Max Filippov edited this page Mar 6, 2015 · 20 revisions

Welcome to the esp8266 wiki!

Current status

  • A working GCC-based Toolchain
  • Open-source tools for working with the firmware images and serial protocol
  • A closed/NDA SDK (work is being done getting this into the open)

What is this ESP8266

  • It's a wireless SoC
  • It has GPIO, I2C, ADC, SPI, PWM and some more
  • It's running at 80MHz
  • 64KBytes of instruction RAM
  • 96KBytes of data RAM
  • 64KBytes boot ROM
  • It has a Winbond W25Q40BVNIG SPI flash
  • It's a RISC architecture
  • The core is a 106micro Diamond Standard core (LX3) made by Tensilica
  • The ESP8266 chip is made by Espressif
  • Modules bearing this chip are made by various manufacturers

Features

  • 802.11 b/g/n protocol
  • Wi-Fi 2.4 GHz, support WPA/WPA2
  • Super small module size (11.5mm x 11.5mm)
  • Integrated 10-bit ADC
  • Integrated TCP/IP protocol stack (ipv4 only at the moment)
  • Integrated TR switch, balun, LNA, power amplifier and matching network Integrated PLL, regulators, and power management units
  • +20dBm output power in 802.11b mode
  • Supports antenna diversity
  • Deep sleep power <10uA, Power down leakage current < 5uA
  • Integrated low power 32-bit MCU
  • SDIO 2.0, SPI, UART, I2C
  • STBC, 1x1 MIMO, 2x1 MIMO
  • A-MPDU & A-MSDU aggregation & 0.4μs guard interval
  • Wake up and transmit packets in < 2ms
  • Standby power consumption of < 1.0mW (DTIM3)
  • Operating temperature range -40C ~ 125C
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