ESP-WROOM-02 is a low-power 32-bit MCU Wi-Fi module based on ESP8266 chip, embedded with TCP/IP network stacks, 10-bit ADC, and HSPI/UART/PWM/I2C/I2S interfaces. ESP-WROOM-S2 uses a 2 MB SPI flash connected to HSPI, working as the SDIO/SPI slave with the SPI speed of up to 8 Mbps.
ESP8266 Module can operate in the low power connectivity modes; for instance, if it operates in DTIM10, it only consumes 1.2mW while maintaining a Wi-Fi connection. The module also integrates an SPI flash of 16 Mbits used for storing user programs, data and firmware.
Certificates and Compliances:
Wi-Fi Alliance, SRRC, FCC, CE, TELEC, IC & KCC Certified
RoHS, Halogen Free, REACH & CFSI Compliant
HTOL, ESD-HM, MSL, μHAST, HTSL
Output Power: +22dBm peak power in FCC certification
Small Form Factor
ESP8266 Module can be easily integrated into space-limited devices due to its small size of only 18mm x 20mm (ESP-WROOM-02) / 16 mm x 23 mm (ESP-WROOM-S2).