The DFRobot UNIHIKER K10 (DFR0992) looks on paper like an ideal compact IoT device: an ESP32-S3-WROOM-1 (8MB PSRAM, 16MB Flash), an onboard 2.8-inch color TFT, an AHT20 …

It’s pretty easy to get lost in all the PCIe jargon and, as a non-technical person, figure out what the specs actually mean and what they do. It’s even more important for …

Continuing from my last build, the firmware running on the macropad was based on CircuitPython. It was doing the job just fine, but I wanted to add a few more features. …

I recently went on a bit of a shopping spree and ended up with a pile of new hardware to play with. Somewhere in that pile was this RP2350 board from Waveshare with a …

using pico keys on rp2350 dev board.

I wanted to try printing with a 1 mm nozzle, so I needed something fairly simple to test it with. I ended up going with this rectangular trash can. Rectangular Trash Can …

I’ve been closing the loop between KiCad and openEMS for antenna tuning, no manual coordinate transcription, no guesswork. Edit the copper in KiCad, simulate, read …

If you have ever stared at a newly selected high-pin-count Ball Grid Array (BGA) and found yourself guessing how many layers your PCB stackup actually needs, you are not …

The Find I found a great deal on a small drawing bot, likely intended for writing addresses on envelopes. One thing that immediately caught my attention was the pen …

Overview The GPIO Hacker Board is an I2C GPIO expander designed for the Prusa Core One. It allows external hardware to be controlled directly from the printer using …