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  • 160 MHz Single-Core 32-bit RISC-V Microprocessor
  • 4 MB SPI Flash
  • 400 KB SRAM
  • 384 KB ROM
  • 2.4 GHz Wi-Fi – 802.11b/g/n
  • Bluetooth 5 (LE) and Bluetooth Mesh
  • Integrated PCB Antenna
  • Integrated Temperature Sensor
  • Addressable RGB LED (Pin: D3)
  • General-Purpose Button (Pin: D2)
  • USB Type-C Connector
  • I2C Communication Connector
  • Li-Po Battery Connector
  • Power On/Off Switch
  • 13 x Digital Input/Output Pins
  • 6 x Analog Input Pins (12-bit ADC)
  • All Digital Input/Output Pins Support PWM, I2C, SPI, UART, I2S, TWAI, and IR
  • 11 x Sewable Signal and Power Pads
  • 3.3V Operating Voltage
  • 3.3V Output Voltage
  • 3.3V – 5.5V Input Voltage
  • 50.00mm x 43.30mm x 7.25mm
  • 6 g (pins not installed)