Lup Yuen Lee 李立源 @lupyuen@qoto.org

Reflections On Using #Haskell For My Startup

https://alistairb.dev/reflections-on-haskell-for-startup/

"SwitchBot: A Smart Button Pusher For Your Dumb Devices!"

https://youtu.be/ZgFt6BiD7-k

Introduction to ARM Semihosting

https://interrupt.memfault.com/blog/arm-semihosting

#PineCone #BL602 @PINE64 talking #UART to Grove #EInk Display ... All shall be explained in this (short) article ... Thanks for watching the 24-hour #RISCV BL602 Hackathon! 🙏

https://lupyuen.github.io/articles/uart

Yep Grove #EInk Display doesn't need power from #PineCone #BL602 @PINE64 ... Unless we're pushing pixels to the display

https://github.com/lupyuen/bl_iot_sdk/blob/eink/customer_app/sdk_app_uart_eink/sdk_app_uart_eink/demo.c

How we use Red to fill in as Grey ... On Grove #EInk Display

https://github.com/lupyuen/pinetime-graphic/blob/master/src/main.rs#L99-L153

Today's "Catchphrase" is ... "#BL602 Pushing Pixels" 😂 ... Or maybe "BL602 Haunts My Dreams" 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/eink/customer_app/sdk_app_uart_eink/sdk_app_uart_eink/demo.c

... Channelling my inner Bob Ross 😂

Grove #EInk Display supports 3 colours: Black, White and Red ... Let's use Red to fill in as Grey ... Here's the #RustLang code for converting Greyscale PNG to Black and Red Bitmaps

https://github.com/lupyuen/pinetime-graphic/blob/master/src/main.rs#L99-L148

Mopped up the hot mess on Grove #EInk Display ... Are you seeing what I'm seeing, #BL602?

https://github.com/lupyuen/bl_iot_sdk/blob/eink/customer_app/sdk_app_uart_eink/sdk_app_uart_eink/demo.c

#BL602 UART renders an image on Grove #EInk Display yay! But first we need to fix the pixel encoding for this hot mess 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/eink/customer_app/sdk_app_uart_eink/sdk_app_uart_eink/demo.c

"Why did I leave #Google or, why did I stay so long?"

https://paygo.media/p/25171

129,000 #Singtel customers' personal information, including NRIC details, stolen in data breach

https://www.channelnewsasia.com/news/singapore/singtel-data-breach-customer-information-stolen-nric-14219268

#BL602 UART Port sends pixels to Grove #EInk Display ... Black Pixels then Red Pixels

https://github.com/lupyuen/bl_iot_sdk/blob/eink/customer_app/sdk_app_uart_eink/sdk_app_uart_eink/demo.c

#BL602 UART Handshake with Grove #EInk Display works OK yay! Good Board!

https://github.com/lupyuen/bl_iot_sdk/blob/eink/customer_app/sdk_app_uart_eink/sdk_app_uart_eink/demo.c

#BL602 doing the UART Handshake with Grove #EInk Display ... Good Board!

https://github.com/lupyuen/bl_iot_sdk/blob/eink/customer_app/sdk_app_uart_eink/sdk_app_uart_eink/demo.c

Let's connect Grove #EInk Display to #BL602 at Pins 3 and 4 ... The second UART Port in BL602 Device Tree

https://lupyuen.github.io/articles/flash#uart

Am I supposed to feel Pain with Grove #EInk Display ... ? Getting worried 🤔

https://wiki.seeedstudio.com/Grove-Triple_Color_E-Ink_Display_2_13/

Grove #EInk Display runs on a cute UART protocol: "c" ... "a" ... "b" 😂

https://github.com/Seeed-Studio/Grove_Triple_Color_E-lnk_2.13/blob/master/examples/Eink_factory_code_213/Eink_factory_code_213.ino#L419

...And that was one of many Kitchen Sink Photos I've taken 😉

https://github.com/lupyuen/lupyuen.github.io/blob/master/images/display-backlight.jpg