Custom ESP32-S3 Baseboard Design
Worked for 2 mins 45 sec
Datasheet check is partly complete: the high-current P-MOSFET reverse-protection part is suitable for the 5A+ path, and the NPN driver part is suitable for GPIO gate/buzzer drive. I’m now selecting the safest electronic switch part for the three special floating A/B filter channels before adding the full schematic.
Worked for 4 mins 20 sec
Progress made:
- Renamed the project and updated the description.
- Created/updated project files for the system architecture, GPIO map, external regulated 5V input, >5A power-path requirement, and external
MAIN_POWER_SWITCHconnector approach. - Added the main schematic components: ESP32-S3 44-pin DevKit placeholder, high-current P-MOS reverse-polarity MOSFET, 5V/12V screw terminals, servo/OLED/UART/TFT/INA226 connectors, normal MOSFET output hardware, buzzer, flyback diodes, and 3x solid-state MOS-output relay parts for the special filter channels.
- Verified key datasheet points for the P-channel MOSFET and 2N3904 driver; the ESP32-S3 DevKit exact N16R8 footprint still must be confirmed before manufacturing.
Current state:
- Components have been added, but the schematic is not wired yet.
- No PCB layout has been started.
- Review/ERC has not been run yet.
Remaining work:
- Add passive parts: bulk capacitors, decoupling capacitors, I2C pull-ups, gate/base resistors, LED resistors, LC/RC filter components, and mounting holes.
- Wire the 5V input path through reverse-polarity protection and
MAIN_POWER_SWITCH, then split intoSERVO_5VandLOGIC_5V. - Wire ESP32 GPIOs to servos, TFT, I2C, UART, buzzer, normal MOSFET outputs, and filter relay channels.
- Wire the 3 special filter channels exactly per your A/B, C1/C2/R1, L1/L2, and MOSFET relay topology.
- Run review/ERC and fix violations.
- Confirm the exact ESP32-S3 N16R8 44-pin board footprint/pinout before layout/manufacturing.
Wire power tree
Use Option A
Add capacitors
Run ERC
Add mounting holes
