The ESP8266 WiFi Module is a versatile and cost-effective SOC (System on a Chip) that enables any microcontroller to connect to a WiFi network. It comes with an integrated TCP/IP protocol stack and can function as a standalone application host or offload WiFi networking tasks from other processors. Pre-programmed with an AT command set firmware, it can easily be connected to an Arduino device, providing WiFi capabilities similar to a WiFi Shield.

The ESP8266 module boasts a powerful on-board processor and storage capacity, making it ideal for integrating with sensors and other devices through its GPIOs. This integration requires minimal upfront development and runtime loading. Its high level of on-chip integration reduces the need for external circuitry, resulting in a compact PCB design.

Notably, the ESP8266 supports APSD for VoIP applications and interfaces for Bluetooth co-existence. It features a self-calibrated RF, ensuring reliable performance under various conditions, without the need for external RF components.

The ESP8266 enjoys strong community support, with a wealth of resources available for users. A vast array of information and documentation can be found, aiding users in harnessing the full potential of this module, including transforming it into an Internet of Things (IoT) solution.

Features:

802.11 b/g/n

Wi-Fi Direct (P2P), soft-AP

Integrated TCP/IP protocol stack

Integrated TR switch, balun, LNA, power amplifier and matching network

Integrated PLLs, regulators, DCXO and power management units

+19.5dBm output power in 802.11b mode

Power down leakage current of <10uA

4MB Flash Memory

Integrated low power 32-bit CPU could be used as application processor

SDIO 1.1 / 2.0, SPI, UART

STBC, 1×1 MIMO, 2×1 MIMO

A-MPDU & A-MSDU aggregation & 0.4ms guard interval

Wake up and transmit packets in < 2ms

Standby power consumption of < 1.0mW (DTIM3)