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WiFi Module - ESP8266 (4 MB Flash)

SparkFun | A-000000-04741
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ESP8266 WiFi Module: program, then connect

This WiFi module, designed as a self-contained system-on-chip, includes a TCP/IP protocol stack, 4 MB memory and a host of additional hardware (regulators, amplifiers, etc.). It will enable any microcontroller, including an Arduino board, to access your WiFi network as part of a connected project.

Its small size in no way compromises its development possibilities thanks to its GPIO ports. A word of caution, you’ll need to install a logic level converter for use with a 5V microcontroller.

Technical specifications of the ESP8266 Module

  • 802.11 b/g/n
  • P2P WiFi Direct, soft access point
  • TCP/IP protocol stack
  • TR Switch
  • Balun
  • LNA amplifier
  • Power amplifier
  • Matching network
  • Phase-locked loops
  • Regulators
  • DCXO
  • Power management units
  • Output power: +19.5 dBm in 802.11b mode
  • Power down leakage current of <10 uA
  • Flash memory: 4 MB
  • Integrated low power 32-bit CPU: can be used as an application processor
  • SDIO 1.1 / 2.0, SPI, UART
  • STBC, 1×1 MIMO, 2×1 MIMO
  • A-MPDU and A-MSDU aggregation, 0.4 ms guard interval
  • Wake up and transmit packets in <2 ms
  • Standby power consumption of <1 mW (DTIM3)
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