How to use Wifi on Pi 3

I am new to PI and Home Assistant. not like other Linux i have use. How to set up Wifi on Now i use lan

In the install instructions there is a part about wifi ( You modify the file /boot/system-connections/resin-sample with your wifi settings.

This worked for me for initial installation, but I haven’t tested to change it afterwards, although I assume it should work. Otherwise, there is a link to the resinOS HowTo in the install instructions.

It read this file every boot. So you can change values from it without a problem.

It not work after installation. I will try to reflash the sdcard

I have try to flash the hassio and setting wifi, but it is NOT work. I try hassbian and it work. Resin itself have some problem with wifi on the PI 3 too