ESP32-C3 Dual-Servo Controller Design
Add the RF antenna matching network, run full ERC, then fix any remaining schematic issues.
Thought for 4 sec
I’ll add the ESP32-C3 RF antenna/matching network at LNA_IN, then run a full ERC and fix the remaining schematic-level issues I find.
Worked for 6 mins 24 sec
Added the ESP32-C3 RF path: U1 LNA_IN → RF π-match → U.FL antenna connector J4, with R9 = 0 Ω series, C20/C21 = DNP shunt tuning pads, and J4 shell grounded.
ERC/passive re-check is clean: no open schematic ERC or passive-component issues remain.
Open items:
- PCB layout DRC still reports expected unplaced/unrouted issues from the new schematic parts.
- RF layout still needs controlled 50 Ω routing, short match placement, ground stitching, and antenna keepout.
Suggested next steps:
- Place U1, crystal, RF match, and J4 for RF layout.
- Set 50 Ω RF routing/stackup constraints.
- Route the board and clear DRC airwires/overlaps.
Place route and check
Place RF section
Set RF constraints
Route and fix DRC
Create layout docs
