FDRS: Send ESP32 IoT Data Without WiFi (Ideal for Remote Farms & Fields)

Farm Data Relay System diagram showing ESP32 LoRa sensor nodes, relay gateways, ESP-NOW and LoRa hops across a farm, plus a Raspberry Pi front-end dashboard connected through GPIO UART and MQTT.

No WiFi? No Problem—ESP32 IoT Data Still Travels Far & Fast If you’ve tried to use an ESP32 IoT sensor in a remote area with no WiFi and Internet, you’ve probably run into the same problem. Maybe you want to check temperatures in a greenhouse, watch water levels in a distant pond, or record soil moisture over a … Read more