Daniel kalu
DIIDevHeads IoT Integration Server
•Created by Daniel kalu on 8/19/2024 in #edge-networking
How can I resolve "ESP_ERR_ESPNOW_IF: Interface error" when using ESP-NOW with SoftAP on ESP32?
Hey guys I'm facing an issue with my ESP32 project, where the central controller acts as a soft Wi-Fi access point with a web server and communicates with three peripheral devices via ESP-NOW. Despite ensuring that the Wi-Fi and ESP-NOW channels are identical, I keep seeing the error "ESP_ERR_ESPNOW_IF: Interface error" when calling
esp_now_send().
This project extends my previous ESP32 home automation hub with predictive maintenance, where I used ESP32 boards for sensor data collection and OTA updates. Now, I'm trying to integrate ESP-NOW communication with the web server and SoftAP capabilities. I've tried switching to SoftAP mode, but the issue persists. How can I resolve this and ensure reliable communication between the devices?7 replies