/arduino-doorbell

simple sketch to create a wireless doorbell

Primary LanguageC++GNU General Public License v3.0GPL-3.0

Arduino Doorbell

Simple project to adapt an oldschool solenoid (battery powered) doorbell to a mains powered, wireless doorbell.

Specs

  • 433 MHz receiver
  • Arduino nano clone (Atmel atmega328pb)
  • 5V solenoid wired to Relay NO
    • Off = HIGH
    • Ring = LOW
  • Kerui KR-F53-B transmitter board
  • No-name receiver board ($2 on ebay)

Wiring Reminders

  • Single 5V across all modules in parallel
  • Ground across all modules in parallel
  • Single breakaways for signal wiring (relay & transmitter)
  • Relay closes circuit across solenoid in doorbell (wired to Normally Opened)

Circuit Diagram

⚠️ I never said I was good at this

  • I suspect that your implementation will be different, therefore this may not be of help to you.
  • There's both an SVG and JPEG of the diagram in the repo, should you need it.