Lockbox
PCB Overview
PCB Overview for Lockbox.
The Lockbox PCB is the control and power distribution board for the device. It carries the ESP32-S3 control electronics, motor driver interface, battery and USB power path, magnetic position sensing, rotary encoder inputs, button inputs, and TFT display connection.
KiCad board file
Download the board file for KiCanvas or KiCad.
Electrical architecture
| Area | Role |
|---|---|
battery_and_power.kicad_sch | Battery input, USB power detection, charging/power regulation, and current-sense support |
mcu_and_ui.kicad_sch | ESP32-S3, rotary encoder, button inputs, display interface, and user-facing controls |
mag_sensors.kicad_sch | Hall/TMR magnetic sensing used to detect the backplate and latch position |
motor.kicad_sch | DC motor output and motor connector |
screen.kicad_sch | TFT display connector and supporting display signals |
PCB source files
| Asset | Link |
|---|---|
| KiCad project | LockBox.kicad_pro |
| Main schematic | LockBox.kicad_sch |
| Board layout | LockBox.kicad_pcb |
| Schematic sheets | battery_and_power.kicad_sch, mag_sensors.kicad_sch, mcu_and_ui.kicad_sch, motor.kicad_sch, screen.kicad_sch |
| Footprints and symbols | Lockbox.pretty/, Lockbox.kicad_sym |
| STEP model | LockBox_v0.1.step |
| Datasheets | datasheets/ |
| Fabrication output notes | FAB_OUTPUT.md |
| Latest production Gerbers | production/v1.4/LockBox_V1.4.zip |
| Latest production PCB BOM | production/v1.4/bom_v1.4.csv |
| Latest production positions | production/v1.4/positions_v1.4.csv |
Production package
The current production output referenced by these assembly docs is v1.4. Older v1.2/v1.3 production export bundles were removed from the OSS repo so the public hardware package points at the current production assets.