2 layers20.5 × 24.8 mm
2 layers29.4 × 23 mm
A low-power smart door sensor using a Seeed Studio XIAO ESP32-S3, reed switch, and CR2032 battery[cite: 1, 2].
- Size
- 29.4 × 23 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 36
- Pads
- 50
- Tracks, vias
- 25, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 4 Oct 2026
- Updated
- 4 Oct 2026
Overview
Door is an open-source printed circuit board by Sebimala, from the Sebimala/door-detector repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 29.4 × 23 mm with 8 parts on 36 nets, routed with 25 tracks and 0 vias.
Its parts include 2 capacitors and 1 switch. It belongs with the ESP32 boards of this library.
README
README.mdESP32-S3 Door Sensor
A low-power smart door sensor using a Seeed Studio XIAO ESP32-S3, reed switch, and CR2032 battery[cite: 1, 2].
🛠️ Components
- MCU: Seeed Studio XIAO ESP32-S3[cite: 1, 2]
- Sensor: Reed Switch (
SW1) on pinD0[cite: 1, 2] - Power: CR2032 Battery (
BT1)[cite: 1, 2] - Capacitors:
C1(filtering) andC2(decoupling)[cite: 1, 2] - Test Points:
TP1(Signal),TP2(BAT_VIN),TP3(GND)[cite: 1, 2]
🚀 Quick Setup
- Open
Door.kicad_schin KiCad[cite: 3]. - Run ERC to verify 0 errors[cite: 5].
- Press
F8to update the PCB layout[cite: 8].
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | TestPoint | TestPoint:TestPoint_Pad_D2.0mm | TP1, TP2, TP3 |
| 1 | Battery_Cell | Battery:BatteryHolder_Keystone_1057_1x2032 | BT1 |
| 1 | C | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | C_Polarized | Capacitor_SMD:C_Elec_6.3x5.4 | C2 |
| 1 | Module_XIAO-ESP32S3 | PCM_fab:SeeedStudio_XIAO_ESP32S3 | M1 |
| 1 | SW_Reed | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | SW1 |
Questions
How big is the Door PCB?
It measures 29.4 × 23 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Door use?
8 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Door KiCad files?
From the Sebimala/door-detector repository on GitHub, at the commit this page was made from: the board is Door/Door.kicad_pcb and its schematic Door/Door.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Door design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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