Blog

Guides and walkthroughs

Step by step from the first reading to a whole fleet of devices. With screenshots, code and the exact clicks in the app.

The HydroNode Fleet page listing devices with firmware, config revision and live stateThe HydroNode Fleet page listing devices with firmware, config revision and live state
Guide

Update every device over the air with Fleet

Change the interval, the sleep mode or the firmware of one board or forty without a USB cable. Jobs, templates, verify modes and rollback explained.

7 October 20268 min read
The HydroNode Device Builder start page with three ways to build a deviceThe HydroNode Device Builder start page with three ways to build a device
Tutorial

An ESP32-C3 sensor without writing a single line of code

Pick the board, wire a BME280, choose a power mode and flash it from Chrome. Step by step through the HydroNode Device Builder, with updates over the air afterwards.

4 October 20269 min read
A HydroNode sensor page with the device console open at the bottomA HydroNode sensor page with the device console open at the bottom
Guide

Why is my sensor not sending? Debugging with the device console

Every request your device makes, including the rejected ones and why. How to read 401, 429 and type errors, check the clock and test commands from a prompt.

1 October 20267 min read
The monitoring settings of a HydroNode sensor with interval, thresholds and alert channelsThe monitoring settings of a HydroNode sensor with interval, thresholds and alert channels
Guide

Know when a sensor goes quiet

HydroNode learns how often each sensor reports and tells you when it is late or gone. Set up delayed and offline alerts, push and email, and automations that react.

27 September 20266 min read
The HydroNode incident feed with open warnings and resolved incidentsThe HydroNode incident feed with open warnings and resolved incidents
Guide

Anomalies without the noise: bands, targets and AI analysis

How HydroNode decides what is unusual, how to set your own ranges and the right sensitivity, and what the optional AI analysis adds on top.

22 September 20268 min read
HydroNode sensors as entities next to the HydroNode dashboardHydroNode sensors as entities next to the HydroNode dashboard
Integration

HydroNode in Home Assistant: entities, events and automations

Install the integration from HACS, create a token, and turn every HydroNode sensor into a native entity. Plus automations on anomalies and AI analyses.

18 September 20266 min read
A HydroNode sensor page receiving temperature and humidity from an ESPHome deviceA HydroNode sensor page receiving temperature and humidity from an ESPHome device
Integration

Send your ESPHome sensors to HydroNode

Keep your ESPHome YAML, add one external component and map each sensor to a HydroNode type. Secrets, commands and the details that save you a debugging evening.

13 September 20266 min read
A HydroNode sensor chart with temperature readings sent from an ESP32A HydroNode sensor chart with temperature readings sent from an ESP32
Tutorial

Your first ESP32 sensor with the HydroNode Arduino library

From an empty sketch to live charts: install the library, send a whole reading in one signed request, and switch a relay with typed commands.

9 September 20268 min read
The HydroNode dashboard with the nearest station, incidents and live chartsThe HydroNode dashboard with the nearest station, incidents and live charts
Getting started

Welcome to HydroNode: a tour for your first evening

What HydroNode does, where everything lives and which path fits your hardware. A walk through sensors, charts, incidents, Fleet and the apps, one stop at a time.

4 September 20267 min read