- Single-Core 240 MHz Tensilica Xtensa LX7 Microprocessor
- 4 MB SPI Flash
- 320 KB SRAM
- 128 KB ROM
- 2.4 GHz Wi-Fi – 802.11b/g/n
- Integrated PCB Antenna
- Integrated Temperature Sensor
- 5050 RGB LED (Pins: LEDR, LEDG, LEDB)
- General-Purpose Button (Pin: D13)
- USB Micro-B
- I2C Communication Connector
- 21 × Digital Input/Output Pins
- 9 × Analog Input Pins (13-bit ADC)
- 2 × Analog Output Pins (8-bit DAC)
- 6 × Capacitive Touch Pins
- All Digital Input/Output Pins Support PWM, I2C, SPI, UART, I2S, RMT, TWAI, and External Interrupts
- 3.3 V Operating Voltage
- 3.3 V and 5 V Output Voltage
- 3.3 V – 5.5 V Input Voltage
- Dimensions: 50.00 mm × 20.32 mm × 12.96 mm
- Weight: 6 g (pins soldered)
