2 layers82.5 × 22.4 mm Window Sensor, the printed circuit board in 3D

Window Sensor

Here you will find all the files you need to build an ESP8266-based window sensor whose battery will last for several years. Have a look at my video on Youtube: https://youtu.be/vxbuO1zWo3w

Open in PCBKit

Size: 82.5 × 22.4 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 19
Nets: 26
Pads: 74
Tracks, vias: 238, 25
Routed: Yes
KiCad: KiCad 5 (file 20171130)
Created: 10 Oct 2021
Updated: 11 Jan 2022

Overview

Window Sensor is an open-source printed circuit board by MakerMeik, from the MakerMeik/Window-Sensor repository on GitHub. It is a 2-layer board of 82.5 × 22.4 mm with 19 parts on 26 nets, routed with 238 tracks and 25 vias.

It is built around the ESP-12E, 74HC86D and TP4056. Its parts include 1 IC and 1 connector. It belongs with the sensors and measurement boards and the ESP8266 boards of this library.

Main components

README

README.md

Window-Sensor

Project-Idea by Michael Dworkin: https://esp8266-server.de/Reedkontakt.html

screenshot

Here you will find all the files you need to build an ESP8266-based window sensor whose battery will last for several years.
Have a look at my video on Youtube: https://youtu.be/vxbuO1zWo3w

Here you can find the code (ArduinoIDE/PlatformIO) for the microcontroller, the Gerber files for PCB ordering, the circuit simulation for CircuitJS and additional information.

Required Components

1x ESP-12F
1x 1000 uF Electrolytic Capacitor
2x 100 nF Capacitor
4x 10k Resistor (SMD 0805)
1x 1M Resistor (SMD 0805)
2x Switch Buttons (SMD 0805)
1x HT7333 (SMD)
1x Pin Header
1x Reed Switch NO (normally open)
1x 74HC86 (THT)
1x TP4056
1x Li-Ion 18650
1x Magnet
1x 3D-printed case (https://www.thingiverse.com/thing:5019573)

Links

KiCAD:
https://www.kicad.org/

CircuitJS:
http://www.falstad.com/circuit/

Parts

Qty	Value	Footprint	References
4	10k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	10k-1, 10k-2, 10k-3, 10k-4
2	100nF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	100nF-1, 100nF-2
2	SW_Push	Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK	FLASH1, RESET1
2	TestPoint_THTPad_1.5x1.5mm_Drill0.7mm	TestPoint:TestPoint_THTPad_1.5x1.5mm_Drill0.7mm	3V7, GND
1	1000uF	Capacitor_SMD:CP_Elec_10x12.6	1000uF-1
1	1M	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	1M-1
1	74HC86	Package_DIP:DIP-14_W7.62mm	U3
1	Conn_01x05_Male	Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical	J1
1	ESP-12E	RF_Module:ESP-12E	ESP-12E1
1	HT75xx-1-SOT89	Package_TO_SOT_SMD:SOT-89-3	HT7333
1	LOGO	_sala:MakerMeik-logo	G***
1	SW_Reed	Button_Switch_SMD:SW_SPST_REED_CT10-XXXX-G4	REED1
1	TP4056	_sala:TP4056	TP4056

Questions

How big is the Window Sensor PCB?

It measures 82.5 × 22.4 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Window Sensor use?

19 parts, built around the ESP-12E, 74HC86D and TP4056. 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 Window Sensor KiCad files?

From the MakerMeik/Window-Sensor repository on GitHub, at the commit this page was made from: the board is KiCad/window-sensor.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Window Sensor design in my own project?

Its repository states no licence, so its author keeps all rights: ask MakerMeik before reusing the design.

Category and platform

Sensors and measurement ESP8266

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/makermeik-window-sensor" title="Window Sensor in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/makermeik-window-sensor.jpg" alt="Window Sensor" width="1200" height="900">

A picture that opens the board, for a README

[![Window Sensor](https://pcbkit.io/embed/boards/makermeik-window-sensor.jpg?size=s)](https://pcbkit.io/boards/makermeik-window-sensor)

Source

Repository: MakerMeik/Window-Sensor
Board file: KiCad/window-sensor.kicad_pcb
Commit: 841fc4f
Licence: Not stated

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