2 layers83.3 × 65.3 mm
SimonShield
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46 parts14kMIT
2 layers90 × 58.5 mm
433MHz for homee
Oxi75/WindowSensor_EV1527Window and Door Sensor for homee, based on EV1527 and ESP32
- Size
- 90 × 58.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 52
- Pads
- 84
- Tracks, vias
- 120, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 May 2025
- Updated
- 18 Aug 2026
Overview
433MHz for homee is an open-source printed circuit board by Oxi75, from the Oxi75/WindowSensor_EV1527 repository on GitHub, published under the MIT licence. It is a 2-layer board of 90 × 58.5 mm with 10 parts on 52 nets, routed with 120 tracks and 0 vias.
It is built around the BC547. Its parts include 3 ICs, 2 resistors, 2 transistors and 1 switch. It belongs with the radio and wireless and sensors and measurement boards and the ESP32, AVR (ATmega, ATtiny) and RISC-V boards of this library.
Main components
1README
README.mdWindowSensor_EV1527
This project enables the integration of affordable 433 MHz window sensors and push buttons into the homee smart home system via vhih.
Hardware
- ESP32 microcontroller
- EV1527 433 MHz receiver module
Features
- Receives signals from standard 433 MHz window sensors and push buttons (EV1527 protocol)
- Forwards sensor states to homee via vhih
- Simple configuration through a web interface
Installation
- Assemble the hardware according to the schematic (ESP32 + EV1527 receiver).
- compile and flash the nano firmware PlatformIO.
- compile and flash the ESP32 firmware
- Connect the device to Wi-Fi and configure it via the web interface.
Directory Structure
src/– Project source codeinclude/– Header filesdata/– Web interface files (e.g., configuration)examples/– Example projectsdoku/– user manualKiCad/– Schematics and PCB layout
Notes
- Further information about integrating with homee and vhih can be found in the documentation and source code.
- License: See LICENSE
Window and door sensor for homee, based on EV1527 and ESP32.
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2 |
| 2 | BC547 | Package_TO_SOT_THT:TO-92_Inline | Q1, Q2 |
| 1 | 4x Level Converter Module (3.3V <-> 5V) | Andreas_footprints:LevelConverter_MH | U2 |
| 1 | Arduino_Nano_v3.x | Module:Arduino_Nano | A1 |
| 1 | ESP32-C3_SUPERMINI_TH | Andreas_footprints:MODULE_ESP32-C3_SUPERMINI_TH | U1 |
| 1 | SysMode | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | SW1 |
| 1 | ~ | Andreas_footprints:rxb14_433MHz_module | IC1 |
The 9 most common of 10 parts.
Questions
How big is the 433MHz for homee PCB?
It measures 90 × 58.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 433MHz for homee use?
10 parts, built around the BC547. 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 433MHz for homee KiCad files?
From the Oxi75/WindowSensor_EV1527 repository on GitHub, at the commit this page was made from: the board is KiCad/433MHz_for_homee/433MHz_for_homee.kicad_pcb and its schematic KiCad/433MHz_for_homee/433MHz_for_homee.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 433MHz for homee design in my own project?
Its repository publishes it under the MIT 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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