A popular project among microcontroller aficionados is to build a radio-controlled clock. Tiny receiver boards are available, with a pre-adjusted ferrite antenna, that receive and demodulate the DCF77 ...

[Brett] just completed his DCF77 Master Bracket Clock, intended to be a backup to an old logic controlled clock he made. For our readers that don’t know, DCF77 is a German longwave time signal whose ...

DCF77 is a radio signal is a 77.5 kHz frequency that is reduced from 100% to 25% to create the protocol. This signal is very accurate sending the legal time of Germany CET or CEST and is emitted ...

The Arduino Nano Every board is used to decode a DCF77-time signal received with a DCF77-ferrite receiver and transmits time and date with a HC-12 module in the air as text. The DCF77-signal is a ...

The project is a DCF77 radio clock receiver that uses USB to connect to the host computer along with a small 8-pin ATtiny45 microcontroller and smart firmware AVR-USB & AVR-CDC for programming. The ...

Simulators and reliable signal sources simplify testing during circuit and software development. Here is a small, easy-to-build module that simulates demodulated DCF77 time signal pulses.

Needing to drive two devices with a DCF 77 signal, I made an NTP client time server with two output channels. Elektor published in its March-April 2018 issue an excellent article describing a module ...

If you have already studied the circuit diagram, you will have noticed that the speaker is connected to 2 PWM pins of the Arduino. Here is a statement from the author of the Talkie.h library: >> On ...

You can win any argument about the time when you have a radio controlled watch. Or, at least, you can if there’s any signal. [Henner Zeller] lives in a place where there is no reception of the DCF77 ...

Abstract: The DCF77 signal is used to carry out the information of precise time for long distances. Standard DCF77 receivers consist of AM long wave receiver circuit, connected to a data processing ...

A clock design in a FPGA written mostly in VHDL. I have two designs available. Both are synthesized to a Altera MAX FPGA EPM1270T144C5, JTAG programmable, Quartus Design and simulated in Modelsim, but ...