Smart Boat 13: Engine Temp Monitor using ESP32 and DS18B20

In this tutorial, discover how to set up a sophisticated engine temperature monitoring system using the ESP32 microprocessor and DS18B20 one-wire sensors, capable of withstanding extreme temperatures up to 125C and offering waterproof capabilities.

Learn how to strategically place four DS18B20 sensors in various parts of your boat's engine — including near the coolant, thermostat, raw water elbow, and alternator — to preemptively receive warnings before reaching a critical state.

I guide you through the process of configuring alerts for abnormal temperature increases, helping to prevent issues like intake blockages or worn impellers, and sharing insights on the added benefits of monitoring alternator temperatures, especially when using lithium batteries.

Equip yourself to monitor and analyze your boat engine's temperature trends efficiently with this detailed setup guide.

✔ ESP32 - 38 pins

🎁 Amazon: Select 38pin model
https://geni.us/esp32-38pin

🎁 AliExpress:
https://s.click.aliexpress.com/e/_DFE...

✔ ESP32 38 pins Breakout Board

🎁 Amazon:
https://geni.us/esp32-38pin-breakout

🎁 AliExpress:
https://s.click.aliexpress.com/e/_DdP...

✔ ESP32 - 30 pins

🎁 Amazon: Select 30pin model
https://geni.us/esp32-30pins
https://geni.us/esp32-30pin-kit

🎁 AliExpress: Mirco USB or USB C models
https://s.click.aliexpress.com/e/_DdF...

✔ ESP32 30 pins Expansion Breakout Board

🎁 Amazon:
https://geni.us/esp32-30pin-breakout

🎁 AliExpress:
https://s.click.aliexpress.com/e/_DFM...

✔ 12v to 5v Converter

🎁 Amazon:
https://geni.us/12v-5v-converter

🎁 AliExpress: Select the 12V to 5V 3A option
https://s.click.aliexpress.com/e/_Deu...

✔ INA219 Module:

🎁 Amazon:
https://geni.us/yE8oa

🎁 AliExpress: Select soldered option or ask them
https://s.click.aliexpress.com/e/_Dd2...

✔ Dupont breakout cables:

🎁 Amazon:
https://geni.us/Dupont-cables

🎁 AliExpress:
https://s.click.aliexpress.com/e/_DdQ...

✔ Temperature Sensors Dallas One Wire:

🎁 Amazon:
1M Length
https://geni.us/vANa
3M Length
https://geni.us/7KqXm1w

🎁 AliExpress: Select length and pieces option
https://s.click.aliexpress.com/e/_DBy...

✔ Resistors for Temp Sensor ( 4.7K OHM ):

🎁 Amazon: Kit of various sizes
https://geni.us/DWBKQ

🎁 AliExpress: Kit of various sizes
https://s.click.aliexpress.com/e/_Deu...

✔ Junction Box (80mm x 80mm):

🎁 Amazon:
https://geni.us/n9oc7
https://geni.us/a3xe

🎁 AliExpress: Select 83x81x56mm
https://s.click.aliexpress.com/e/_DBO...

If you'd like to support me so that I can buy extra sensors and equipment for future projects:

💖 Buy Me a Coffee:
https://ko-fi.com/smartboatinnovations

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Chapters
0:00 Introduction
1:53 Dolphin
2:01 ESP32 and DS18B20 Overview
5:31 Engine sensor locations
5:56 Adding to Home assistant
10:42 Add gauge to Dashboard
12:07 4 Gauges and analytics
13:23 Add Automation
14:15 My Boat
14:27 Outro