Wifi ESP8266 + Arduino Pro Mini 5V

Hello,

I want to use the WiFi ESP8266 chip to read a message from the Arduino Pro Mini 5V, and send it through WiFi to a client (e.g. computer, phone..).

  • I have a SparkFun FTDI Basic Breakout - 5V to program the Arduino;
  • I have a 3.3V power supply for the ESP8266;
  • My WiFi ESP8266 baudrate is 115200.

Can someone elucidate me how can I program the Arduino to send a message (e.g. a string with 8 values, I know how to create the message, I just don't know how to send it to the ESP8266) to the WiFi ESP8266, and also, how can I program the WiFi ESP8266 to create a connection to send the received message (from the arduino) through wifi to a client.

Also I would like to ask, if possible, which are the required circuit connections.

Thanks,
Regards.