A USB-C powered self-watering soil pot for one plant, in two parts: a clean square soil pot with a real drainage floor and matching saucer, and a separate desk-side enclosure holding the brain, a 1.02 L lift-out reservoir, and the pump. One wall adapter runs the whole product.
Two housings, wet and dry kept apart
The desk enclosure is split by a full-height sealed divider into a wet bay (the lift-out reservoir + pump) and a dry bay (the Feather ESP32-S3 + MOSFET driver). The reservoir is a separate lift-out vessel — the wet bay is a spill-catch, not the tank — and the wet→dry divider is breached only by a single tube pass-through near the top of the wall, so a wet-side overflow pools ~90 mm deep before it could ever reach the electronics.
Real components, real geometry
Every electronic part is modeled from verified vendor CAD — the Feather ESP32-S3, the 4026 STEMMA soil sensor and the MOSFET driver are Adafruit's own STEP files. Boards seat on printed standoffs with pilot bores for heat-set inserts; the USB-C port reaches the outside wall; cable exits carry printed zip-tie posts so a yanked desk cable can't pull on a JST.
What's in the pack
Print-ready STL for all 7 printed parts, editable STEP for each, a wired BOM with real Amazon-sourceable parts, PETG print settings + leak-test steps for the reservoir, full assembly and wiring guides, twelve renders (six studio + six inspection close-ups), and a self-contained interactive 3D viewer.