4 layers72.9 × 62.9 mm
IEQ Monitor
lalithk06/PCB_Designs
This repository contains various PCB design projects made using KiCad
88 parts
2 layers55 × 32 mm
HA Sensor Node
AlexD717/HA-Sensor-Node1Sensor node featuring a temperature, humidity, and mmWave sensor
- Size
- 55 × 32 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 14
- Pads
- 61
- Tracks, vias
- 96, 8
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 13 Apr 2026
- Updated
- 21 Apr 2026
Overview
HA Sensor Node is an open-source printed circuit board by AlexD717, from the AlexD717/HA-Sensor-Node repository on GitHub. It is a 2-layer board of 55 × 32 mm with 15 parts on 14 nets, routed with 96 tracks and 8 vias.
It is built around the HDC2010YPAR, OPT3001IDNPRQ1 and HLK-LD2410C. Its parts include 4 resistors, 4 ICs and 2 capacitors. It belongs with the sensors and measurement and home automation and IoT boards and the ESP32 and RISC-V boards of this library.
Main components
3
HDC2010YPAR
DSBGA-6-40℃~+85℃ 0%RH~100%RH 1.62V~3.6V 11bit 550nA I2C ±0.2℃ ±2%RH DSBGA-6 Temperature and Humidity Sensor ROHSTexas InstrumentsTemperature And Humidity Sensor
OPT3001IDNPRQ1
WSON-6-EP(2x2)-40℃~+85℃ 0.65mm 1.6V~3.6V 2mm 2mm 83klx I2C Light Intensity WSON-6-EP(2x2) Ambient Light Sensors ROHSTexas InstrumentsAmbient Light SensorsHLK-LD2410C
插件,16X22mm插件,16x22mm New Arrivals ROHSHI-LINKUncategorised
README
README.mdHA-Sensor-Node
Overview
Description
This is a compact sensor node featuring useful sensors to integrate with Home Assistant
Why I made this project
I made this project because I wanted to try and make an integrated PCB with multiple sensors, and use the bare I2C modules. A Home Assistant sensor node is something that would benefit from being compact, using a custom PCB, and is also something I would use in my life for more advanced automations.
Features
- Custom PCB for compact wiring
- Temperature/Humidity Sensor (HDC2010)
- Light Sensor (OPT3001)
- Compact size (63mm x 36mm x 20 mm)
CAD Pictures
Assembly Animation
https://github.com/user-attachments/assets/c794dc4b-a0a1-4972-ad8c-0202cbf2617a
PCB
Drop the ESP32 and LD2410C sensor into the PCB and solder the connection.
Schematic
PCB
BOM
See the material list here: BOM
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4 |
| 3 | MountingHole_3.2mm_M3 | MountingHole:MountingHole_3.2mm_M3 | M3, M3, M3 |
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 1 | HDC2010YPAR | XIAO:BGA6C100X50P2X3_HDC2010YPAR | U2 |
| 1 | HLK-LD2410C | My Lib:MODULE_HLK-LD2410C | U4 |
| 1 | LOGO | LOGO | G*** |
| 1 | OPT3001IDNPRQ1 | My Lib:SON65P200X200X65-7N | U3 |
| 1 | XIAO-ESP32-C6-DIP | My Lib:XIAO-ESP32-C6-DIP | U1 |
The 14 most common of 15 parts.
Questions
How big is the HA Sensor Node PCB?
It measures 55 × 32 mm and has 2 copper layers, 1.6 mm thick.
What parts does the HA Sensor Node use?
15 parts, built around the HDC2010YPAR, OPT3001IDNPRQ1 and HLK-LD2410C. 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 HA Sensor Node KiCad files?
From the AlexD717/HA-Sensor-Node repository on GitHub, at the commit this page was made from: the board is PCB/HA-Sensor-Node/HA-Sensor-Node.kicad_pcb and its schematic PCB/HA-Sensor-Node/HA-Sensor-Node.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the HA Sensor Node design in my own project?
Its repository states no licence, so its author keeps all rights: ask AlexD717 before reusing the design.
Similar boards
- 2 layers89 × 44 mm
- 4 layers42.9 × 16 mm
- 2 layers133.3 × 39 mm
- 2 layers76.5 × 78 mm
EmonTH
openenergymonitor/emonTH3
Hardware for the emonTH3 temperature, humidity, and pulse sensing node
56 partsCC-BY-SA-4.0 - 8 layers50 × 50 mm
- 2 layers46 × 21 mm
Usb
efogdev/nrf54l15-module
nRF54L15 module with full IO set and external DC-DC regulator for maximum efficiency
28 parts12 - 2 layers12.5 × 11 mm
Ambient
PolygonHJ/xihe
Xihe is a self-sustaining, ultra-low-power sensing platform designed for long-lifetime deployments with zero maintenance.
9 parts2