Arduino Door Bell

Features - Garden Door Part

• button glows in warm white
• button shines in bright green if pressed
• operates independent of backend (only with 5V power supply)

Features - In House / Backend Part

• button press detection (debounced)
  • post http request to inform smart home system
  • switch relay to power up the transformer
    • transformer creates 8V to drive the ring mechanism

Overview Diagram

The final package

Thank you for providing these libraries:

• Debouncing: https://github.com/thomasfredericks/Bounce2
• Ethernet for ENC28J60: https://github.com/njh/EtherCard