Lup Yuen Lee 李立源 @lupyuen@qoto.org

Record and replay an #RF Signal with GNU Radio

https://www.blackhillsinfosec.com/gnu-radio-primer/

"#STM32 F03x and F04x microcontrollers out of stock"

https://www.reddit.com/r/embedded/comments/m3o106/stm32_out_of_stock/?utm_medium=android_app&utm_source=share

"In 2021, you should buy critical ICs before creating your PCB layout"

https://www.reddit.com/r/PrintedCircuitBoard/comments/m3ovns/in_2021_you_should_buy_critical_ics_before/?utm_medium=android_app&utm_source=share

Adding #elifdef and #elifndef to C

https://thephd.github.io/no-us-without-you-elifdef-elifndef-c-n2645

MiSTer #FPGA: Building the ultimate retro computer

https://www.theverge.com/22323002/mister-fpga-project-retro-computer-console-early-pc

#FPGA-Based #Arduino Clones on Steroids

https://www.eejournal.com/article/fpga-based-arduino-clones-on-steroids/

#Pine64 Podcast: So awesome that #PineCone #LoRaWAN is mentioned 😀

https://www.pine64.org/2021/03/12/004-gpu-o-rama/

Red Hat #Linux Systems Under Attack By New RedXOR #Malware

https://threatpost.com/linux-systems-redxor-malware/164689/

#Qualcomm struggles to meet chip demand as shortage spreads to phones

https://www.channelnewsasia.com/news/business/qualcomm-struggles-to-meet-chip-demand-as-shortage-spreads-to-14387226

#LoRaWAN Parameters in Apache #Mynewt OS ... We shall port the LoRaWAN Driver from Mynewt to #BL602

https://github.com/apache/mynewt-core/blob/master/net/lora/node/syscfg.yml

Cast your #Android device to #Linux with Scrcpy

https://opensource.com/article/21/3/android-raspberry-pi

#LoRaWAN Packet Encryption

https://lora-alliance.org/resource_hub/lorawan-104-specification-package/

What's inside a #LoRaWAN Packet

https://lora-alliance.org/resource_hub/lorawan-104-specification-package/

Each #LoRaWAN Packet transmitted by a device is followed by 1 or 2 Receive Windows ... LoRaWAN Specs are surprisingly readable! 👍

https://lora-alliance.org/resource_hub/lorawan-104-specification-package/

Chip shortage and high prices threaten supplies of SBCs and other electronics products

https://www.cnx-software.com/2021/03/12/chip-shortage-and-high-prices-threaten-supplies-of-sbcs-and-other-maker-products/

#PinePhone: A #Linux smartphone a developer could love

https://www.infoworld.com/article/3610602/pinephone-a-linux-smartphone-a-developer-could-love.html

#LoRaWAN Devices are either Class A, B or C

https://lora-alliance.org/resource_hub/lorawan-104-specification-package/

#LoRaWAN Technical Overview

https://lora-alliance.org/resource_hub/lorawan-104-specification-package/

#LoRaWAN Frequency Regions of the World ... Thanks to Mynewt

https://github.com/apache/mynewt-core/tree/master/net/lora/node/src/mac/region