Description
The Arduino Nano 33 IoT and Arduino Nano 33 IoT with headers are a miniature sized module containing a Cortex M0+ SAMD21
processor, a Wi-Fi®+Bluetooth® module based on ESP32, a crypto chip which can securely store certificates and pre-shared keys and a
6 axis IMU. The module can either be mounted as a DIP component (when mounting pin headers), or as a SMT component, directly
soldering it via the castellated pads.

Features
SAMD21G18A
Processor
256KB Flash
32KB Flash
Power On Reset (POR) and Brown Out Detection (BOD)
Peripherals
12 channel DMA
12 channel event system
5x 16 bit Timer/Counter
3x 24 bit timer/counter with extended functions
32 bit RTC
Watchdog Time
CRC-32 generator
Full speed Host/Device USB with 8 end points
6x SERCOM (USART, I2C, SPI, LIN)
Two channel I2S
12 bit 350ksps ADC (up to 16 bit with oversampling)
10 bit 350ksps DAC
External Interrupt Controller (up to 16 lines)