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Engineering & schematics

Engineering & schematics

The working product, from every angle

Concept renders, exploded assembly, wiring and data paths, the AutoFit environment scan, and the universal adapter system — shown together as one buildable design. Every figure is a proposed engineering target pending bench validation.

A Romeo Foundation product. Perpetual Revenue Covenant: 100% of all HabitatHalo revenue is permanently directed to the Romeo Community Housing Initiative Foundation, which owns all associated intellectual property. Every purchase supports housing and community programs.

Concept renders — all angles

Tap any image to bring it up full-size with a fuller description. These are concept renders of the proposed working product, not photographs of a finished unit.

Eight-segment exploded assembly

Every size shares the same stack, top shell to adapter layer. Only the footprint and bay count scale. Tap any segment to see what it is, why it is specified that way, and why it sits where it does.

Power & data block diagram

How power is distributed and where the data flows. SelfSense™ diagnostics watch every rail.

Mains / PoE++ in

Facility or wall supply

PSU + fusing

SelfSense™ monitors every rail

Control pod (SoC + AI accelerator)
Cassette bays 1–N
Sensor mast + pan-tilt camera
Fluid / mist module
Control podWi-Fi / BLECloud + app

Proposed engineering targets pending bench validation.

Safety-first wiring architecture

Two separate controllers keep the animal's core protections in force no matter what the software does.

Safety MCU (STM32G071)

Independent controller for heaters, fans and pump with its own watchdog, dual-sensor plausibility checks, zero-cross TRIAC switching and force-guided relay disconnect. Drops power within ~10 ms on a hatch-interlock trip.

Host MCU (ESP32-S3)

Runs the touchscreen UI, local database and Wi-Fi/BLE. It is isolated (SPI/UART with CRC-16) and cannot override the Safety MCU.

Protective hardware

72 °C thermal fuse, high-limit thermostat, dual force-guided relays, fused mains inlet with GFCI/RCD, and full mains / low-voltage / wet-side isolation.

SelfSense™ diagnostics

Continuously monitors every power rail and reports faults to the app.

AutoFit environment scan

On install and continuously after, the unit reads the real enclosure and calibrates care to it — a five-stage scan-to-care loop. Care behaviors remain pending professional veterinary review.

1

Scan

IR + LiDAR + camera sweep the enclosure

2

Model

Builds a 3-D + thermal spatial map

3

Fit

Recommends size + adapter set

4

Calibrate

Sets set-points to real hot/cool zones

5

Care

Continuous monitoring; loop repeats

Scan sensorSpec (target)Role in scan
Thermal IR camera160×120 microbolometer, ±0.5 °CLocates real basking / cool zones
ToF / LiDAR depth0.1–4 m, ±1 cmMeasures internal dimensions & volume
Visual camera1080p, 850 nm IR ring, pan-tiltSubstrate / water-feature recognition
Environmental mastTemp / RH / VOC / CO₂ / lux / UVBaseline atmosphere calibration

Universal adapter system

Five fixed canopy sizes plus four adapter families cover every enclosure from a 10-inch desktop tank to a 120-inch+ zoo exhibit — with overlapping ranges so nothing falls between sizes.

AdapterAdjustment rangeMaterialFits
A. Telescoping end-caps (2×)0–60 mm per side (120 mm total)6063-T5 aluminium + POM sliderBridges canopy-to-enclosure length gap
B. Expandable rim brackets (2–4×)Rim 4–25 mm thickGlass-filled nylon, SS thumb-screwFramed & frameless top rails
C. Universal clamps (2–4×)Jaw 8–55 mm; standoff 20–120 mmSilicone-lined zinc alloyFrameless glass, PVC, mesh tops
D. Suspension kit (Commercial)Drop 0.3–3 m, free-spanSS aircraft cable + turnbucklesOpen-top & walk-in exhibits

Build values by size class

Every size runs the identical AI brain, cassette architecture and SelfSense™ diagnostics — only the physical footprint scales.

ModelEnclosure fitCanopy L × D × HBaysMax powerMounting
HH-S (Nano / Small)10–30″ / 10–40 gal457 × 152 × 102 mm (18 × 6 × 4″)3≤75–150 WTop-rail or rear-wall bracket
HH-M (Medium)30–48″ / 40–120 gal914 × 203 × 114 mm (36 × 8 × 4.5″)5≤300 WTop-rail or rear-wall bracket
HH-L (Large)48–72″ / 120–240 gal1219 × 254 × 127 mm (48 × 10 × 5″)6≤600 WRear-wall bracket
HH-XL (XL)72–96″ / 240–480 gal1524 × 305 × 140 mm (60 × 12 × 5.5″)8≤600 W+Rear-wall bracket + side supports
HH-Commercial (Mega / Zoo)96–120″+ / 480–720 gal+1829 mm+ × 356 × 152 mm (72″+ × 14 × 6″)10 (dual)Facility-fedTruss / ceiling / free-span

All rail pitch 200 mm. Figures are proposed engineering targets pending bench validation.

