Lup Yuen Lee 李立源 @lupyuen@qoto.org

Just realised I've been using #PineDio Stack #BL604 @PINE64 sideways all along 😂

https://github.com/lupyuen/cst816s-nuttx#screen-is-sideways

#BL602 GPIO issues on #NuttX ... Stay vigilant! 👍

https://github.com/apache/incubator-nuttx/issues/5810#issuecomment-1098633538

#PineDio Stack's CST816S Touch Panel is a peculiar I2C Device ... It won't respond to I2C Scan unless we tap the screen and wake it up!

https://github.com/lupyuen/cst816s-nuttx#i2c-scan

#NuttX Driver for Cypress MBR3108 Touch Controller looks structurally similar to #PineDio Stack's CST816S ... So we copy-n-paste into our CST816S Driver

https://github.com/lupyuen/cst816s-nuttx#cypress-mbr3108

Now coding the #PineDio Stack #BL604 Touch Panel Driver for Apache #NuttX RTOS 😬 ... Same I2C Touch Panel as PineTime

https://github.com/lupyuen/cst816s-nuttx

Upcoming Features for #NuttX RTOS on #PineDio Stack #BL604 ... Lots to do!

https://lupyuen.github.io/articles/pinedio2?31#upcoming-features

Automated Testing on #PineDio Stack #BL604

https://lupyuen.github.io/articles/pinedio2?30#automated-testing

We need SPI DMA on #BL602 for better multitasking

https://lupyuen.github.io/articles/pinedio2?29#spi-direct-memory-access

2 types of SPI Flash on #PineDio Stack #BL604 ... Wonder why 🤔

https://lupyuen.github.io/articles/pinedio2?28#spi-flash

Porting #PineDio Stack #BL604's Touch Panel Driver to Apache #NuttX RTOS

https://lupyuen.github.io/articles/pinedio2?26#touch-panel

Push Button on #PineDio Stack #BL604 will appear as "/dev/buttons"

https://lupyuen.github.io/articles/pinedio2?25#push-button

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

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

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