Black & White Path

May 15, 2026 · Fundamentals

Real‑Time Battery Monitoring with MAX17048 and ESP8266 via MQTT

This tutorial shows how to use a MAX17048 fuel‑gauge module with an ESP8266 (or ESP32) to read voltage, state‑of‑charge and charge‑rate of a 18650 Li‑ion cell, wire the hardware correctly, calibrate the sensor, and publish the data in real time through MQTT for remote monitoring.