Lockbox Assembly Docs
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.
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.