A home aquaponics unit for aromatics — fish and plants in one closed loop — built around a recovered fish tank with a CNC-fabricated structure. In the fabrication stage; its sensing and automation reuse the GROUU basic node and sensor set, reporting into the same server stack.
Aquaponics couples a fish tank to a grow bed: fish waste feeds the plants, the plants clean the water. This V3 build grows aromatics at home from recovered material and digital fabrication; GROUU's role is to watch the loop — the same sense → node → stack pattern as every other node. It grows out of the earlier fishTank auto-feeder rather than starting from scratch.
Goal: close a small food loop with low inputs, and use it as a design-research exercise in reuse and digital carpentry. The node keeps the loop in view and, later, in range.
The closed loop, and the reused sensing path into the shared stack.
◄ clean water returns — a closed loop.
Built around a recovered fish tank, insulated with CNC-milled cork, on a CNC-fabricated structure — 2D digital carpentry + 3D-CAM molds. The precursor electronics (a NodeMCU + ESP-01 with a 3D-printed auto-feeder) are being folded into the GROUU nodes.
Design-level so far — a mix of recovered material and digital fabrication; sensing follows the greenhouse library (water temperature/level, ambient climate) reusing calibrated GROUU drivers. Models and calibration land here once selected.
| Part | Role | Source |
|---|---|---|
| Recovered fish tank | The grow / rearing container | — |
| CNC-milled cork | Insulation for the tank | — |
| CNC-fabricated structure | 2D digital carpentry + 3D-CAM molds | — |
| NodeMCU + ESP-01 + 3D-printed feeder | Precursor electronics & auto-feeder | fishTank ↗ |
| Sensors (TBD) | To follow the greenhouse sensor set | see Greenhouse |
Sensor and control code follow the completed basic sensor node and the actuator module (pumps, feeder), both publishing over MQTT — not written from scratch. Node-specific config lands here.
Concept and loop are set and the structure is being fabricated; electronics reuse the reference nodes. Reproduction mirrors the other nodes — fabricate the structure, flash the reused basic-node firmware, wire the sensors and feeder, point it at a broker — with detailed steps filled in as the sensor set finalises.
Fabrication photos and the 3D model are added as the build progresses.