Can't connect to wifi

Question

Hello guys, I've got a problem during the setup.

Everything works fine but the module don't want to connect to my wifi: I tried my wifi at work and also in home but nothing, I saw that it tried to connect but nothing happen.

So I tried to connect it to my phone via wifi and here the system work istantly. I put the same setup of home wify, 2.4ghz and wpa2.

Thank you for the help

Comments

There's this WiFi Scanner which you can use to find networks the ESP8266 thinks are available e.g. the one here https://github.com/esp8266/Arduino/blob/master/libraries/ESP8266WiFi/examples/WiFiScan/WiFiScan.ino  Also, please take a look at the "Diagnostics" chapter in the ESP8266 Arduino documentation at https://arduino-esp8266.readthedocs.io/en/latest/esp8266wifi/readme.html#diagnostics

Answer 1

The HOSTNAME is now 32 chars after they added -color to it. Remove at least 1 char from the HOSTNAME in settings.h and it will connect.

Comments

That is fixed by the most recent commit https://github.com/ThingPulse/esp8266-weather-station-color/commit/c52d098056ba3446f69f856e895aa8fe935c3d8a

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I suspect there is still a 'memory walker' bug. Some piece of code is probably off by one. These are one of the most difficult bugs to fix. Back in the day when I had a professional environment I would put a watchpoint on that 32nd position to catch the code that is at fault but at 82 I no longer have the tools or current knowledge. Maybe one of the younger developers knows how to do that.