Lup Yuen Lee 李立源 @lupyuen@qoto.org

Starting the #BL602 #LoRa SX1262 Driver ... Fails with an SPI Assertion Failure 😭 ... Let's find out what's wrong 🤔

(Yep Assertions are very helpful! 👍)

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/components/3rdparty/lora-sx1262/src/sx126x-board.c#L152-L158

Oops sorry we took down the photos ... There's something really exciting inside ... Will let #Pine64 reveal the surprise 😉

What's inside the @PINE64 #LoRa Gateway

https://twitter.com/TvPrivacy/status/1382551710032347139?s=19

Let's test the SPI Connection between #BL602 and #LoRa SX1262 by reading some registers ... Yep the values are consistent ... Looks promising 🙏

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/customer_app/sdk_app_lorawan/sdk_app_lorawan/demo.c#L112-L128

Run our 3-In-1 #BL602 Script that Builds, Flashes and Runs BL602 Firmware ... Works exactly like 3-in-1 coffee mix 👍

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/customer_app/sdk_app_lorawan/run.sh

AssemblyScript vs JavaScript performance

https://surma.dev/things/js-to-asc/

Google Online Security Blog: #RustLang in the #Linux kernel

https://security.googleblog.com/2021/04/rust-in-linux-kernel.html

PineCone #BL602 with #Pine64 #LoRa Module all boxed up ... Let's test this! 🙏

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/components/3rdparty/lora-sx1262/include/sx126x-board.h#L36-L63

Pine64 #LoRa SX1262 / RFM90 Module ... Connected to #PineCone #BL602 @ThePine64 ... Have some Wonderful Copenhagen Butter Cookies!

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/components/3rdparty/lora-sx1262/include/sx126x-board.h#L36-L63

#LoRa SX1262 (top) vs SX1276 (bottom) ... Pinouts are similar

👍

HopeRF RFM90 Datasheet explains VREG, DCC and VCC ... Challenging my Chinese skills

🤔

#LoRa SX1262 Power Amplifier baffles me ... Wish I was an Engineer 🤔

https://semtech.my.salesforce.com/sfc/p/#E0000000JelG/a/2R000000HT76/7Nka9W5WgugoZe.xwIHJy6ebj1hW8UJ.USO_Pt2CLLo

#LoRa SX1262: VREG vs DCC vs VCC ... Which shall I connect to power? 🤔

https://semtech.my.salesforce.com/sfc/p/#E0000000JelG/a/2R000000HT76/7Nka9W5WgugoZe.xwIHJy6ebj1hW8UJ.USO_Pt2CLLo

#IBM spinoff 'Kyndryl' joins a long list of questionable corporate names

https://www.cnn.com/2021/04/12/business/kyndryl-ibm-corporate-names/index.html

"Difference between #Arduino and a #Microcontroller?"

https://www.reddit.com/r/embedded/comments/mqjn5n/difference_between_arduino_and_a_micro_controller/?utm_medium=android_app&utm_source=share

#RustLang: A second language in the #Linux kernel

https://lkml.org/lkml/2021/4/14/1023

#BL602 #LoRa SX1262 Driver ... One last build error to be fixed ... G'nite!

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/components/3rdparty/lora-sx1262/src/sx126x-board.c

We map these #LoRa SX1262 functions to the #BL602 Hardware Abstraction Layers: GPIO, SPI and Interrupts

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/components/3rdparty/lora-sx1262/src/sx126x-board.c

#RustLang is for Professionals

https://gregoryszorc.com/blog/2021/04/13/rust-is-for-professionals/

Ship of Theseus: ‘Wandavision’ turned its finale into a Philosophical Thought Experiment

https://junkee.com/wandavision-ship-of-theseus/292432