Specifications:
 - Dual Arm Cortex-M33 or dual RISC-V Hazard3 processors @150MHz
 - 520 KB on-chip SRAM; 4 MB on-board QSPI flash
 - 2.4GHz 802.11n wireless LAN and Bluetooth 5.2
 - 26 multi-purpose GPIO pins, including 4 that can be used for ADC
 - 2x UART, 2x SPI, 2x I2C, 24x PWM
 - 1x USB 1.1 controller and PHY, with host and device support
 - power supply 1.8-5.5 VDC
 - dimensions: 21x51 mm 
Datasheet