A 192-channel phased array microphone, with FPGA data acquisition and beamforming/visualization on the GPU. Phased arrays allow for applications not possible with traditional directional microphones, as the directionality can be changed instantly, after the recording is made, or even be focused at hundreds of thousands of points simultaneously in real time.

Jay Carlson looks at the Puya PY32 microcontrollers

This is a neat project that uses a scriptable (in lua) USB power meter / PD trigger to charge lithium batteries.

I enjoyed this series on prototyping/product development of an electronics kit.

I like this idea

He uses a little CNC mill to create wood mold masters for silicone molds which he casts polyurethane parts in. It seems to work well.

"Both the original Omnibot and this revised approach feature a novel reconfigurable drivertrain, which enables the robot to perform on-the-spot 360° turns and to effortlessly alternate between forward and sideways motion. As opposed to most other omnidirectional designs, Omnibot can do so without losing registration with the environment, and without relying on exotic and expensive components. In fact, it uses just three extremely cheap brushed motors and four regular wheels."

Nice interview with Ian Lesnet of Dangerous Prototypes. I haven't heard much about Dangerous Prototypes in the last few years... I hope he's still doing some kind of open hardware somewhere.

Good overview of how probe parasitics affect measurements.

big list of electronics youtube channels and related resources

A short article on the Hackaday blog about one of my projects

The Commodordion is an 8-bit accordion primarily made of C64s, floppy disks, and gaffer tape. Article includes a video of the Commodordion in action.

A 6502 game console (h/t hackaday.com)

Directly controlling an OLED display via HDMI.

Doug Ford's classic 2009 article on how oscilloscope probes work including how 10x probes use lossy coax to improve frequency response.

Jay Carlson's excellent write up of the very inexpensive Padauk microcontroller's.