Sensor Wiring Setup
Thought for 3 sec
Work done
- Integrated the two native PC817 homing sensor channels with labeled X/Y sensor terminals, 10kΩ pullups, 100nF filters, 4.7kΩ status LED resistors, Nano D9/D10 outputs, and a single 0Ω star link between
GND_24VandGND_LOGIC. - Preserved the 100 mm × 152 mm, 2-layer board and placed the new/updated sensor parts in the connector area with no placement overlap or out-of-bounds issues.
- Applied the required 1.6 mm copper spacing rule conservatively and documented the implementation in Homing Sensor Integration Audit.
- ✅ Native X/Y sensor circuitry integrated and connected to
+24V_SENSOR/GND_24V. - ✅
LIMIT_X_NETconnects to Nano D9;LIMIT_Y_NETconnects to Nano D10. - ✅ Sensor terminals are documented as BRN/BLU/BLK and filters/status LEDs are included.
- ✅ Board size and 2-layer stackup are preserved.
- ❌ Final layout DRC is not clean: airwires and overlapping copper remain after the stricter spacing rule, so the board is not fabrication-ready yet.
Run routing cleanup/autoroute for the updated board, then re-check DRC until the airwire and copper-clearance issues are cleared. I can continue with PCB routing/cleanup guidance next.
Route sensor nets
Review DRC violations
Verify clearance rule
Prepare Gerbers
Update audit doc
Refine this doc
Ask about this doc
Jerky Robot V3 Implementation Status
Completed
- Replaced connector placeholders with correct pin-count connector footprints where available: J2/J10 2-position, J1/J5/J6/J8 3-position, J7/J11/J13 4-position, J3/J4 6-position, J9 8-position, J12 1x6 header.
- Replaced U3/U4 with PC817 DIP-4 through-hole optocouplers.
- Set resistor values: R1-R10 = 10kΩ, R11/R13-R17 = 1kΩ, R12 = 4.7kΩ.
- Set capacitor values/packages: C1-C6 = 100nF 0805, C7 = 10µF 0805, C8 = 10µF 35V 1206.
- Set LED colors: LED1/LED7 red, LED2 yellow, LED3/LED4 green, LED5/LED6 blue.
- Marked U5 HX711 as optional-populate SOIC-16.
- Wired power rails, UART level shifters, stepper outputs, sensor optos/filters, HX711/SD/OLED headers, relay header/indicator, button box, spare expansion, status LEDs, and test points.
- Cleared floating-pin and no-connect ERC warnings by wiring spare level-shifter channels and marking intentionally unused module/mechanical pins.
- Set PCB outline to 100 mm × 152 mm and stackup to Standard 2 Layer.
- Applied baseline 0.2 mm trace/spacing and 0.6/0.3 mm via intent.
- Placed all 65 components on the top side with mounting holes at 5 mm corner offsets and connectors on the perimeter.
Known deviations / remaining work
- J9 uses an 8-position Phoenix terminal block available in the Flux library, but its pitch is 3.50 mm because an exact 8-position 5.08 mm MKDS-1.5/N library part was not available.
- The board is placed but not routed; current review reports 103 airwire issues, meaning traces still need to be routed.
- Bottom-layer solid GND pour and via stitching intent is configured at a high level, but final copper-fill/routing verification remains pending after routing.
- Final silkscreen readability, connector pin labels, and JLCPCB production review remain pending after routing.
Current validation snapshot
- Missing footprints: pass.
- Invalid layer: pass.
- Overlapping copper: pass.
- ERC floating pins: pass.
- ERC no-connect violations: pass.
- Airwires: not pass; routing remains required.
Completed
Known deviations / remaining work
Current validation snapshot
