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Arduino Nicla Sense ME
Arduino · Nicla
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Showing 25 of 25 pins
Simplified diagram, grouped by function — not to physical scale. Pin data is source-backed; verify against the linked documentation.
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Mapped source · Nicla Sense ME full pinout - Arduino and MCU aliases (Arduino, ABX00050)Official- J1 and J2 are transcribed from the current Arduino ABX00050 connector tables; aliases come from Arduino's full-pinout drawing.
- All J1/J2 signals except the debug fins are referenced to VDDIO_EXT, which is software-selectable between 1.8 V and 3.3 V.
- The eight 1.27 mm debug fins expose separate SWD interfaces for the BHI260, ANNA-B112/nRF52832, and SAMD11 USB bridge.
- J3/J4 battery and J5 ESLOV connectors are outside this represented expansion pinmap; use the current datasheet before wiring them.
All 25 pins
| # | Signal | Role | Net | Also / notes |
|---|---|---|---|---|
| J1 Nicla header A | ||||
| 1 | GPIO | D5 / P0.24 / PWM | ||
| 2 | Reserved | No connection. | ||
| 3 | SPI | SPI | D6 / P0.29 / PWM | |
| 4 | SPI | SPI | D8 / P0.27 / MOSI / PWM | |
| 5 | SPI | SPI | D7 / P0.28 / MISO / PWM | |
| 6 | SPI | SPI | D9 / P0.11 / PWM | |
| 7 | ADC | A1 / D11 / P0.30 / PWM · ADC input; fixed 1.8 V logic domain rather than VDDIO_EXT. | ||
| 8 | ADC | A0 / D10 / P0.02 / PWM · ADC input; fixed 1.8 V logic domain rather than VDDIO_EXT. | ||
| J2 Nicla header B | ||||
| 1 | I2C | I2C | D4 / SDA1 / P0.22 / PWM | |
| 2 | I2C | I2C | D3 / SCL1 / P0.23 / PWM | |
| 3 | UART | UART | D2 / P0.20 / PWM | |
| 4 | UART | UART | D1 / P0.09 / PWM | |
| 5 | GPIO | D0 / P0.10 / PWM | ||
| 6 | Ground | GND | ||
| 7 | Power | VDDIO_EXT | Logic-level reference; internally software-selectable from 1.8 V to 3.3 V, or externally supplied only after disabling the internal rail. | |
| 8 | Reserved | No connection. | ||
| 9 | Power | VIN | 3.5-5.5 V input. | |
| J2 1.27 mm debug fins | ||||
| 1 | Debug | BHI_SWD | BHI260 SWD data; 1.8 V only. | |
| 2 | Debug | BHI_SWD | BHI260 SWD clock; 1.8 V only. | |
| 3 | Debug | ANNA_SWD | ANNA-B112/nRF52832 SWD data; 1.8 V only. | |
| 4 | Debug | ANNA_SWD | ANNA-B112/nRF52832 SWD clock; 1.8 V only. | |
| 5 | System | |||
| 6 | Debug | SAMD11_SWD | SAMD11 USB-bridge SWD data; 3.3 V. | |
| 7 | Power | +1V8 | 1.8 V debug reference rail. | |
| 8 | Debug | SAMD11_SWD | SAMD11 USB-bridge SWD clock; 3.3 V. | |