Tito781227 wrote:i didn't know these prices exists
Search on AliExpress for ESP8266 and you've landed in ESP-heaven.
When you're new, don't begin with a separate ESP (ESP-01 to ESP-14) module.
Get yourself a proper development board: NodeMCU - WeMos D1 - Witty Board - ESP Thumbdrive
ESP power requirements are 3.3V±10%@500mA: HLK-PM03 (AC mains to 3.3V@1A)