J1 Connector Explanation

Thought for 2 mins 10 sec

flux

Here’s what SW1 (C&K JS202011SCQN) does and how its pins work:

What it is (from the datasheet)

“Switch Function 2020: DPDT” and “N: Non-shorting” (C&K JS Series datasheet).
“Circuit Diagram C: Common Pin (Bottom View)” indicates the center terminals are the commons.

How the 6 pins function

It’s a 2‑position DPDT slide switch: two independent 3‑terminal switches.
For each pole, the middle pin is the common; sliding connects that middle pin to one outer pin or the other (non‑shorting between throws).
Practical grouping:
- Pole A: pins 1–2–3 (2 is common).
- Pole B: pins 4–5–6 (5 is common).
- One position: 2→1 and 5→4; other position: 2→3 and 5→6. Verify orientation on your footprint using the pad‑1 marker and the “Bottom View” diagram in the datasheet.

Typical use in your design

Use one pole to select Grove VCC: tie 3.3 V to one outer, 5 V to the other, and route the Grove VCC to the middle (common).
Use the second pole to manage I2C pull‑ups (select 3.3 V vs 5 V, or disconnect) or to drive an ID/enable signal.

Reference

Datasheet: https://www.ckswitches.com/media/1422/js.pdf

Label nets

I2C pull-ups

Add pull-up resistors

Define net class

Identify pin1 pad

D15

N/A

nRF54L15_RST

3V3

D13

N/A

nRF54L15_SWCLK

D11

D12

D10

SAMD11_SWCLK

SAMD11_SWDIO

BAT-

GND

3V3

N/A

SAMD11_RST

GND

BAT+

nRF54L15_SWD-IO

D14

VCC1

SCL

LRCLK

OUTPUT_SIG

LED

LED_ID

DIN

BAT-

BAT+

BCLK

LED_SIG

LRCLK

LED_ID

3V3

SCL

BAT+

BCLK

SDA

IN1

BAT-

3V3

VCC3

OUTPUT_ID

DIN

LED_SIG

BAT

Reviews

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Project Name

FAKE_PUCK

Description

Seeed Studio XIAO nRF54L15 Board (Pin Header Removed, JST-PH Battery, Pushbutton Added)

Properties

Manufac… Number

101991421

Manufac…er Name

Seeed Studio

Purchase Url

seeedstudio.com/XIAO-nRF54L15-p-6493.html

Designator Prefix

Pricing & Availability

Distributor	Qty 1
Arrow	$1.14–$1.26
Digi-Key	$1.34–$1.52
LCSC	$1.14
Mouser	$1.51
TME	$1.12
Verical	$0.53–$35.97

Controls

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Schematic