Hardware
How to upgrade your ESP8266 to 4MB (in under 2 minutes)
Cheap homemade 30 MHz - 6 GHz vector network analyzer
Software
On the subject of debuggers and tracers
An AVR Atmega library for multiple HD44780 based LCD connected through I2C
The GNU C Library version 2.24 is now available
Misc
Raspberry Pi 3 gets Ethernet and USB boot modes
How to have fun with the government when they ask you to put a backdoor into your IoT product