Lup Yuen Lee 李立源 @lupyuen@qoto.org

@marcuse1w #LoRa is great for IoT Education ... It lets us put long-range low-power sensors out in the wild ... Because WiFi is too power hungry, short range too 🙂

Here's how we init the #BL602 UART Port ... Yep BL602 Pins are surprisingly versatile

https://lupyuen.github.io/articles/uart#initialise-uart-port

Grove #EInk Display gets weirdly flashy ... Whenever we power on #BL602 🤔

https://youtu.be/mEChT3e-ITI

Waiting for #RISCV #BL602 + #LoRa 🤔

https://www.cnx-software.com/2021/02/18/lora-e5-stm32wl-module-offers-lorawan-networking-in-a-12x12mm-package/

"this action still taints their standing as good stewards in the open source community"

https://www.jeffgeerling.com/blog/2021/microsoft-repo-and-key-are-automatically-added-raspberry-pis

How we connect #PineCone #BL602 @PINE64 to Grove #EInk Display over UART

https://lupyuen.github.io/articles/uart#connect-bl602-to-grove-e-ink-display

SPI with the Sharp PC-G850V

https://kongduino.wordpress.com/2021/02/18/spi-with-the-pc-g850v/

#BL602 UART Hardware Abstraction Layer ... High Level vs Low Level

https://lupyuen.github.io/articles/uart#bl602-uart-hardware-abstraction-layer-high-level-vs-low-level

#UART is still relevant to #RISCV #BL602 ... Even after 60 years!

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

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

@brandon Haha yeah... Don't look too close 😉

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