Description of WiFi Module ESP8266 4MB Flash By Sparkfun Overview The ESP8266 WiFi Module is a self contained SOC with integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network. The ESP8266 is capable of either hosting an application or offloading all WiFi networking functions from another application processor. Each ESP8266 module comes pre-programmed with an AT command set firmware, meaning, you can simply hook this up to your Arduino device and get about as much WiFi-ability as a WiFi Shield offers (and that's just out of the box)! The ESP8266 module is an extremely cost effective board with a huge, and ever growing, community. This module has a powerful enough on-board processing and storage capability that allows it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, including the front-end module, is designed to occupy minimal PCB area. The ESP8266 supports APSD for VoIP applications and Bluetooth co-existance interfaces, it contains a self-calibrated RF allowing it to work under all operating conditions, and requires no external RF parts. There is an almost limitless fountain of information available for the ESP8266, all of which has been provided by amazing community support. In the Documents section below you will find many resources to aid you in using the ESP8266, even instructions on how to transform this module into an IoT (Internet of Things) solution! Note: The ESP8266 Module is not capable of 5-3V logic shifting and will require an external Logic Level Converter. Please do not power it directly from your 5V dev board. Key Feature Fully self-contained WiFi networking with TCP/IP stack and soft-AP support Onboard low-power 32-bit processor usable as an application core Compact, cost-effective module with minimal external circuitry Supports Wi-Fi Direct (P2P), VoIP APSD, and Bluetooth co-existence Backed by a strong developer community and extensive documentation Technical Specifications Parameter Specification WiFi Standards 802.11 b/g/n Flash Memory 4MB CPU Integrated low-power 32-bit processor Communication Interfaces UART, SPI, SDIO 1.1 / 2.0 Output Power 19.5dBm (802.11b mode) Soft Access Point (Soft-AP) Supported Wi-Fi Direct (P2P) Supported TCP/IP Protocol Stack Integrated Power Management Integrated with DCXO, PLLs, regulators RF Components Integrated TR switch, balun, LNA, PA Power Down Leakage <10 µA Standby Power (DTIM3) <1.0 mW Packet Transmission Time <2 ms (wake up & transmit) MIMO Support 1×1 MIMO, 2×1 MIMO, STBC Aggregation Support A-MPDU & A-MSDU, 0.4ms guard interval Documentation ESP8266 (Schematic) Applications IoT and smart home devices Wireless sensor networks Arduino/microcontroller WiFi projects Home automation systems Embedded WiFi in electronics Packaging Details 1 × WiFi Module ESP8266 4MB Flash Attention Note: This item is non-returnable. If it arrives damaged or is not functioning properly, please get in touch with us to determine if further action may be taken. Need Help? Our engineers are available to assist you. If you have any queries, please leave a comment below or call 09678110110 from 09:00 am to 08:00 pm (7 days a week). You can also reach us via Live Chat or Facebook Inbox.
