https://github.com/ronibandini/esp32n8nbutton

Trigger N8N workflows from ESP32 button using HTTP GET
https://github.com/ronibandini/esp32n8nbutton

Last synced: 4 months ago
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Trigger N8N workflows from ESP32 button using HTTP GET

• Host: GitHub
• URL: https://github.com/ronibandini/esp32n8nbutton
• Owner: ronibandini
• License: mit
• Created: 2025-06-15T16:25:57.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2025-06-15T16:26:47.000Z (about 1 year ago)
• Last Synced: 2025-06-15T17:28:48.455Z (about 1 year ago)
• Size: 1.95 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# ESP32N8NButton

Trigger [N8N](https://n8n.io/) workflows from an ESP32 device button using a simple HTTP GET call 

Roni Bandini, Buenos Aires, Argentina, June 2025

![ESP32PhysicalButton](https://github.com/user-attachments/assets/a3db4a44-663e-46c5-b1c5-b05d09122f68)

## 📦 Overview

`ESP32N8NButton` is a lightweight Arduino library for ESP32 that sends HTTP GET requests to a user-defined webhook URL. 

It's designed to trigger a N8N node using a button. 

Great for:

- Physical IoT triggers for workflows

- Simple smart buttons

- ESP32-to-N8N communication without external services

## 🔧 Features

- Sends HTTP GET request on button press (GPIO)

- WiFi connection via built-in ESP32 WiFi

- Simple API (`begin()` + `handle()`)

- Designed to work with N8N webhooks

### 📥 Installation

1. Install with Arduino IDE, Sketch, Include library, Add Zip Library

2. Open the BasicWebHook.ino example

3. Edit WiFi credentials, Webhook URL and GPIO 

4. Press the button