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
IoT
408 boardsKiCad boards from 252 GitHub repositories tagged “iot”, the most starred first; open any of them in PCBKit.
- 4 layers25.4 × 58.5 mm
Shrike lite
vicharak-in/shrike
Low cost microcontroller + FPGA board for makers , hobbyist and student for endless possibility.
60 parts537GPL-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 - 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 - 2 layers129.5 × 50.8 mm
- 2 layers50 × 38 mm
- 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 - 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 - 4 layers119 × 79 mm
Luxdmx
tombueng/LuxDMX
Open-source Art-Net / sACN (E1.31) → DMX512 gateway for ESP32 / ESP32-S3 / Ethernet. Live web UI shows all 512 channels in real time, flags console conflicts, and drives galvanically-isolated DMX.
97 parts97 - 4 layers54.6 × 57.1 mm
CM5 MINIMA
piecol/CM5_MINIMA_REV1
CM5 LoRaWAN carrier board in a compact, feature-filled footprint
98 parts63CERN-OHL-S-2.0 - 2 layers86 × 86 mm
Production
kerikun11/IR-Station
Infrared Remote Controller with ESP8266 WiFi-module. You can control your home appliances with your smartphone or laptop.
128 parts54MIT - 2 layers87.5 × 70 mm
010 Implementation
NewTec-GmbH/esp32-can-iot
A ESP32 based interface between CAN-bus and IoT environments.
70 parts51BSD-3-Clause - 4 layers101.6 × 53.3 mm
H730duino
martinribelotta/h730duino
STM32H7 Arduino form factor and software compatible board
111 parts47MIT - 2 layers89.2 × 103.5 mm
Oas
hubertciebiada/open-ambient-sensor
OAS — Open Ambient Sensor: DIY multi-sensor indoor environmental monitor (CO2, PM, VOC/NOx, temperature/humidity, mmWave presence) on ESP32-C6 with ESPHome / Home Assistant integration
64 parts44GPL-3.0 - 2 layers51 × 23.1 mm
Feather rak3172
teapotlaboratories/feather-rak3172
Teapotlabs Feather RAK3172: Low-cost Low-power LoRaWAN Development Board
53 parts43MIT - 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 layers33 × 61 mm
IoT Power Meter schematics
Nurgak/Internet-of-Things-Power-Meter
Device to view household power consumption
9 parts37 - 2 layers36.8 × 90.9 mm
Bwlr1e
teapotlaboratories/bwlr1e
Teapotlabs BWLR1E: Wireless Environmental Sensor with Energy Harvesting from Solar Energy
65 parts36MIT - 6 layers68.9 × 47.5 mm
Mowi
septentrio-gnss/mowi
Mowi is an Open Source hardware project that combines a compact Septentrio's GNSS receiver mosaic with a wireless ESP32 Wrover module
283 parts35 - 2 layers79.2 × 59.2 mm
- 2 layers43.3 × 37.6 mm
ZBSmartMeter
Tropaion/ZigBee_SmartMeter_Reader
This is a ZigBee device to collect data from smartmeters using the DLMS/COSEM protocol.
37 parts32GPL-3.0 - 2 layers84.5 × 80.3 mm
- 2 layers50 × 25 mm
LoRa Environmental Sensors
spielhuus/LoRa-Environmental-Sensors
ATtiny85 based LoRa atmospheric sensor board with BME280
5 parts28 - 4 layers100 × 75 mm
OpenAirScope
emertcakir/OpenAirScope
Open-source air quality and environmental monitoring node with STM32H743 + ESP32-C3, LoRaWAN, RS485, USB-C, Li-ion charging, and multi-sensor support.
282 parts26MIT