Complete Engine Monitoring for Boats
Complete System Build a complete engine-monitoring dashboard with 8 gauges: 4× Temperature (DS18B20) + 1× Tachometer (RPM) + 1× Oil Pressure + 1× Fuel Tank Level + 1× Engine Hours. All sensors feed a single ESP32 running ESPHome, visualised in Home Assistant. 4× Temp gauges 1× Tachometer 1× Oil pressure 1× Tank level 1× Engine […]
Oil Pressure monitor with ESP32, INA219
🔗 Full Guide · Transcript Build a digital oil-pressure monitor using an ESP32 “remote hub,” an INA219 board over I²C, and Home Assistant/ESPHome. This guide follows every technically relevant step from the video: soldering the INA219, wiring to the ESP32, tapping the existing oil sender’s “Gauge” terminal, adding INA219 in ESPHome, calibrating volts→bar from two […]
Oil Pressure Monitoring for Boats

In this article, we delve into setting up oil pressure monitoring for an engine using the versatile ESP32 microprocessor.
INA219: Precision Voltage & Current Monitoring for Boats

In the world of smart boating, accurate monitoring of electrical parameters is crucial for ensuring the reliability and efficiency of your vessel’s systems. One key component that can help achieve this is the INA219 board, a high-side current sensor that can measure both the bus voltage and the current flowing through a load. This article will guide you through connecting the INA219 to an ESP32, configuring it using ESPHome, and understanding its advantages over traditional voltage dividers.