Esp8266 esp 12 esp12 esp12e wifi module
ESP8266EX is typically used in applications ranging from smart switches, smart lighting, smoke detectors, gas sensors, temperature-humidity sensors, smart displays, etc. ESP-12 is a very tiny board. It is built around Espressif’s Wi-Fi chipset ESP8266EX. Module ESP-12, compared with ESP-1 has more pins exposed on board.
ESP8266EX is a 802.11bgn WiFi chip, that can be used in IoT applications, and integrates the following components:
Tensilica L106 low power 32-bit MCU that can run at up 160MHz
GPIO x16 (up to 5 used for interface with flash)
all RF components
WiFi baseband, MAC, TCP/IP
advance standby and sleep modes
SPI / UART / SDIO connectivity
The application code is usually stored on an external NOR flash device; for a typical application 512kB is more than enough. The flash is accessed through a cache; about 35kB internal SRAM is available to the user for stack and temporary storage.
ESP8266 serial WIFI model ESP-12 / ESP-12E . ESP12E Authenticity Guaranteed ESP12 Photos: