Why does my esp doesn’t connected to my hotspot. I’ve tried do it several times before and it turn out well…But suddenly, the esp can’t connect to my wifi…I’ve tried in two different esp (i have two of them) but still it doesn’t connect to wifi… I’ve also tried uninstalling install Blynk app, changers the auth token several times, using different usb wire, I’ve tried using my friend’s hotspot, laptop, and like everything!!..I’ve done everything possible causing that error and still…not connected…why???
Well… clearly something at your end changed… but not sure how we can really help. This is the Blynk forum, but your issue is not Blynk specific. and Blynk doesn’t have a crystal ball widget.
Start from the beginning with some basic ESP examples (non-Blynk) and reconfirm operational condition of your IDE, power source and ESPs (LED blink sketch, etc), then work your way up the ladder to basic WiFi examples, then cellular hotspot connections and finally back to Blynk related connections and sketches.