Lup Yuen Lee 李立源 @lupyuen@qoto.org

#Redis Database Basics – How the Redis CLI Works, Common Commands, and Sample Projects

https://www.freecodecamp.org/news/how-to-learn-redis/

And now #BL602 #LoRa SX1262 receives LoRa Packets successfully from RAKwireless #WisBlock yay! 🎉

https://github.com/lupyuen/wisblock-lora-transmitter

Semtech's Reference Implementation of #LoRa SX1262 Driver is a little odd ... It doesn't process interrupts automatically! Fortunately on #BL602 FreeRTOS we can easily forward the interrupt to the Application Task for processing

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/components/3rdparty/lora-sx1262/src/radio.c#L1249-L1267

Seeking #LoRa names @PINE64

https://www.pine64.org/2021/04/15/april-update-new-developments/

"High-level language for #embedded systems that is faster than Micropython?"

https://www.reddit.com/r/embedded/comments/mr9uxx/highlevel_language_for_embedded_systems_that_is/?utm_medium=android_app&utm_source=share

Why #RustLang Strings seem hard

https://www.brandons.me/blog/why-rust-strings-seem-hard

RAKwireless #WisBlock receives #LoRa Packets ... From #PineCone #BL602 connected to #Pine64 LoRa Module! 🎉 Now we do the other way ... WisBlock sending LoRa Packets to BL602

https://github.com/lupyuen/wisblock-lora-receiver

Awesome #LoRa Goodies @PINE64 ... Many thanks to RAKwireless 👍

https://www.pine64.org/2021/04/15/april-update-new-developments/

Huge relief because HopeRF RFM90 Datasheet doesn't say that #LoRa 923 MHz is supported for Asia Region ... But we proved that the #Pine64 LoRa Module works at 923 MHz!

👍

#LoRa Chirp transmitted by #BL602 LoRa SX1262 Driver ... Captured by Airspy SDR ... In super slo mo

Sorry I goofed ... Mixed up microseconds and milliseconds in #BL602 #LoRa SX1262 Driver ... Now AirSpy SDR shows the complete LoRa Chirp! 🎉

https://github.com/lupyuen/bl_iot_sdk/commit/bbd5395e04160d97f7d56193ad7f0a2022bcb45d

We have configured the #BL602 #LoRa Transmit Timeout as 3 seconds ... But it's timing out way too quickly ... Possibly quitting the packet too soon ... Lemme check the Timer Code 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/customer_app/sdk_app_lorawan/sdk_app_lorawan/demo.c

@AmpBenzScientist Actually the BL602 SDK Situation mystifies me...

(1) BL602 SDK seems to be created for AliOS. But it doesn't match the AliOS API completely. (Like the SPI functions)

(2) The SDK docs are not available in Chinese. I think most folks (including me) just copy the sample apps and tweak them.

But I'm really happy that the BL602 SDK actually works, once we take the time to figure it out.

@jz @AmpBenzScientist @PINE64 Erm GD32VF103 unfortunately has it's own headaches. And I think it's short on supply now.

Here's what I think about GD32VF103: https://lupyuen.github.io/articles/hey-gd32-vf103-on-risc-v-i-surrender-for-now

@AmpBenzScientist Another thing that bugs me about BL602 vs ESP32-C3...

(1) ESP32-C3 has a well-documented SDK. Unfortunately it seems to be force-fitted into a legacy API that's not so well designed.

(2) BL602 SDK looks more modern. But the docs are missing (and I'm filling in the gaps)