ESP8266 Community Forum

My ESP8266 work fine. I put temperature and humidity values on Excel file in GoogleDrive but today I have an error, Arduino IDE can not open URL of Json file. I updated the URL to http://arduino.esp8266.com/stable/packa ... index.json and it´s OK. Now I wanted to update the ESP8266 in the Board Manager to version 2.5.2 but when I loaded the same code on the board and executed it, it gave an error on port 443.

I removed latest version 2.5.2 and installed version 2.4.2 and now everything works perfectly.

Does anyone know why this error is generated when updating to the latest version?

Thank you!

Port 443 is https, perhaps the server responds with a redirect to https://arduino.esp8266.com/ which the new Arduino IDE can't handle?
Try entering the URL with https instead of http; does that work?

Or maybe port 443 is just closed in your firewall for this new IDE (try disabling your firewall to test it)?

hello there i am new here and i am working on a project of my college
we are supposed to make an RFID attendance system for them and the component we are using is an Arduino mega, an RFID reader and a tag, and a lolin NodeMCU ESP8266 wifi module the thing is
i haven't worked on Arduino and the ESP8266 but i am trying my best to make it work now i followed the given instruction in the documentation for the ESP8266 but the port com3 doesn't show up
so i am installing the older version of the is same board is it ok or not