Digital Fuel Tank Gauge with ESP32 & INA219
đź”— Full Guide · Transcript Add a clean digital gauge alongside your existing analog gauge—without losing what already works. This guide shows how to read a standard fuel-tank sender (resistive type) with an ESP32 and an INA219, convert the voltage to % full in Home Assistant, and display a needle gauge. The same pattern works […]
Digital Engine Tachometer with ESP32 and Optocoupler
đź”— Full Guide · Transcript Build a simple, accurate digital tachometer for your engine using an ESP32 “remote hub,” a ~$2 optocoupler, and ESPHome/Home Assistant. This guide covers wiring (alternator tacho → optocoupler → ESP32), ESPHome setup with a pulse counter, RPM calibration from real data points, optional engine-hours and engine-active entities, and a dashboard […]
ESP32
In the rapidly evolving world of smart technology, the ESP32 microcontroller stands out as a game-changer, especially for the boating community. This powerful, versatile, and cost-effective device is transforming how we approach marine automation and smart boating. In this article, we’ll explore what the ESP32 is, its capabilities, and how it integrates seamlessly with ESPHome and Home Assistant to enhance your boating experience.