Gesture-Controlled Vehicle Holder PCB Design
Worked for 1 min 20 sec
Yes — J1 is positioned on the left edge near the PCB centerline, with its Type‑C opening flush/overhanging the Ø39 mm board edge for the casing side opening. Its current center is about X = -13.03 mm, Y = -0.38 mm, and its body extends to X ≈ -20.91 mm, slightly past the Ø39 mm board edge at -19.5 mm, which matches a flush side-port style placement.
Note: the board is still flagged as extremely dense/unroutable overall, but this J1 edge placement is now aligned with your intent.
Board too small for placement
0:04
CAN YOU ROTATE J1 90 DEGREES CLOCKWISE?
Worked for 28 sec
Done — I rotated J1 90° clockwise while keeping it centered on the left edge with the Type‑C opening flush/slightly overhanging the Ø39 mm board edge. The layout tool still warns the overall board is very dense, so we’ll need dual-layer placement or BOM reduction for the full board to be routable.
Check J1 clearance
Adjust J1 overhang
Inspect J1 placement
Allow bottom passives
Board too small for placement
0:07
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Gesture Gimbal Phone Holder Controller — Design Specification
Mechanical Envelope
- Main PCB: circular, Ø39 mm maximum, 1.0 mm or 1.2 mm thickness.
- Enclosure: cylindrical brain casing, Ø45 mm × 25 mm height.
- Mounting: three Ø2.2 mm M2 mounting holes on Ø32 mm bolt circle.
- Edge clearance: keep copper at least 0.5 mm from board edge.
PCB Architecture
- Main circular PCB inside cylindrical housing.
- Side USB-C daughterboard connected to main PCB.
- Front camera/IR gesture daughterboard behind front window via FPC.
- Top illuminated capacitive touch button PCB via 4-pin FPC/harness.
Power Tree
USB-C 5V input → ESD/CC protection → Li-ion charger/power path → 1-cell Li-ion battery / VSYS → 5V/6V boost motor rail + 3.3V logic regulator.
Functional Blocks
- USB-C 5V input with CC resistors and ESD protection.
- Single-cell Li-ion/LiPo charger and battery protection.
- Motor boost rail and 3.3V logic regulator.
- ESP32-S3 main controller.
- Front camera/IR gesture connector.
- Central 6-axis/9-axis IMU.
- Top capacitive button connector and illuminated LED drive.
- Three H-bridge DC motor drivers with 6-pin motor/encoder connectors.
- Optional homing inputs.
- Debug/programming connector.
- Test points for USB5V, VBAT, motor rail, 3V3, GND, I2C, PWM, and camera power.
Placement Constraints
- Board outline: circular Ø39 mm.
- Camera connector: X=0, Y=+14 mm.
- Motor connectors: near Y=-13 mm / rear wire-exit side.
- IMU: close to X=0, Y=0.
- MCU: near center, close to IMU but not blocking sensor placement.
- Power/charger/boost/regulator group: one side of board, away from IMU and camera data.
- Motor driver traces: away from IMU and camera data lines.
Routing Notes
- 4-layer stack preferred with solid inner ground plane.
- Use wide copper pours/traces for VBAT and motor rail.
- Keep switching boost node compact and far from IMU/camera connector.
- Add bulk capacitors near boost converter and motor drivers.
- Add ESD protection on USB-C and external daughterboard lines.
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