Smart Kheti Gateway

The Smart Kheti Village Gateway acts as a communication bridge between field sensors and the cloud. It uses an ESP32 LoRa Hub with an EC200U LTE modem, supporting up to 30 devices. The ESP32 collects sensor data through LoRa 866 MHz, while the LTE modem sends it to the cloud. The gateway collects soil moisture, temperature, NPK, pH, and EC data and securely transmits it using MQTT over TLS 1.2, X.509 certificates, and oneM2M.