ESP32-S3 Watch Design
Worked for 5 mins 29 sec
Created 7 project docs
RF Design Evidence — ESP32-S3 OLED Watch
Status: Draft design-stage evidence; not a certification record. Radio module: U1, ESP32-S3-MINI-1-N8, Espressif, 8 MB flash.
Draft Declaration of Conformity — ESP32-S3 OLED Watch
DRAFT — NOT SIGNED, NOT VALID FOR MARKET PLACEMENT, AND NOT A CLAIM OF COMPLIANCE Product name: ESP32-S3 OLED Watch
Preliminary Safety Analysis — ESP32-S3 OLED Watch
Status: Design-stage analysis only; not a safety certification. Indoor wrist-worn consumer prototype/reference design; not medical or safety...
Preliminary Safety FMEA — ESP32-S3 OLED Watch
Scale: Severity (S), Likelihood (L), Detection difficulty (D): 1 low/easy to 5 high/difficult. RPN = S×L×D. Values are preliminary engineeri...
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Created the complete ESP32-S3 OLED watch schematic with USB-C, 200mA LiPo power-path charging, 3.3V buck-boost regulation, BMI270 IMU, MAX17048 fuel gauge, OLED, and five buttons. All 52 components and 30 nets are electrically verified with zero ERC errors and no wire/symbol collisions.
Open items
- PCB dimensions, battery size, enclosure, and final OLED mechanical geometry must be defined before layout.
- R7 is DNP when using a battery with a 10kΩ NTC; populate it for a two-wire battery.
- Detailed requirements are in the Project Specification and Power Budget.
Suggested next steps
- Define the watch outline and OLED/battery dimensions.
- Begin four-layer PCB placement with the ESP32 antenna keepout.
- Review the Firmware Starter.
- Proceed to routing after placement approval.
arrange the schematic by functional group.
Thought for 9 sec
I’ll reorganize the schematic into clearly separated functional blocks, preserve every connection and value, then re-run electrical and geometry checks.
Worked for 13 mins 15 sec
Arranged all 52 schematic components into distinct functional groups: USB/protection, LiPo charging, buck-boost supply, ESP32-S3, I²C peripherals, OLED, and user controls. Connectivity is unchanged, with zero ERC errors, wire collisions, symbol collisions, or label collisions.
Open items
- 15 cosmetic lint warnings remain: three unavoidable pin-alignment kinks, two cross-group resistor-bank warnings, and duplicated distant-ground warnings for the isolated USB block.
Suggested next steps
- Define watch PCB dimensions and display/battery geometry.
- Start four-layer PCB placement with the ESP32 antenna keepout.
- Review placement before routing.
Layout, review and BOM
Start PCB layout
Define placement intent
Review schematic deeply
Check BOM risk
Fix cosmetic warnings
