Remote Pump Control Using 2x Heltec LoRa 32 Modules (ESP32 LoRa Boards)
Excerpt:How I built a low-cost, long-range pump control system using just two Heltec LoRa 32 modules — no internet or GSM required. Overview Remote pumps — whether for boreholes, tanks, or irrigation — are often far from Wi-Fi, GSM, or cable runs. Here’s how I used two Heltec LoRa 32 (V2) boards to control and…