Bill of materials (core build)

The main components to build one medium unit. Part numbers are real, verifiable engineering selections; confirm live pricing and availability at order time. Camera and IR-ring parts are honest placeholders that are not yet sourced.

Core components
#ComponentManufacturerPart numberQtyNote
1Dual Temp/RH sensorSensirionSHT41-AD1B-R22Verified datasheet exists; re-check pricing at order time
2Non-contact IR temp sensorMelexisMLX90614ESF-DCI1Reads real basking-surface temperature
3Safety microcontrollerSTMicroelectronicsSTM32G071KBT61Independent safety controller
4Application MCU boardEspressifESP32-S3-WROOM-1U1UI, local DB, Wi-Fi/BLE
524 V power supplyMean WellLRS-100-241Primary low-voltage rail
616 A 800 V TRIACSTMicroelectronicsBTA16-800BW3G1Zero-cross heater switching
7Force-guided safety relayOmronG7SA-2A2B DC241Series disconnect for loads
8Optocoupler TRIAC driverVishayIL4202Mains / low-voltage isolation
94.3 in capacitive LCDWaveshare4.3inch-DSI-LCD1Touchscreen UI
1060 mm PWM MagLev fanSanyo Denki9GA0612P7G012Ventilation / electronics cooling
1124 V diaphragm pumpOEMFL-2202 24V Mini1Misting / fluid module; exact OEM to confirm
12Thermal cutoff, 72 °CMicrotemp classG4A01072C2Verify exact trip temp on chosen part
136063-T6 aluminum extrusionCustomHH-EXT-MED-011Chassis; needs local supplier quote
14Camera module (proposed)TBDTBD1Not yet sourced — placeholder, no price fabricated
15IR LED ring, 850 nm (proposed)TBDTBD1Not yet sourced — placeholder, no price fabricated

Proposed engineering selections pending bench validation and licensed-EE sign-off. No prices are fabricated.

Wiring & connection schedule

How the parts connect — the safety-first power and signal paths. This is a schematic-level architecture for review by a licensed electrical engineer before any mains-connected bench test.

Power & signal connections
FromThrough / protectionToNotes
Mains / wall supplyFused inlet + GFCI/RCD (site electrician)Power supply (Mean Well LRS-100-24)Mains compartment physically isolated from wet + low-voltage sides.
Power supply 24 V railSelfSense™ rail monitoringSafety MCU, Host MCU, fans, pumpSingle monitored low-voltage rail feeds all logic and DC loads.
Switched mainsTRIAC (BTA16) driven by optocoupler (IL420)Heater loads (halogen / DHP)Zero-cross firing; in series with the force-guided relay.
Safety MCU (STM32G071)Force-guided relay coil + TRIAC gateHeater / fan / pump loadsDrops power within ~10 ms on a hatch-interlock trip.
Thermal fuse (72 °C) + high-limit thermostatSeries in the load circuitHeater loadsHardware limit independent of any software.
Sensors (SHT41 ×2, MLX90614)I²C busSafety MCU + Host MCUDual-sensor plausibility check before any heat is allowed.
Host MCU (ESP32-S3)DSI / GPIO4.3 in touchscreen, Wi-Fi/BLE, cameraApp + connectivity only; never core control.
Safety MCU ↔ Host MCUIsolated SPI/UART, CRC-16 checked(link only)Host MCU cannot override Safety MCU limits.

Do not power a mains prototype without EE sign-off and proper fusing/GFCI protection in place.

Thermal budget (medium unit worked example)

The heat-loss math that sizes the heaters and cooling — so a builder can size parts correctly for a real enclosure.

Heat load & sizing

Example enclosure

Medium 120 × 60 × 60 cm (0.432 m³)

Glass heat loss

≈ 100 W (A 1.92 m², U 5.8, ΔT 9 K)

Mesh heat loss

≈ 78 W (A 0.72 m², U 12.0, ΔT 9 K)

Total heat loss

≈ 178 W

Heater sizing (×1.4 safety)

≈ 249 W → 100 W halogen + 150 W DHP (250 W peak)

Electronics-bay rise

≈ 4 K above ambient (28 W dissipated, ratings not approached)

Thermal barrier

3.0 mm mica-ceramic (UL94 V-0 target, to verify)

All figures are proposed engineering calculations pending bench validation, not verified third-party test results.

Full engineering diagram book

Every segment, adapter mechanism, cross-section and block diagram in one document.

Open the engineering diagram book (PDF)

Important disclosures

  • HabitatHalo is not a medical device and does not diagnose, treat, cure, or prevent any disease.
  • Animal-care guidance is provided for husbandry support only and is PENDING PROFESSIONAL VETERINARY REVIEW. Always consult a qualified exotic-animal veterinarian for health decisions.
  • Hardware capabilities described here are PROPOSED ENGINEERING TARGETS PENDING BENCH VALIDATION and are subject to change.
  • All prices are planning estimates (“Est.”) and are not an offer of sale. Availability, features, and pricing may change.

Nathaniel Jerome Romeo Fell III · Romeo Community Housing Initiative Foundation · 938 Kalamath St, Denver CO 80204 · (720) 246-1534 · EIN 41-4327332