Tiny office

Hardware: Tiny Office Nameplate

This folder holds the hardware design for the electronic nameplate.

Wiring summary (for assembly and KiCad)

• Power: USB → NUCLEO-L432KC (ST-LINK Micro-AB). 3.3 V and GND from the board.
• OLED (SSD1306 I2C):
  • VCC → 3.3 V (Nucleo)
  • GND → GND (Nucleo)
  • SDA → I2C SDA (use Arduino Nano–compatible header pins for Nucleo-L432KC; see board pinout)
  • SCL → I2C SCL
• Brass wire stand: mechanical only; no electrical connection.

KiCad schematic

The schematic should show:

1. NUCLEO-L432KC (or a connector representing its 3.3 V, GND, I2C SDA, I2C SCL).
2. SSD1306 OLED module (or generic I2C display symbol) with VCC, GND, SDA, SCL.
3. USB power input (or a power symbol) feeding the Nucleo.
4. Nets: 3.3 V and GND between Nucleo and OLED; SDA and SCL between Nucleo and OLED.

Create or open a KiCad 7+ project in this folder (e.g. tiny-office.kicad_pro) and add tiny-office.kicad_sch with the above. Symbol libraries: use STM32 or “Connector” for the Nucleo, and a generic “Display” or “Connector” for the OLED if no SSD1306 symbol is available.

Validation (optional, once)

• Schematic ERC: Open the project in KiCad → open the schematic → Inspect → Electrical Rules Check. Fix any reported issues if needed.
• PCB DRC: Already run via kicad-cli pcb drc; only library-path warnings remain. You can also run Inspect → Design Rule Checker in PCB Editor.
• Footprints: J1 and J2 have the footprint Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical assigned in the schematic.