arduino › microcontroller board
arduino Arduino Nano 33 IoT
3.3V GPIO — do NOT feed 5V signals from a UNO directly. Has an onboard u-blox NINA-W102 for WiFi/BLE so you can ship a connected project on a single PCB.
Specifications
- mcu chip
- atsamd21
- clock mhz
- 48
- flash kb
- 256
- sram kb
- 32
- wifi
- yes
- wifi band
- 2_4ghz
- bluetooth
- ble
- usb
- micro_b
- gpio count
- 14
- analog inputs
- 8
- pwm pins
- 11
- i2c
- yes
- spi
- yes
- uart count
- 1
- operating voltage v
- 3.3
- input voltage range v
- 5-21
- power pins
- 3v3, vin
- firmware compat
- arduino_ide, platformio
- ai accelerator
- none
- form factor
- nano
Sources
- SparkFun open product catalog · ingest 2026-05-06
- Adafruit open product catalog · ingest 2026-05-06
- Arduino official product database · ingest 2026-05-06