2 layers36.4 × 29.4 mm
Kicad Smart Watch
AFLProjects/DIY-Smart-Watch
DIY Smart Watch with ATMEGA32U4 , ST7789 SPI display and RV3028-C7 Extreme Low Power RTC Module
63 parts12
Boards using the TPS62840DLCR
33 boardsBoards in 25 GitHub repositories, designed in KiCad, that use the TPS62840DLCR by Texas Instruments (-40℃~+125℃@(TJ) 1 1.8MHz 1.8V~3.3V 1.8V~6.5V 60nA 750mA Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Output discharge、Cycle-by-cycle current limiting Step-down type Yes VSON-8(1.5x2) DC-DC Converters ROHS). See how each wires it, with its parts, size, README and files; the TPS62840DLCR’s symbol, footprint and pinout are on its own page.
- 2 layers15.2 × 31.1 mm
OlmBoard v1
azerimaker/olmBoard
This is a TPS62840 based, highly-efficient, breadboard-friendly buck converter
25 parts8MIT - 2 layers55.6 × 57.2 mm
- 2 layers62 × 30 mm
ECG
NguyenThanhHuy-debug/PCB_IoT-Heart-rate-ECG-Monitoring-Device
The PCBIoT-Heart-rate-ECG-Monitoring-Device repository provides open-source hardware design files for an IoT-enabled electrocardiogram (ECG) and heart-rate monitoring device.
100 parts4 - 6 layers51 × 65 mm
- 4 layers89 × 54 mm
OBCProto
Kmshanley/PicoSat-Initiative
The pocket cube standard requires satellites to be 5x5x5cm and under 250 grams. Upon completion of this Wentworth PicoSat it will become one of the smallest satellites capable of high resolution imagery from LEO.
126 parts3GPL-3.0 - 4 layers12 × 20 mm
- 4 layers44.5 × 50.6 mm
- 4 layers88 × 48 mm
Mainboard reva
aliaksei-lameyka/ENKU-Clock
Open, repairable, local-first e-paper alarm clock.
82 parts1 - 6 layers53 × 80 mm
- 4 layers30 × 51 mm
Env sensor b
marcelpetrick/sensorly-unhinged
My very first PCB: an ESP32-C6 temperature/humidity sensor prototype, exploring compact and thermally isolated layouts from one shared electrical design.
64 parts1GPL-3.0 - 4 layers45 × 69 mm
OpenVault
NoctaLabs-Sh/Nocta-One-Hardware
Open hardware for the Nocta vault: an offline password manager with a 2.7 inch e-ink screen. KiCad schematic, board layout, gerbers and BOM. CERN-OHL-S v2.
64 parts1CERN-OHL-S-2.0 - 4 layers45 × 30 mm
CHIPDOWNARM
8aChristian/CHIPDOWNARM
CHIPDOWNARM is a highly optimized, industrial-grade IoT telemetry edge node designed for mission-critical Sub-GHz LPWAN networks, remote monitoring, and smart agriculture deployments.
60 parts - 4 layers80 × 60 mm
Core
abolambA/Luxera
Luxera One is a from-scratch attempt to build what the big labs keep teasing: AR glasses that look like actual glasses. Everything — compute, batteries, optics, sensors, audio — seals inside a chunky acetate frame.
56 partsMIT - 6 layers31.8 × 27 mm
- 2 layers38.9 × 48.9 mm
- 2 layers110 × 119 mm
V2 Queens2026
FelixStA52/BRACHIOSAURUS
Boxed Recorder Analyzing Change in Height of Ice with On Site Accelerometer and Ultrasonic Readers Utilizing Support (BRACHIOSAURUS)
55 parts - 2 layers58.9 × 25.7 mm
LoTiBloxy
GiovaSanta/PulseOxyemeter-LotiBloxy
a bluetooth pulse oxymeter Printed Circuit Board Design Project. PCB is meant to take spo2 measurements and sends results to an application via Bluetooth
51 parts - 4 layers20 × 45 mm
Stm32
NgThachThanh/stm32-buck-vs-ldo
Benchmark năng lượng đầu vào Buck TPS62840 vs LDO STLQ020 trên cùng PCB STM32L432+BME280 duty-cycle Stop2 — INA228 20-bit, 3.30-4.20V, 286 runs, KiCad + Python
30 partsMIT - 2 layers100 × 50 mm
BPV4 CollarEVAL
rees3901/BluepawsV4
version 4 of my on-going cat tracker project. this differs in structure in that both the TX collar and Rx homehub will be in the same repo to ensure intercompatability
58 parts - 4 layers86 × 78 mm
OutdoorMeasureUnit
Tepetop/Weather-Station
Lokalny agent Python do analizy i edycji kodu STM32, z automatyczną kompilacją trzech wariantów projektu i testami hosta.
51 parts - 4 layers49.5 × 49 mm
AERoS
TKAman23/AERoS
An All-Encompassing Rocket System (AERoS) currently in development
119 partsAGPL-3.0 - 8 layers50 × 70 mm
- 4 layers64 × 58 mm
Final baseplate model 66
Kmshanley/PicoSat-Initiative
The pocket cube standard requires satellites to be 5x5x5cm and under 250 grams. Upon completion of this Wentworth PicoSat it will become one of the smallest satellites capable of high resolution imagery from LEO.
41 parts3GPL-3.0