32-bit RISC-V MCU & 2.4 GHz Wi-Fi & Bluetooth 5 (LE) 

• 32-bit RISC-V single-core processor that operates at up to 120 MHz
• State-of-the-art power and RF performance
• 576 KB ROM, 272 KB SRAM (16 KB for cache) on the chip
• 14 programmable GPIOs: SPI, UART, I2C, LED PWM controller, General DMA controller (GDMA), SAR ADC, Temperature sensor