Microcontroller: nRF52840 (datasheet) Radio module: u-blox NINA-W102 Secure Element ?: ATECC608A Operating Voltage: 3.3V Input Voltage (limit) : 21V DC Current per I/O Pin: 7 mA Clock Speed: 48MHz
A 32-bit core, that allows operations on 4 bytes wide data within a single CPU clock. CPU clock at 84Mhz 96KBytes of SRAM 512KBytes of flash memory for code A DMA controller, that can relieve the CPU from doing memory intensive tasks.
ATSAMD11 ( Arm Cortex-M0+ @48 Mhz) microcontroller MP6522 motor driver Onboard 9-axis accelerometer, gyroscope, and magnetometer A battery charger for single-cell Li-ion batteries 2 ports for quadrature encoder counting A series of 3-pin male headers Easily connects actuators and sensors