PlantPulse is an open-source, rugged, and intelligent IoT hardware platform designed as part of the LankaSmartFarm DPI initiative. It enables precision farming through sensor-driven insights and remote control, built specifically for the tropical agriculture challenges of Sri Lanka and similar regions.
This universal device combines sensing, communication, and control in a modular, scalable way—empowering farmers and AgriTech developers with real-time actionable data and automation.
- Monitors:
- pH
- Soil Moisture
- Soil Temperature
- Electrical Conductivity (EC)
- Nitrogen (N)
- Phosphorus (P)
- Potassium (K)
- Periodic sensing powered by a separate 12V replaceable battery to preserve energy for critical reads.
- Speaker + Microphone for:
- Insect repellent sound pulses
- Audible alarms
- Acoustic anomaly detection (under research)
- Bug detection via visual traps
- Animal trespass monitoring using computer vision models or IR sensors
- Remotely control drip irrigation systems
- Activate nutrient delivery only when required
- Support for up to 10 auxiliary IOs
- Configurable for lighting, spraying, fans, or custom actuators
- Acts as the brain of the PlantPulse network
- Connects to the cloud for telemetry reporting and receiving commands
- Commands child sensors dynamically—no need for hardcoded logic on each device
- Manages sensor behaviour and firmware updates centrally
- Connected via RF or LoRa for long-range, low-power communication
- Powered by:
- MCU battery (rechargeable via compact solar panel array)
- 12V sensing battery for heavy sensor reads
- Contain RGB status LEDs for local feedback (alarm, status, fault, etc.)
- Built-in self-check and debugging capabilities to detect sensor connectivity or hardware faults
- IP67-rated enclosure
- Engineered to survive:
- Tropical humidity
- Heavy rainfall
- High UV exposure
- Impacts from falling fruits like coconuts or mangoes
- Can be securely fixed to the ground
PlantPulse aims to be:
- Fully open-source (hardware schematics + firmware)
- Modular and extensible
- Built using off-the-shelf components wherever possible
- Maintainable and upgradeable in the field with no need for full reprogramming
- Reduces manual labour and guesswork in plantation and field farming
- Supports climate-resilient agriculture by providing precise micro-level insights
- Scales easily from backyard farms to large estates
- Aligns with Digital Public Infrastructure (DPI) and DPG principles
- ✅ Hardware architecture and component design – In Progress
- ⚙️ Firmware development – Early Stage
- 📶 Communication protocol – RF/LoRa planned
- 🔬 Bug and trespass detection – Research stage
- 🔋 Solar & battery power testing – Prototyping
Stay tuned for schematics, BOM, and reference firmware.
We welcome hardware tinkerers, firmware developers, Agri researchers, and field testers.
Check our CONTRIBUTING.md to get started.
This project will be released under an open hardware-compliant license (e.g., CERN-OHL or Solderpad License). Final terms TBA.
“Data grows when rooted in the soil. PlantPulse makes the invisible visible — one sensor at a time.”