Welcome to your new project. Imagine what you can build here.

Model for the PCA9685 Breakout Board Ideally, standoffs could be added or a 2.54mm right angle female header

This is a USB type C female header to 6 pin pinout for SPI protocol. Do not use this for USB protocol. This is meant to be used with Scale Snap 3D to reduce RF noise across (max) 1 meter distance.

Arduino Uno shield PCB that reproduces the working keypad door lock breadboard wiring exactly, using female Uno headers, LCD and keypad connectors, servo and buzzer connections, indicator LEDs, mounting holes, silkscreen labels, and manufacturing exports.

Wearable health device prototype schematic with ECG sensing via AD8232, motion sensing via BNO085 or BMI270 IMU breakout, on-board processing using TI TM4C123G LaunchPad or MSPM0G3507 LaunchPad, optional ESP8266 Wi-Fi, LiPo battery charging with MCP73831, regulated 3.3 V power from TPS63031 buck-boost or AP2112 LDO prototype option, and user interfaces including electrode connector, JST battery connector, programming header, and optional on/off switch.