ESP-WROOM-02 is a 32-bit low power micro-controller (MCU) Wi-Fi Module that integrates TCP/IP network stacks, and includes 10-bit ADC with HSPI, SDIO, UART, PWM, I2C, and I2S interfaces. The module is highly integrated. It consumes extremely low power while providing wireless internet connection for embedded devices. It can be easily integrated into resource-limited devices due to its small form factor of only 18mm x 20mm.
In addition to the ESP8266EX chipset, the module also integrates an SPI flash with 32Mbits capacity, along with a SOP8-150mil package. The SPI flash is incredibly useful for storin user programs and firmware.
IEEE 802.11b/g/n at 2.4 GHz
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
Various interfaces available, including SDIO, HSPI, UART, I2C, I2S, IR, PWM, GPIO, etc.
Supports antenna diversity
Deep sleep power lt;10uA, Power down leakage current lt; 5uA
Wake up and transmit packets in lt; 2ms
Standby power consumption of lt; 1.0mW (DTIM3)
+20dBm output power in 802.11b mode
Operating temperature range -40C ~ 125C
FCC, CE and TELEC certified
Support Station, softAP and STA+softAP operation modes
Support security protocols WPA/WPA2
Support Transmission control protocol (TCP) and User Datagram Protocol (UDP)
Support Wi-Fi Protected Setup (WPS) for easy setup and configuration
Support mesh networking
Support Smart Link Function for both Android and iOS devices
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