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

Handling 23 GPIOs on #BL604 with Apache #NuttX RTOS ... GPIO Expander can help!

https://lupyuen.github.io/articles/pinedio2?23#gpio-expander

#NuttX Features bundled for #PineDio Stack #BL604

https://lupyuen.github.io/articles/pinedio2?27#appendix-bundled-features

Reversing Sound Blaster X7 (Bluetooth)

https://sayr.us/reverse/soundblaster-reverse/

"rand() may call malloc()" (Reentrancy Macro)

https://www.thingsquare.com/blog/articles/rand-may-call-malloc/

"Bringing Anonymous Decentralized Messenger to #PinePhone" (Speek)

https://www.reddit.com/r/PINE64official/comments/u0dzs3/bringing_anonymous_decentralized_messenger_to/?utm_medium=android_app&utm_source=share

All 23 GPIOs used by #PineDio Stack #BL604 ... Interesting muxing! 🤔

https://lupyuen.github.io/articles/pinedio2?24#appendix-gpio-assignment

#PineDio Stack #BL604 supports CBOR Encoding for LoRa messages

https://lupyuen.github.io/articles/pinedio2?22#test-cbor-encoder

Testing #LoRaWAN on #PineDio Stack #BL604 with Apache #NuttX RTOS

https://lupyuen.github.io/articles/pinedio2?21#test-lorawan

#LoRa Birdhouse Mesh Network

https://github.com/brucemack/WARS-Birdhouse

Here's how we test #LoRa on #PineDio Stack #BL604

https://lupyuen.github.io/articles/pinedio2?20#test-lora

#LoRa and LoRaWAN work great on #PineDio Stack #BL604!

https://lupyuen.github.io/articles/pinedio2?19#appendix-sx1262-lora-transceiver

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

https://www.cnx-software.com/2022/04/09/mangopi-mq-pro-a-20-risc-v-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