⚡ IoT-Based Prepaid Energy Meter ⚡ IoT-Based Prepaid Energy Meter with RF Mesh and Firebase Cloud Managing power consumption efficiently is critical, especially in shared environments like hostels, rental homes, and industrial setups. This project presents a wireless prepaid energy metering system using nRF24L01+ , ESP8266 , PZEM004T , and Firebase Firestore . The system allows real-time energy monitoring, cloud-based recharge, and automatic cut-off when balance is depleted. 🔧 System Overview Child Node: Arduino Nano + PZEM004T + Relay + nRF24L01+ Gateway (Parent Node): ESP8266 (NodeMCU) + nRF24L01+ Cloud Backend: Firebase Firestore (NoSQL) Key Features ⚡ Real-time energy measurement (Voltage, Current, Power, kWh) 💰 Prepaid balance logic with relay cut-off 📶 RF communication in scalable tree topology ☁️ Cloud integration with Firebase Firestore 📱 Recharge via Web/App or Firebase Console 📶 Multi-Level RF Topology The sys...
Beginner's world of embedded systems, IoT, ESP32, STM32, BLE, and more.