2 layers60 × 40 mm
MQTT
167 boardsKiCad boards from 94 GitHub repositories tagged “mqtt”, the most starred first; open any of them in PCBKit.
- 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 - 2 layers230.5 × 60 mm
- 2 layers50.9 × 22.9 mm
FeatherWing nRF24L01 Adapter
rfquack/RFQuack
RFQuack: the versatile RF-analysis tool that quacks!
14 parts348GPL-2.0 - 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 - 4 layers82.5 × 81.5 mm
- 2 layers50 × 25 mm
Mbus master
roarfred/AmsToMqttBridge
Minimalistic system to read AMS/HAN data from electrical meter
50 parts223 - 2 layers25.4 × 34.3 mm
WirelessPalaControl
Domochip/WPalaControl
D1Mini to replace Palazzetti, Jotul, TurboFonte, Godin stove ConnectionBox
18 parts76 - 2 layers45 × 65 mm
AquaMQTT
tspopp/AquaMQTT
Monitor and control your Groupe Atlantic (Explorer, Calypso, Aquawin,...) heat pump using MQTT
16 parts71Apache-2.0 - 2 layers25.4 × 45.7 mm
- 2 layers47.2 × 55.5 mm
Tinta l2
c0de111/tinta
Battery-powered e-paper sign: room signage, sensor graphs, home automation, or anything over Wi-Fi. Wakes by real-time clock, NFC tap, or button. Raspberry Pi Pico W firmware, custom PCB, and 3D-printed case included.
60 parts39Apache-2.0 - 2 layers49.9 × 34 mm
Esp12f si7021-v1.2
amadeuspzs/esp8266-temperature-humidity
Low power MQTT temperature and humidity sensor
25 parts24 - 2 layers61.3 × 89.6 mm
QuakeGuard PCB
GiZano/QuakeGuard
Distributed Earthquake Early Warning (EEW) system built on low-cost ESP32-C3 IoT sensors with Zero-Trust security, multi-node epicenter triangulation, and on-premise AI emergency reports.
17 parts24AGPL-3.0 - 2 layers25.4 × 26 mm
WirelessTeleInfo
Domochip/WTeleInfo
Un D1 Mini et quelques composants pour envoyer votre Téléinfo (Compteur EDF) sur votre Domotique
9 parts22 - 2 layers242 × 60 mm
- 2 layers74 × 34 mm
EMS Bus Gateway
mariusgreuel/EMS-Bus-Gateway
EMS Bus Gateway for Buderus Boilers to run EMS-ESP32
48 parts21GPL-3.0 - 2 layers36 × 31 mm
ESPDimmer
stelioskat/esp8266-led-dimmer
Wifi enabled LED strip dimmer that is controlled using MQTT messages.
11 parts20MIT - 2 layers
Esp dmx shield
raumzeitlabor/esp-mqtt-dmx
small ESP project which acts as a DMX controller to handle RGB LED PAR lamps via MQTT messages
14 parts16GPL-3.0 - 2 layers110 × 46 mm
Input board
bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.
70 parts13 - 2 layers47.6 × 36.8 mm
- 4 layers28.2 × 85.1 mm
- 2 layers70 × 40 mm
MoreE u blox E PEAS
ldab/Node-RED-Energy-Harvesting-dashboard
Node-RED Energy Harvesting dashboard example, weather forecast, temperature and humidty measurement. MQTT, ESP32, u-blox NINA-W10, HTU21D, IBM Cloud, CloudMQTT
43 parts11MIT - 6 layers158 × 174 mm
TritonECU Main
alpauna/TritonECU
ESP32-S3 engine control unit — fuel injection, ignition timing, wideband O2 (CJ125/LSU 4.9), dashboard, and MQTT telemetry
457 parts10 - 2 layers65 × 56 mm
