---
title: "envObserver"
url: "https://maker.wiznet.io/Hannah/projects/envobserver/"
markdown_url: "https://maker.wiznet.io/Hannah/projects/envobserver/md"
type: "UCC: User Created Content"
author: "Erik Dorstel"
author_url: "https://github.com/ErikDorstel/envObserver"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "Erik Dorstel"
original_url: "https://github.com/ErikDorstel/envObserver"
published: "2024-07-01"
language: "en"
likes: 0
views: 440
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# envObserver

> envObserver is an ESP32-based environmental monitoring system designed to measure environmental data using various sensors and allow monitoring over a network.

Original author: Erik Dorstel (source: https://github.com/ErikDorstel/envObserver)

## Article

ESP32 based environment monitor

#### Features

<https://github.com/ErikDorstel/envObserver#features>

- uses W5500 PHY/MAC for 100Base-T ethernet

- uses ADS1115 16Bit ADC with transformer and rectifier

- measures peak voltage, rms voltage and frequency

- uses BME280 as environment sensor

- uses LTV845 optocoupler for the digital inputs

- simple HTTP polling interface

- two channel relay output

#### Development Hardware

<https://github.com/ErikDorstel/envObserver#development-hardware>

[![IMAGE ALT TEXT HERE](https://github.com/ErikDorstel/envObserver/raw/main/documentation/envObserver_a.png)](https://github.com/ErikDorstel/envObserver/blob/main/documentation/envObserver_a.png)

#### Schematic

<https://github.com/ErikDorstel/envObserver#schematic>

[![IMAGE ALT TEXT HERE](https://github.com/ErikDorstel/envObserver/raw/main/documentation/envObserver_b.png)](https://github.com/ErikDorstel/envObserver/blob/main/documentation/envObserver_b.png)

#### Water Sensor

<https://github.com/ErikDorstel/envObserver#water-sensor>

[![IMAGE ALT TEXT HERE](https://github.com/ErikDorstel/envObserver/raw/main/documentation/waterSensor.png)](https://github.com/ErikDorstel/envObserver/blob/main/documentation/waterSensor.png)

#### Web UI

<https://github.com/ErikDorstel/envObserver#web-ui>

[![IMAGE ALT TEXT HERE](https://github.com/ErikDorstel/envObserver/raw/main/documentation/webui.png)](https://github.com/ErikDorstel/envObserver/blob/main/documentation/webui.png)

---

Source: https://maker.wiznet.io/Hannah/projects/envobserver/