I completed the schematic for the Magic Notebook backing board: ESP32-S3-WROOM-1-N16R8, USB-C power/data with ESD and CC pull-downs, LiPo charging/protection, AP2112K 3.3 V regulation, TSC2007 touch controller, OPA2333 auxiliary buffer, FPC touch connector, buttons, LED, and all required passives. I also created project docs for the spec, power budget, firmware starter, bring-up plan, and regulatory notes, then ran validation; the selected checks came back clean.
Estimated time saved vs. manual EDA workflow: ~8–12 hours.
Open items:
The exact SGM4056 part was not available, so I used SGM40567; confirm the ordered variant is the intended 4.2 V LiPo charger before fabrication.
Layout is not done yet.
AI features are currently unavailable because the account has no available ACUs, so I can’t continue executing more tasks in this run.
Suggested next steps:
Place components on a compact 4-layer A5 backing-board layout.
Route USB D+/D− as a controlled-impedance pair and enforce ESP32 antenna keepout.
Review the SGM40567 charger variant before ordering boards.
Add test points for VBUS, BAT_PLUS, 3V3, GND, SDA/SCL, and PENIRQ.
Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
General Purpose Thick Film Standard Power
and High-Power Chip Resistor
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film
Features:
- RMCF – standard power ratings
- RMCP – high power ratings
- Nickel barrier terminations standard
- Power derating from 100% at 70ºC to zero at +155ºC
- RoHS compliant, REACH compliant, and halogen free
- AEC-Q200 compliant