4 layers80 × 87.6 mm
AratMicro
vorlaxen-labs/AratMicro
High-performance, open-source micromouse robot platform built for Robosam and MEB Robot (Ministry of National Education Robotics Competition, Turkey).
110 parts1MIT
Boards using the PCA9554PW
4 boardsBoards in 4 GitHub repositories, designed in KiCad, that use the PCA9554PW by NXP Semiconductors (-40℃~+85℃ 10mA 2.3V~5.5V 24mA 250nA 400kHz 4V 500mV 8 8 I2C、SMBus Interrupt Output Reset function、Cascading and address extension TSSOP-16 I/O Expanders ROHS). See how each wires it, with its parts, size, README and files; the PCA9554PW’s symbol, footprint and pinout are on its own page.
- 2 layers50 × 70 mm
Stacklight Controller
lmtreser/mecanica
Repositorio educativo de modelos 3D, en general dispositivos o artilugios mecánicos para vincular con electrónica
47 partsGPL-3.0 - 2 layers43.2 × 43.2 mm
SparkFun Portability Shield
sparkfun/SparkFun_Portability_Shield
A small board that adds a display, navigation, logging, and battery management.
103 parts - 2 layers25.4 × 25.4 mm
SparkFun Qwiic Directional Pad
embeddedos-org/eCAD-Hardware-Products
Hardware designs + EE docs + Board datasheets of Multiple products
69 parts8MIT