Specification

1. Technical Details

Module

• USB-C connection for USB-to-Serial

• User I/O (with carrier board)

  • 3x buttons (1 Reset, 2 General Purpose)

  • 3x LED (3 General Purpose)

• Form factor

  • 38.1mm x 58.42mm

2. PIN MAP

• Pin Description (Counterclockwise from top-left)

No.	Name	Direction	Features / Description
1	P0.08	I/O	General-purpose I/O
2	P0.09	I/O	General-purpose I/O
3	P0.10	I/O	General-purpose I/O
4	P0.11	I/O	General-purpose I/O
5	RESET	Input	System reset
6	GND	—	Ground
7	3.6V(OUT)	Output	3.6V regulated output
8	3.3V(OUT)	Output	3.3V regulated output
9	VSYS(IN)	Input	System supply input (3.0-5.5V)
10	VBUS(IN)	Input	USB 5V power input
11	VEXT(IN)	Input	External regulated power input
12	GND	—	Ground
13	LED0/P0.23	Output	General-purpose LED (active low, red)
14	LED1/P0.24	Output	General-purpose LED (active low, yellow)
15	LED2/P0.25	Output	General-purpose LED (active low, green)
16	BTN0/P0.18	Input	General-purpose Button (internal pull-up)
17	BTN1/P0.19	Input	General-purpose Button (internal pull-up)
18	GND	—	Ground
19	VGPIO(IN)	Input	I/O reference voltage input (Can be connected with 3.3V)
20	P0.17	I/O	General-purpose I/O
21	P0.16	I/O	General-purpose I/O
22	P0.14	I/O	General-purpose I/O
23	P0.12	I/O	General-purpose I/O
24	P0.15	I/O	General-purpose I/O
25	P0.13	I/O	General-purpose I/O
26	P0.31	I/O	General-purpose I/O
27	P0.29	I/O	General-purpose I/O
28	P0.30	I/O	General-purpose I/O
29	P0.28	I/O	General-purpose I/O

• Additional Hardware Interfaces (Counterclockwise from top-left)

Name	Features / Description
RST BTN	Reset push button connected to the nRF9151 reset line
CHARGE	External charging connector linked to VEXT input
TYPE-C	USB Type-C connector for power and data interface
J-LINK	10-pin SWD debug connector for programming and debugging

3. Assembled som + somcb

4. Dimensions

5. Datasheet

한글 버전: https://drive.google.com/file/d/13XYqDB3ReN48WeopKfNsbncMGQag0YWg/view?usp=drive_link

English Version: https://drive.google.com/file/d/11iw8VbpRBgtjDPy9aEyqaq_bs01iA256/view?usp=drive_link