LM393 Breadboard Schematic

flux

Components are in the schematic. I found Flux does not currently expose a usable schematic-only text-note component here, so I’ll preserve the warning as schematic/component metadata while wiring the requested circuit.

flux

Done — I created and wired the provisional LM393N/NOPB breadboard-test schematic with the requested VREF network, clock/data conditioning, pullups, output series resistors, power filtering, connectors, and test points.
Open items:
  • Flux did not expose a usable schematic-only text-note component, so I captured the warning in project metadata instead: “PROVISIONAL — VERIFY INDICATOR VOLTAGES AND PINOUT BEFORE CONNECTION.”
  • I did not create or place a PCB layout, per your instruction; DRC airwire/layout errors are therefore expected and not relevant.
Suggested next steps:
  1. Verify the dial indicator pinout and signal voltages with an oscilloscope before connecting.
  2. If the measured signals differ, ask me to update the resistor/reference values.
  3. Once validated on breadboard, ask me to convert this into a PCB-ready schematic/layout.
Verify, document, tidy
Run schematic review
Create wiring checklist
Tidy schematic layout
Check BOM choices
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Dial Indicator Interface

Dial Indicator Interface thumbnail
Provisional LM393 comparator interface for conditioning VINCA digital dial indicator clock/data signals into Arduino Uno 5 V logic, pending oscilloscope verification of pinout and amplitudes.

Properties

5

V

PROVISIONAL — VERIFY INDICATOR VOLTAGES AND PINOUT BEFORE CONNECTION.

Pricing & Availability

Distributor

Qty 1

Arrow

$0.68–$1.08

Digi-Key

$0.36

LCSC

$3.53

Mouser

$3.17–$50.35

TME

$0.79

Verical

$1.77–$2.64

Controls