Solar-powered long-range water-tank monitor — LoRa to an ESP32 hub with OLED + LED indicators. MQTT-native + Home Assistant integration via HACS. Open firmware (AGPL-3.0), open hardware (CC BY-SA 4.0). Works fully offline; hosted PWA optional. First product in the SmartGhar ecosystem.

SPARROW — Solar-Powered Acoustic and Remote Recording Observation Watch. An AI-enabled edge device for biodiversity monitoring with camera-trap imaging and bioacoustic recording. By Microsoft AI for Good Lab.

A pro micro form factor nRF52840 controller board

Inhero MR-2 hardware variant — fork of meshcore-dev/MeshCore

A developed Self-Sustaining, Solar-Powered Smart Plant Care System

Solar-powered, AI-driven smart irrigation for smallholder farmers. ESP32 + React + FastAPI — fully open-source.

Solar-powered Raspberry Pi knowledge station serving offline Wikipedia via Kiwix. Long-range LoRa mesh network (Meshtastic planned). Autonomous, resilient, designed for disaster zones and remote areas. A lighthouse when everything burns. 🔥

A self-powered fire alarm system designed for factory safety using a thermistor, LM358 op-amp, and a buzzer. The system is powered by a solar panel and detects abnormal temperature rises (~55°C), triggering an audio alert. Ideal for sustainable, low-cost industrial fire protection.

Free open-source LoRa mesh network — encrypted messaging, sensor monitoring, GPS tracking. Flash in 60 seconds, no soldering

5 Novel Patent Applications for Mathematical Learning Devices - Wearable Tactile Math Sleeve, AR Spatial Projection, Solar AI Slate, Parametric 3D Fabrication, Neural Cognition Band

Solar-powered search-and-rescue rover: an ESP32 raises its own Wi-Fi access point, serves a command centre from PROGMEM, listens for survivors through a peak-to-peak microphone envelope, and estimates its position by dead reckoning — reporting state as a 9-bit self-framing telemetry word.

Solar-powered Particle Photon weather station with MQTT telemetry and Home Assistant integration

Solar-powered RTU sensor HAT for transmission tower DLR deployment

Autonomous infrastructure for underserved communities — drone delivery and mesh communication on solar-powered nodes