DIY NFC Reader with ESP32

Building a DIY NFC Alarm Keypad with ESPHome and Home Assistant

In this project, I built a custom NFC reader for my home entrance. By using a simple key fob, I can arm or disarm my alarm system (managed via Alarmo) as I enter or leave. The system is based on an ESP8266 microcontroller, integrated seamlessly into Home Assistant using ESPHome. Hardware Components Microcontroller: ESP8266 (D1 Mini) NFC Module: PN532 NFC Board (connected via I2C) Indicator: RGB LED (for real-time status feedback) Power: Standard 5V USB Power Supply 1. ESPHome Integration The D1 Mini is flashed with ESPHome. Instead of managing complex code, I used a custom configuration to bridge the hardware with Home Assistant. ...

May 4, 2026
Home Assistant with Cloudflare Tunnel

Secure Remote Access to Home Assistant with Cloudflare Tunnel

In this article, we will explore how to securely expose Home Assistant to the outside world without opening any ports on your router, by leveraging the power of Cloudflare Tunnel. This solution is perfect if you want to monitor your systems (such as inverters or batteries) from the office in total safety. Prerequisites Before starting, it is essential to have a purchased domain (e.g., yourdomain.com). Based on testing, free domains often do not work correctly with Cloudflare’s Zero Trust services. ...

February 21, 2026