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 readMost Popular
LM393 Light Sensor with Arduino
Wire up an LM393 light sensor module, read analog and digital outputs, and build 3 starter projects. Beginner-friendly.
Read tutorial →
Intermediate12 min readNew
LM393 Sound Sensor with ESP32
Build a WiFi-enabled noise monitor. Includes Arduino + MicroPython code, and Home Assistant integration via ESPHome.
Read tutorial →
Intermediate15 min readNew
LM393 Battery Monitor Circuit (BMS)
Design a low-voltage cutoff / over-voltage protection circuit for Li-ion, LiFePO4, or lead-acid batteries.
Read tutorial →
More tutorials coming soon
- 📕 LM393 Solar Charge Controller
- 📒 LM393 Motor Speed Tachometer
- 📓 LM393 Line-Following Robot
- 📔 LM393 IR Obstacle Avoidance