window-handle-sensor

window handle sensor

get the status of your windows. sensor is between your handle and the window.

TODO

• replace xc6220 footprint with the one from KiCAD
• add a button for wifi reset
• battery connector rotate it: open should be on top

PCBs

this project contains of two pcbs.

window-handle-sensor

This PCB is the sensor. It has three hall sensors placed on a 0.6mm pcb.

library used: https://github.com/hggh/kicad-libraries

BOM of window-handle-sensor pcb

number	name
C1,C2,C3	ceramic cap 0.1 µF SMD 0805
U1,U2,U3	Infineon TLE4913

ESP controller board

This PCB is the controller board with the ESP32-S2. The thickness of this pcb can be 1.0-1.6mm.

BOM of esp32-s2 pcb

number	name
C1	ceramic cap 22µF SMD 0805
C2	ceramic cap 4.7µF SMD 0805
C3	tantalum cap 220µF SMD EIA-7343-31
C4	ceramic cap 100nF SMD 0805
C5	ceramic cap 1µF SMD 0805
U1	XC6220 3.0V SOT-25
U2	ESP32-S2-WROOM
H1	2.54mm 2x3 pin header
J1	JST PH S2B-PH-K
Q1	BC817
Q2	BC807
R1, R14	10k SMD0805
R2, R3, R4	100 SMD0805
R5, R6, R7, R8, R9	10M SMD 0805
R10, R11	1k1 SMD 0805
R12, R13	10k SMD 0805

case

The inlay is placed on the square bolt with 3x magnets.

Magnets: Ø 2 mm, h=1mm (strength: 110g): https://www.supermagnete.de/eng/disc-magnets-neodymium/disc-magnet-2mm-1mm_S-02-01-N