ESP8266 Serial Wifi module ESP-12E ESP8266 NodeMCU
ESP-12E WiFi module is developed by the Ai-thinker Team. core
processor ESP8266 in smaller sizes of the module encapsulates
Tensilica L106 integrates industry-leading ultra-low power 32-bit
MCU micro, with the 16-bit short mode, Clock speed support 80 MHz,
160 MHz, supports the RTOS, integrated Wi-Fi MAC/BB/RF/PA/LNA,
on-board antenna. The module supports standard IEEE802.11 b/g/n
agreement, a complete TCP/IP protocol stack. Users can use the add
modules to an existing device networking, or build a separate
network controller. ESP8266 is high integration wireless SOCs,
designed for space and power-constrained mobile platform designers.
It provides unsurpassed ability to embed Wi-Fi capabilities within
other systems or to function as a standalone application, with the
lowest cost, and minimal space requirement.

Features
• 802.11 b/g/n • Integrated low power 32-bit MCU • Integrated
10-bit ADC • Integrated TCP/IP protocol stack • Integrated TR
switch, balun, LNA, power amplifier and matching network •
Integrated PLL, regulators, and power management units • Supports
antenna diversity • Wi-Fi 2.4 GHz, support WPA/WPA2 • Support
STA/AP/STA+AP operation modes • Support Smart Link Function for
both Android and iOS devices • Support Smart Link Function for both
Android and iOS devices • SDIO 2.0, (H) SPI, UART, I2C, I2S, IRDA,
PWM, GPIO • STBC, 1x1 MIMO, 2x1 MIMO • A-MPDU & A-MSDU aggregation
and 0.4s guard interval
• Deep sleep power <10uA, Power down leakage current < 5uA •
Wake up and transmit packets in < 2ms • Standby power
consumption of < 1.0mW (DTIM3) • +20dBm output power in 802.11b
mode • Operating temperature range -40C ~ 125C