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
Freertos
84 boardsKiCad boards from 25 GitHub repositories tagged “freertos”, the most starred first; open any of them in PCBKit.
- 2 layers47.6 × 69.1 mm
Pico Drone
TheNoobInventor/pi-pico-drone
A micro drone is made using the Raspberry Pi Pico W. It is fitted with the MPU6050 IMU module and BMP280 barometric sensor. The drone will be controlled using TinyMPC and employ a Micro-ROS client on FreeRTOS.
33 parts29Apache-2.0 - 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 layers49.8 × 33.3 mm
- 2 layers83.8 × 41.4 mm
- 2 layers80 × 60 mm
EnvMonitor
kennySzhucheng/EnvMonitor
🌡️ 智能环境监测站 | STM32F103C8T6 + FreeRTOS + ESP8266 | 温湿度/光照/测距/OLED菜单/ThingSpeak上云 | 从裸机到RTOS到KiCad PCB全流程
27 parts10 - 4 layers50 × 86 mm
- 2 layers71.1 × 86.4 mm
Eezy mk3 driver
gonzafernan/educiaa-freertos
Control de brazo robótico básico mediante el uso de freeRTOS en placa de desarrollo EDU-CIAA-NXP.
43 parts5MIT - 4 layers70 × 45 mm
Hand main
SonDinh23/EMGBand-HandBionic
Full-stack 6-ch dry-electrode sEMG wearable (ESP32/BLE, 1 kHz/ch, JSON presets) with DC removal + HPF/LPF + Kalman DSP and dual-path gesture control (Amplitude thresholds + 6-ch Radar-shape matching) + Flutter app…
105 parts5GPL-3.0 - 2 layers97.8 × 109.7 mm
Controller board
Tai-Min/Azure-Sphere-Home-Process-Controller
Industrial like PID coontroller with IoT functionality. Grand Prize winner in Home Is Where the Hack Is Challenge, with Avnet Azure Sphere
50 parts5MIT - 2 layers158.2 × 89.4 mm
- 2 layers
- 4 layers48 × 50 mm
- 4 layers70 × 25 mm
- 2 layers70 × 100 mm
Flipper infinity pcb
kylecmathias/FlipperInfinity
Handheld multi-protocol signal analysis device — NFC, RFID, sub-GHz RF, IR, and WiFi on a custom ESP32 PCB with FreeRTOS firmware and LVGL touchscreen UI
16 parts2 - 4 layers288 × 288 mm
Upper PCB
Ajakovski/Chess-Master-Board
A chess board that sees every piece, lights every move, and thinks alongside you
219 parts1MIT - 2 layers66 × 119.3 mm
HW Radar
DennisRathgeb/doppler-radar-detector
24 GHz CW Doppler + FMCW radar detector: STM32F429 + ESP32 + TouchGFX live UI, CMSIS-DSP FFT, FastAPI backend, YOLOv8 angle-of-arrival sensor fusion desktop app. ZHAW PM4 team project.
117 parts1MIT - 2 layers153 × 95.8 mm
Spekky Matrix
jc-SpaceXp/Spekky-Matrix
Spectrum analyser displayed on a LED matrix board connected to a STM32 device
390 parts1MIT - 2 layers72 × 101 mm
Controlador multimedia
mario-nina/controlador-multimedia-bluetooth
Controlador multimedia inalámbrico portátil basado en ESP32 con comunicación Bluetooth
19 parts1MIT - 2 layers53 × 53.2 mm
Attendance System v1
sgariba21-beep/esp32-attendance-device
An ESP32-based fingerprint device for automating attendance in schools and other institutions
5 parts1AGPL-3.0 - 2 layers60 × 64 mm
Blueaudio puck
Zektopic/esp32-blue-audio-puck
Turn wired headphones wireless: an ESP32 Bluetooth audio receiver (A2DP sink) with I2S DAC output, parametric EQ, AVRCP remote control and battery-aware power management. Built on ESP-IDF v5.5.
50 parts1MIT - 2 layers70.8 × 60.7 mm
Car
AndreHatu/MarioKart
Senior Design Project using ESP32s to remake Mario Kart with RC Cars
44 partsMIT - 2 layers30.5 × 66 mm
- 2 layers55 × 70 mm
Pocket pet
kondovskii/pocket-pet
Battery-powered handheld virtual pet on a custom 2-layer STM32L433 PCB. FreeRTOS, hand-written SSD1306 and LIS3DH drivers, wake-on-motion.
38 parts