Arduino Nano 33 IoT Pinout and Specification
Arduino Nano 33 IoT is a 32-bit microcontroller board based on SAMD21 processor operating at 48 MHz. It has 256 Kbytes of Flash and 32 Kbytes of SRAM.
Arduino Nano 33 IoT Pinout includes 14 digital I/O pins, 8 analog inputs and 11 PWMs. It features a UART, TWI (I2C), I2S, SPI, 10-bit DAC and 12-bit ADC. Also using the SERCOM feature of the SAMD21 processor, any of its internal serial modules can be configured as an I2C, UART or SPI.
As shown in the Arduino Nano 33 IoT Pinout, the board incorporates the Nina W102 module. This means from the connectivity point of view, it provides WiFi 802.11 b/g/n as well as Bluetooth LE.
It also has a 6 Axis IMU sensor chip as well as a dedicated cryptographic co-processor.
Platform
| Manufacturer | Arduino |
| Processor | SAMD21 |
| Processor Family | Arm Cortex-M0+ |
| Clock Speed | 48 Mhz |
| Flash Memory | 256 KB |
| SRAM | 32 KB |
I/O
| Digital I/O | 14 |
| Analog Input | 8 |
| PWM | 11 |
| ADC Resolution | 4096 |
| DAC Resolution | 1024 |
| Interrupts | 9 |
Power
| Input Voltage | 5-18 V |
| I/O Voltage | 3.3 V |
| I/O Current | 7 mA |
Communication Protocols
| I2C | 1x Up to 6 via SERCOM |
| I2S | 2x |
| SERCOM | 6x Configurable as USART, I2C, SPI, LIN |
| SPI | 1x Up to 6 via SERCOM |
| USART | 1x Up to 6 via SERCOM |
Connectivity
| USB Micro B | 1x host mode supported |
| WiFi | 802.11b 802.11g 802.11n Provided by Nina W102 module |
| Bluetooth | 4.2 Provided by Nina W102 module |
Sensors
| 6 Axis IMU | Provided by LSM6DSL |
Peripherals
| RTC | 1x 32 bit |
| Timer | 5x 16 bit 3x 24 bit |
| Watchdog Timer | 1 |
| Cryptography | CryptoAuthenticaion Provided by ATECC608A chip |
Dimensions
| Width | 18 mm |
| Length | 45 mm |
| Weight | 5 g |
