Lup Yuen Lee 李立源 @lupyuen@qoto.org

How will we know if our #BL602 + #LoRa SX1276 are misbehavin’ on the airwaves? We got a spy ... An AirSpy Software Defined Radio

https://airspy.com/airspy-r2

Our #LoRa SX1276 (actually RF96) is factory configured for 434 MHz, sez the Frequency Registers ... #BL602 will tune it to 923 MHz for Singapore

https://github.com/lupyuen/bl_iot_sdk/blob/lora/customer_app/sdk_app_lora/sdk_app_lora/demo.c#L199-L213

#BL602 #SPI Unsolved Mystery ... BL602 must be configured for SPI Phase 1 to talk to #LoRa SX1276 ... But SX1276 actually uses SPI Phase 0! 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/lora/customer_app/sdk_app_lora/sdk_app_lora/sx1276-board.c#L112-L137

Yep #BL602 talks OK to #LoRa SX1276 over SPI ... SX1276 register values look correct ... Now let's transmit a LoRa Message!

https://github.com/lupyuen/bl_iot_sdk/blob/lora/customer_app/sdk_app_lora/sdk_app_lora/demo.c#L199-L213

Let's test whether #BL602 can talk to #LoRa SX1276 over SPI ... By dumping some SX1276 registers

https://github.com/lupyuen/bl_iot_sdk/blob/lora/customer_app/sdk_app_lora/sdk_app_lora/demo.c#L199-L213

#PineCone #BL602 nearly out of pins (and colours) for #LoRa SX1276 ... Let's use these pins for now

https://github.com/lupyuen/bl_iot_sdk/blob/lora/customer_app/sdk_app_lora/sdk_app_lora/sx1276.h#L24-L54

Let's test the #BL602 #LoRa Driver ... With the "LoRa Ping" app ported from #Mynewt OS

https://github.com/apache/mynewt-core/blob/master/apps/loraping/src/main.c

#BL602 #MagicHome Community needs help coding 1️⃣ Flash Storage 2️⃣ ADC Input ... Would you be able to help? 🙏

https://www.reddit.com/r/RISCV/comments/knsju9/flashing_firmware_to_pinecone_bl602/gpcmqyc?utm_medium=android_app&utm_source=share&context=3

#BL602 #MagicHome Community has reverse engineered the GPIO Pin Assignment for the WiFi LED Controller ... So cool!

https://www.reddit.com/r/RISCV/comments/knsju9/flashing_firmware_to_pinecone_bl602/gpaglms?utm_medium=android_app&utm_source=share&context=3

Transmit and Receive #SPI Data on #RISCV #BL602 ... Piece of kueh! 🍰

https://github.com/lupyuen/bl_iot_sdk/blob/lora/customer_app/sdk_app_lora/sdk_app_lora/sx1276.c#L245-L286

#BL602 IoT SDK builds #LoRa Driver successfully yay! Now filling in the SPI Functions to talk to SX1276

https://github.com/lupyuen/bl_iot_sdk/blob/lora/customer_app/sdk_app_lora/sdk_app_lora/sx1276.c#L213-L252

#LoRa SX1276 Driver listens for GPIO Interrupts on 6 (!) GPIO Pins ... Maybe #BL602 can defer this ... If we're not receiving LoRa Packets 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/lora/customer_app/sdk_app_lora/sdk_app_lora/sx1276-board.c#L137-L185

Porting #LoRa SX1276 Driver from Mynewt to #BL602 IoT SDK

https://github.com/lupyuen/bl_iot_sdk/blob/lora/customer_app/sdk_app_lora/sdk_app_lora/sx1276-board.c#L64

Red Bean Soup with Barley

https://en.m.wikipedia.org/wiki/Hong_dou_tang

Now hacking #MagicHome #BL602 WiFi LED Controller

https://www.reddit.com/r/RISCV/comments/knsju9/flashing_firmware_to_pinecone_bl602/gopw0lm?utm_medium=android_app&utm_source=share&context=3

Finished migrating 40 articles from Medium to GitHub Pages yay! 🎉 ... Check out the restored articles: STM32 Blue Pill, nRF52, GD32 VF103, NB-IoT, Mynewt, Visual Rust

https://gist.github.com/lupyuen/6c48aaab0f3b76d92cdb7e437f7eec3c#file-article-migration-md

Violent virus 🤔

https://mothership.sg/2021/02/covid-19-vaccines-the-difference-between-pfizer-sinovac/

Zany #IoT adventures of "Moon Base One" are back! 😂

https://lupyuen.github.io/articles/get-started-with-nb-iot-and-quectel-modules

Moving your #Medium articles to #GitHubPages? Check out this Commit History to see how I did it in 13 steps

https://github.com/lupyuen/lupyuen.github.io/commits/master/articles/advanced-topics-for-visual-embedded-rust-programming.html

Inspecting 40 articles migrated from Medium to GitHub Pages

https://gist.github.com/lupyuen/6c48aaab0f3b76d92cdb7e437f7eec3c#file-article-migration-md