Solutions
Smart home · Outdoor
Smart 4G + Wi-Fi Lawn Sprinkler Controller
ESP32 + cellular controller with soil-moisture and rain-forecast scheduling.
Zones
Up to 8 (expandable 16)
Water savings
30–55% vs timer-only
Connectivity
Wi-Fi + 4G fallback
Target BOM
$26–$36
01 / Where it ships
8-zone Wi-Fi/4G sprinkler, weather-aware, voice-assistant ready, water-budget reports.
01
Suburban lawn & garden
Local forecast skips watering if rain is expected within 12 hours.
02
Vacation home, no Wi-Fi
4G fallback keeps the schedule running when the home Wi-Fi is offline.
03
HOA & landscaping ops
Fleet view of dozens of controllers; water-budget reports per property.
02 / System architecture
Sensors, MCU, and connectivity — co-designed end-to-end.
Architecture · block diagramReference
BLOCK-307BELINKAGE · REV-A
03 / Key selections
Production-grade parts. Not a generic reference board.
| Area | Recommended | Note |
|---|---|---|
| Main SoC | Espressif ESP32-S3 | Wi-Fi, BLE 5, native Matter |
| Cellular fallback | Quectel EC800M-EU / NA | Pop-in module slot |
| Valve driver | Triac per zone, in-rush protected | 24 VAC, 1 A continuous |
| Soil sensor | Capacitive probe, BLE wireless | Coin-cell 1-year life |
| Enclosure | Wall-mount, NEMA-3R rated | Outdoor garage / shed |
04 / Specifications
Detailed specifications.
Zones
8 (expandable to 16)
Connectivity
Wi-Fi, BLE 5, Cat.1 bis fallback
Smart home
Matter, Alexa, Google Home
Inputs
Rain sensor, flow meter, soil probe
Power
24 VAC + 1500 mAh Li-ion backup
Operating temp
-20°C to +55°C
Enclosure
Wall-mount, NEMA-3R
Dimensions
180 × 130 × 48 mm
05 / Customization
Fork the design. We tailor it.
Anything below can be configured per program. Tell us what changes and we'll come back with a delta BOM and timeline.
- App + cloud (white-label) with EU + US data residency
- Local weather API integration
- Smart-home certifications (Matter / Alexa / Google)
- Voice assistant onboarding flows
- Pro installer mode + commercial branding
- Optional flow + leak detection
06 / MOQ & lead time
Production terms.
- MOQ
- 1,000 units
- Sample lead time
- 12 working days
- Mass production
- 30–35 days from PO
- Payment terms
- 30% T/T deposit, 70% before shipment
07 / Certifications
Compliance scope.
- CE
- FCC
- RED 3.3
- RoHS
- REACH
- Matter (optional)
- ETL listed (optional)