DCF77-Receiver

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This is a project to create a small DCF-77 receiver. The goal is to get familiar with designing SMD.

Planned features:

  • Receive and decode DCF-77 signals
  • Display time on 7-segment displays
  • USB port for power and programming
  • External connector for DCF signal
  • Display in local time or UTC
  • Correct display of leap seconds
  • PPS output ?
  • Ambient light sensor ?

Plan is to use a bootloader such as V-USB, and be able to use Arduino software.

About a decade ago I built such a receiver, in order to observe leap seconds. That design is based on an Atmel AT2313 and a Conrad DCF-77 module.

The old design looks like this:

DCF-RX-old.jpg DCF-RX-old-schema.png