Things we've built.
Original hardware Pomsera has designed, assembled, and put to real use on our own bench: write-ups of what we built and why, not polished product pages.
Chua's circuit on a breadboard
The simplest electronic circuit that is provably chaotic: two capacitors, an inductor, and a homemade nonlinear resistor, built and measured on the bench.
Read the write-upA bench power monitor, start to finish
We were tired of guessing at current draw with a multimeter in series. So we built a small INA226-based monitor that lives on the bench permanently, from schematic to enclosure.
Read moreAn ESP32 environmental sensor node
Temperature, humidity, and particulate readings from a small battery-powered board, built to sit on a shelf and report back for months without anyone touching it.
Read moreA USB-C PD trigger board
Bench supplies are great until you need 20V at your desk and the supply is across the room. A small board that negotiates a fixed voltage from any USB-C PD charger on command.
Read moreA four-channel relay driver for the fume extractor
A small board that turns the fume extractor on automatically when the soldering iron's stand is picked up, and off again a few minutes after it's put down.
Read more