J1 Connector Explanation

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BOM
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Schematic
SW1

Using BOM Tool.

Looking for "JS202011SCQN circuit diagram" in js.pdf

Looking for "terminal numbers" in js.pdf

Looking for "contact arrangement DPDT ON-ON" in js.pdf

Looking for "pin function common terminals center" in js.pdf

Using Schematic Tool.

Using Knowledge Base Tool.

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
Label nets
I2C pull-ups
Add pull-up resistors
Define net class
Identify pin1 pad
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D5
D15
5V
N/A
D4
nRF54L15_RST
3V3
D13
N/A
D1
nRF54L15_SWCLK
D6
D11
D12
D10
SAMD11_SWCLK
D3
SAMD11_SWDIO
BAT-
D2
GND
D8
D9
N2
D0
3V3
N/A
SAMD11_RST
N1
GND
D7
BAT+
nRF54L15_SWD-IO
D14
VCC1
SCL
LRCLK
OUTPUT_SIG
LED_ID
DIN
BAT-
BAT+
BCLK
LED_SIG
LRCLK
5V
LED_ID
3V3
SCL
BAT+
BCLK
SDA
SDA
BAT-
3V3
VCC3
OUTPUT_ID
DIN
LED_SIG
BAT
LED
IN1
H1
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Seeed Studio XIAO nRF54L15 Board (Pin Header Removed, JST-PH Battery, Pushbutton Added)

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