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  • 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)