- Supported by the Arduino IDE
- Wi-Fi and Over the Air Program Upgrade/Download
- thingSoC Compliant Module
- Mikrobus Compatible Module
- ESP8266 Wi-Fi Module 802.11 b/g/n
- RGB Color LED for status
- PCA8575 I/O Expander for 16 additional GPIO lines
- Analog Multiplexor and 3.3 Volt Analog Input Conditioning
- Integrated 3.7 Volt Li-Po Battery Input and Charger
- Integrated USB programming Interface, supporting the NodeMCU programming protocol
- High Speed (1mB) USB Upload Capability
- USB 2.1 BCD-Battery Charger Detect Protocol Compatibility
- Arduino IDE Board Manager Support
- +19.5dBm output power in 802.11b mode
- Wi-Fi Direct (P2P), soft-AP
- Integrated TCP/IP protocol stack
- Internal Antenna and U.FL external Antenna Support