed on #PineDio Stack's GPIO Connector ... So we use GPIO 5 to Shadow the CS Pin

https://github.com/lupyuen/bl_iot_sdk/blob/3wire/customer_app/pinedio_st7789/pinedio_st7789/display.c#L504-L534

#PineDio Stack SPI Port is exposed on the GPIO Connector ... So we connect our Logic Analyser there

https://github.com/lupyuen/bl_iot_sdk/blob/3wire/customer_app/pinedio_st7789/pinedio_st7789/display.h#L48-L58