LM393 Tutorials & Guides

Step-by-step tutorials for building circuits with LM393, LM358, and LM339 voltage comparators. Arduino, ESP32, BMS, solar, and more.

Beginner8 min read

LM393 Light Sensor with Arduino

Wire up an LM393 light sensor module, read analog and digital outputs, and build 3 starter projects. Beginner-friendly.

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More tutorials coming soon

  • 📗 LM393 Sound Detection with ESP32
  • 📙 LM393 Battery Monitor Circuit (BMS)
  • 📕 LM393 Solar Charge Controller
  • 📒 LM393 Motor Speed Tachometer