ESP8266 Module with STM32 F4 Discovery

This is a sample application using STM32F4 Discovery board connect with ESP-12-Q module using IAR workbench

Pin Connection

Pin	State
VCC	3.3 V
GND	0 V
EN	High
GPIO 0	High
GPIO 15	Gnd

STM32F4 Pin Connection

The board is connected using UART 2

Pin	State
GPIOA_2	ESP8266_RX
GPIOA_3	ESP8266_TX

Reference

• ESP8266 Wiki