Arduino · current
Arduino Nano ESP32
Nano-form-factor Arduino board built on the u-blox NORA-W106 (ESP32-S3) module with Wi-Fi, Bluetooth LE and USB-C.
Evidence: Inferred 2 sources · latest retrieved 2026-10-16 · audited
Key specs
- Logic level
- 3.3 V
- MCU
- ESP32-S3 (in u-blox NORA-W106-10B) Evidence: Documented
- CPU clock max
- 240 MHz Evidence: Documented
- Flash
- 16 MB Evidence: Documented
- SRAM
- 512 KB Evidence: Documented
- Digital IO pins
- 14 Evidence: Documented
Works with
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Works with
ESP-IDF
Evidence: Documented
Board package is based on Espressif ESP32 core using ESP-IDF v5.1.4 (per docs page).
All specifications 9
| Spec | Value | Evidence |
|---|---|---|
| MCU | ESP32-S3 (in u-blox NORA-W106-10B) Xtensa dual-core 32-bit LX7 | Evidence: Documented |
| CPU clock max | 240 MHz | Evidence: Documented |
| SRAM | 512 KB | Evidence: Documented |
| Flash | 16 MB 128 Mbit external flash | Evidence: Documented |
| Operating voltage | 3.3 V | Evidence: Documented |
| Input voltage min | 6 V | Evidence: Documented |
| Input voltage max | 21 V | Evidence: Documented |
| Digital IO pins | 14 21 including analog | Evidence: Documented |
| Wireless | Wi-Fi; Bluetooth LE NORA-W106 module (ESP32-S3) | Evidence: Documented |
Caveats
Pinout/electrical specs verified by audit against the FULL user manual text (ABX00083, modified 15/10/2026, 41 pp.; curl+pdftotext). Manual quirks: JP2 table labels D0/RX as 'Digital pin 1' and D1/TX as 'Digital pin 0' (apparent manual typo/ordering); pin-count spec uses the Features list (14 digital, 21 incl. analog). Manual 11.6: GPIO source up to 40 mA, sink up to 28 mA - never connect higher-current loads directly (source-attributed warning, not recorded as claim). The sources do not state a lifecycle status; 'current' reflects that the manual is actively maintained.
Claims 4
The Nano ESP32 uses the NORA-W106 module, which contains an ESP32-S3 chip and supports Wi-Fi and Bluetooth LE. Evidence: Documented
Source: src-nano-esp32-docs
All digital and analog pins are 3.3 V; higher-voltage devices must not be connected to the pins. Evidence: Documented
Source: src-nano-esp32-manual – “All digital & analog pins on the Nano ESP32 are 3.3 V. Do not connect any higher voltage devices to any of the pins”
The board has a USB-C connector and supports MicroPython and Arduino Cloud. Evidence: Documented
Source: src-nano-esp32-docs
There is no 5 V pin; 5 V is only available via VBUS from USB. Evidence: Documented
Source: src-nano-esp32-manual
Sources 2
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Arduino · manufacturer_docs
https://docs.arduino.cc/hardware/nano-esp32/
Locator: Product page intro + Features tab · Retrieved 2026-10-16
The Arduino Nano ESP32 is the first ever Arduino board based on a ESP32 microcontroller from Espressif, the NORA-W106 module from u-blox. USB-C connector, 16 MB (128 Mbit) of Flash
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Arduino · datasheet
https://docs.arduino.cc/resources/datasheets/ABX00083-datasheet.pdf
Locator: Features p.2; 11.2 Pin Voltage; 11.3 VIN; 14.1 Getting Started - IDE · Retrieved 2026-10-16
Operating voltage 3.3 V; VIN range is 6-21 V; Up to 240 MHz; 512 kB SRAM