BF-SR-PCBv1 Project Specification
Purpose
Mechanical and signal relocation PCB for an Espressif ESP32-S3-DEVKITC-1-N32R16V development board. The PCB contains no active circuitry; it only relocates signals through copper traces.
Core Requirements
- 2-layer PCB.
- Mount one ESP32-S3-DEVKITC-1-N32R16V using two 1x22 female sockets.
- Route every pin straight through 1:1 to two additional 1x22 male headers.
- No pin remapping.
- No resistors, capacitors, LEDs, voltage regulators, ICs, or other active/support circuitry.
- Only copper traces between connectors and test points.
- Four M3 mounting holes.
- USB-C connector remains accessible.
- No copper under USB connector.
- Four grouped service test points:
- TP1 = 5V
- TP2 = 3.3V
- TP3 = 3.3V
- TP4 = GND
- Compact layout while maintaining 2.54 mm connector spacing.
- Black solder mask and white silkscreen.
- Intended for industrial DIN enclosure mounting.
Required Silkscreen
- BayFinder™
- BF-SR-PCBv1
- Signal Relocation PCB
- Revision A
- ESP32-S3-DEVKITC-1-N32R16V
- No active circuitry.
Verification Criteria
- All 44 devkit socket pins connect 1:1 to matching relocation header pins.
- No active components or passives in BOM except connectors, sockets, test points, mounting holes.
- Service test points connect to the required rails only.
- Board has 2 layers, four M3 holes, USB keepout/copper exclusion, and readable silkscreen.