Board Design with Resistors

Started implementing a plan

#Goal

- Prevent the 3‑pin header (H1) from overlapping the optical sensor window and ensure trace routing avoids the sensor aperture to maintain optimal sensor performance on the QRE1113GR Reflective Optical Sensor 3.3V Breakout Board.

#Implementation plan

1. Reposition Header H1:

1. Move H1 away from the sensor aperture to clear the optical sensor’s window.

2. Align and rotate H1 as needed for proper breadboard access while maintaining clearance.

2. Incorporate a Keepout Region:

1. Create a mechanical/copper keepout over the optical sensor window.

2. Remove any copper area underneath the sensor aperture to avoid interference.

3. Re-route Traces:

1. Reroute nets (3V3, OUT, GND) around the keepout region, preserving original net names and connectivity.

4. Update Board Documentation:

1. Adjust silkscreen labels to reflect the new header placement and clear area around the sensor.

2. Run DRC and ERC to verify that the layout complies with design rules and that no traces cross the optical aperture.

#Success criteria

- Header H1 is repositioned so that no pins or traces cross the optical sensor window.

- A keepout region is present over the sensor aperture with no copper underneath.

- All nets (3V3, OUT, GND) are successfully rerouted around the keepout region with maintained connectivity.

- Updated silkscreen labels are clear, and the design passes DRC/ERC checks.

189 days

Repositioning header H1 for clearance...

0:06

Started: Move component H1 away from the sensor’s optical window and rotate it for proper breadboard access, ensuring no overlap with the sensor aperture.

189 days

Rotating H1 for breadboard alignment...

0:08

Started: Rotate H1 for proper breadboard access and orientation.

189 days

flux

0:00

No changes were made; all plan tasks require manual action.
Tasks I cannot perform for you (need to be done in the PCB editor):
  • Reposition and rotate header H1 to clear the sensor window
  • Define a mechanical keepout and copper keepout over the optical sensor aperture
  • Sever and reroute the 3V3, OUT, and GND traces around the keepout region
  • Update silkscreen labels for H1 and clear silkscreen around the sensor
  • Run DRC and ERC to verify no violations and correct connectivity
Success criteria status:
  • Header repositioned: not met
  • Keepout region with no copper: not met
  • Nets rerouted around aperture: not met
  • Silkscreen updated and DRC/ERC passed: not met
Next step: Use the PCB layout editor’s Move/Rotate tools to relocate H1 away from the sensor, draw the keepout regions on the mechanical and copper layers, reroute the traces using the interactive router, update silkscreen items, then run DRC/ERC to verify compliance.
189 days
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QRE1113GR

QRE1113GR thumbnail
QRE1113GR Reflective Optical Sensor 3.3V Breakout Board

Properties

graph LR VCC[3V3] --> C1[100nF Decoupling] C1 --> GND[GND] VCC --> R1[160Ω Series Resistor] R1 --> LED(IR LED in QRE1113GR) LED --> GND VCC --> R2[51kΩ Pull-Up] R2 --> PT(Phototransistor in QRE1113GR) PT --> GND PT --> OUT[OUT] subgraph Header[3-Pin Header] H1(3V3) H2(OUT) H3(GND) end VCC --> H1 OUT --> H2 GND --> H3

16.175

mm

Sensor

Standard 4 Layer

21.9

mm

ON Semiconductor

QRE1113GR

onsemi.com/pdf/datasheet/qre1113-d.pdf

U

Pricing & Availability

Distributor

Qty 1

Arrow

$0.24–$0.27

Digi-Key

$0.61

LCSC

$0.35

Mouser

$0.24

TME

$0.26

Verical

$0.10–$0.44

Controls