2 layers56 × 65 mm
SeaTalk1
dotnet/iot
This repo includes .NET Core implementations for various IoT boards, chips, displays and PCBs.
24 parts2.4kMIT
Home automation and IoT
2,054 boards2,054 open-source home automation and IoT boards from 1,366 GitHub repositories, each designed in KiCad and read from its files: its size, layers, parts, README and project.
They have a median size of 74 × 50 mm and most often 2 copper layers (84 %). The parts their repositories use most are the AMS1117-3.3, BME280, USBLC6-2SC6, ESP32-WROOM-32 and BC817.
Parts they use most
- 4 layers78 × 59 mm
- 2 layers60 × 40 mm
- 2 layers34 × 109.9 mm
- 2 layers20.3 × 24.5 mm
Examples
Luos-io/luos_engine
Open-source and real-time orchestrator for cyber-physical-systems, to easily design, test and deploy embedded applications and digital twins.
46 parts546MIT - 2 layers33.7 × 97.8 mm
HAN ESP TSS721
UtilitechAS/amsreader-firmware
ESP8266 and ESP32 compatible firmware to read, interpret and publish data to MQTT from smart electrical meters, both DLMS and DSMR is supported
29 parts470 - 4 layers28 × 80 mm
ESP32-PoE Rev M
OLIMEX/ESP32-POE
ESP32 IoT development board with 100Mb Ethernet and 802.3 Power Over Ethernet (POE)
142 parts415Apache-2.0 - 4 layers22.9 × 50.8 mm
Lg hvac esp32
JanM321/esphome-lg-controller
Wired controller for LG HVAC units using ESPHome and ESP32
20 parts2920BSD - 4 layers50 × 87 mm
EnergyMe Home
jibrilsharafi/EnergyMe-Home
Smart energy meter capable of monitoring up to 16 channels. Supports MQTT, REST API, Modbus TCP, InfluxDB, AWS IoT Core. Friendly UI and fully open source (PCB, schematics, components, source code)
87 parts288GPL-3.0 - 2 layers100.8 × 30.2 mm
Esp32 loraprs c3
sh123/esp32_loraprs
LoRa ESP32 KISS Bluetooth modem (for APRSDroid or aprs.fi iOS) + APRS-IS RX/TX iGate over WiFi + Digipeater + DV (with Codec2 Walkie-Talkie)
29 parts281GPL-3.0 - 4 layers37.1 × 37.2 mm
Doorman
AzonInc/Doorman
ESP32-S3 based Intercom Gateway (TCS / Koch / Niko / Scantron / Analogue Systems)
44 parts252GPL-3.0 - 4 layers82.5 × 81.5 mm
- 2 layers129.5 × 50.8 mm
- 2 layers50 × 25 mm
Mbus master
roarfred/AmsToMqttBridge
Minimalistic system to read AMS/HAN data from electrical meter
50 parts223 - 2 layers50 × 38 mm
- 2 layers93 × 40.7 mm
Ecp interface bjt
Dilbert66/esphome-vistaECP
This is an implementation of an ESPHOME custom component and ESP Library to interface directly to a Safewatch/Honeywell/Ademco Vista 15/20 alarm system using the ECP interface and very inexpensive ESP8266/ESP32 modules .
28 parts194LGPL-2.1 - 2 layers39 × 40 mm
Mdb ai bridge esp32s3
nodestark/mdb-esp32-cashless
ESP32-based MDB cashless device for vending machines, supporting EVA DTS DEX/DDCMP telemetry and payments over the MDB protocol via Bluetooth and MQTT
92 parts190MIT - 2 layers34.1 × 33.6 mm
EPaperBreakout
FeatureNAB/air-sensor
Smart Air Quality Sensor built using ESP32, SEN66 and ESPHome
31 parts171 - 6 layers54.6 × 57.1 mm
CM5 MINIMA 2
piecol/CM5_MINIMA_REV2
Compact, feature-filled CM5 carrier board
102 parts170CERN-OHL-S-2.0 - 2 layers38.4 × 65.5 mm
- 2 layers56.4 × 78.4 mm
- 2 layers36 × 58 mm
Ups adaptor
aronreid/ups-to-esp32
Put a USB-only UPS on the network: an ESP32-S3 board and firmware that serves NUT on TCP 3493, with a web UI. No host computer, no Raspberry Pi.
38 parts130GPL-3.0 - 2 layers35 × 45 mm
Aether
EnriqueNeyra/aether
All-in-one home air quality monitor measuring Temp, Humidity, CO2, VOCs, Particulate Matter, and NOx. Powered by ESP32-C3 running esphome, and built with Home Assistant integration
57 parts129 - 4 layers120 × 120 mm
Yellow
NabuCasa/yellow
Home Assistant Yellow - hardware for Home Assistant which grows with your needs.
322 parts116
Questions
Where can I find open-source home automation and IoT boards?
This page lists 2,054, from 1,366 repositories on GitHub, each read from its KiCad files with links to the original repository; PCBKit opens any of them in the browser.
What parts are most common on home automation and IoT boards?
The AMS1117-3.3, BME280, USBLC6-2SC6, ESP32-WROOM-32 and BC817 appear in the most repositories here; each links to its symbol, footprint and the boards that use it.
How big is a typical home automation and IoT board?
The median is 74 × 50 mm, most often with 2 copper layers (84 %).