ESP 01 and Arduino UNO

[Farhan (Farhan Ashraf)]

Sir please help, how ESP 01 and Arduino UNO can communicate with use AT command , and Also share circuit diagram.

[jtd (Jude T Dsouza)]

This one uses hardware serial pins of arduino with at commands
https://create.arduino.cc/projecthub/58296/air-meter-making-1-use-the-arduino-wi-fi-module-esp-01-91f2a5

This one uses a bitbanged software serial with at commands
https://create.arduino.cc/projecthub/jeffpar0721/add-wifi-to-arduino-uno-663b9e

Note that level translation of 5v arduino io pins to 3.3v of the ESP is important else you will damage the ESP.