My device has two modes: 1. Normal work mode. In this mode device periodical wakes to do measurements and check if collector device available. If collector found (by BLE) device connects to WIFI AP and upload a file to web-server. 2. Setup mode. Device starts WIFI access point (no password), starts ...

Added a delay(20); in loop and this doens't help. Device can connect to other APs fast and reliable (less than 1 second) but its own AP just doesn't work - i can make 30-50 failed connections to get one success :( Also I use BLE and noticed that BLEDevice::init(""); takes 1400 milliseconds after dee...

Hi. I want esp32 to start own access point with fixed IP in setup mode and start web server. So I write a code: void start_board_webserver() { IPAddress local_ip(192, 168, 4, 1); IPAddress subnet(255, 255, 255, 0); WiFi.persistent(false); WiFi.softAPConfig(local_ip, local_ip, subnet, IPAddress(192, ...

Thanks! I'll try this. Also I think I found another way: start ble server on collector with large broadcast frequency, so sensor device can periodically do passive ble scan on all 3 channels with very short window and after detecting specific ble server start wifi client and try to connect AP to sen...

I'm working on battery-powered (18650, 3.7, 3500mah, xc6220) sensor device based on esp32. This device should capture and record temperature sensors data and then send data to collector IF it available. The collector visit device once a week or even month at a random time. Collector is device (proba...