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Welcome to the esp8266 wiki!

Current status

• A working gcc compiler
• A closed/NDA SDK (work is being done getting this into the open)

What is this ESP8266

• Its a wireless SoC
• It has GPIO, I2C, ADC, SPI, PWM and some more
• Its 80Mhz fast
• Its based on the RISC architecture
• The core is made by Tensilica
• The chip is made by Espressif

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
• 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