- 32-bit RISC CPU: Tensilica Xtensa LX106 running at 80 MHz
- 64 KiB of instruction RAM, 96 KiB of data RAM
- External QSPI Flash - 512 KiB to 16 MiB
- IEEE 802.11 b/g/n Wi-Fi
- Integrated TR switch, balun, LNA, power amplifier and matching network
- Integrated TCP/IP protocol stack
- WEP or WPA/WPA2 authentication, or open networks
- Wi-Fi Direct (P2P), soft-AP
- +19.5dBm output power in 802.11b mode
- STBC, 1x1 MIMO, 2x1 MIMO
- 16 GPIO pins
- SDIO, SPI, I2C, UART
- 1x 10-bit ADC
- Power
- Integrated PLLs, regulators, DCXO and power management units
- Wake up and transmit packets in < 2ms
- Standby power consumption of < 1.0mW (DTIM3)
- ESP8266 ESP12-F
- User Button
- RGB LED
- Photoresistor
- CH340G USB-serial converter
- Flash and Reset buttons