Online Resources; Board Recovery; Connector Pinouts; J1 Nicla Header A - Arduino Nicla Sense ME Product Reference Manual

5.7 Online Resources

Now that you have gone through the basics of what you can do with the board you can explore the endless
possibilities it provides by checking exciting projects on ProjectHub [5], the Arduino® Library Reference [6] and the
online store [7] where you will be able to complement your board with sensors, actuators and more.

5.8 Board Recovery

All Arduino® boards have a built-in bootloader that allows flashing the board via USB. In case a sketch locks up the
processor and the board is not reachable anymore via USB, it is possible to enter bootloader mode by double-
tapping the reset button right after the power-up.

6 Connector Pinouts

Note: All the pins on J1 and J2 (excluding fins) are referenced to the V
internally or supplied externally.

6.1 J1 Nicla Header A

Pin Function
1 LPIO0_EXT
2 NC
3 CS
4 COPI
5 CIPO
6 SCLK
7 ADC2
8 ADC1

6.2 J2 Nicla Header B

Pin Function
1 SDA
2 SCL
3 LPIO1_EXT
4 LPIO2_EXT
5 LPIO3_EXT
6 GND
7 VDDIO_EXT
8 N/C
9 VIN
Note: For further information on how Low Power I/Os work, check Nicla Family Form Factor documentation.
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Type Description
Digital Low Power IO Pin 0
N/A N/A
Digital SPI Cable Select
Digital SPI Controller Out / Peripheral In
Digital SPI Controller In / Peripheral Out
Digital SPI Clock
Analog Analog Input 2
Analog Analog Input 1
Type
Digital
Digital
Digital
Digital
Digital
Power
Digital
N/A
Digital
Arduino® Nicla Sense ME
Arduino® Nicla Sense ME
voltage which can be generated
DDIO_EXT
Description
I2C Data Line
I2C Clock
Low Power IO Pin 1
Low Power IO Pin 2
Low Power IO Pin 3
Ground
Logic Level Reference
N/A
Input Voltage
Modified: 13/08/2024