Nord german version of cuckoo clock builded with an Arduino Nano, DCF receiver and 3D prints.
This project aims to build a clock that uses AM radio waves to mantain a accurate timing on an Arduino Nano board and then add some functionality like simulating the quack of a duck with a passive buzzer and some servo motor to move the cuckoo "in this case is a duck ;-)"
- Arduino Nano
- DCF receiver
- 4 digit 7 segment display
- servo motor 9g SG90
- 100 microFarrad capacitor
- passive Buzzer
- 1 Resistor (10k Ohm)
- 8 Resistors (220 Ohm)
- wires (M-M, F-M, F-F)
- 3D Printer (optional)
- Arduino IDE
- Slicer (optional)
Diagramms ... follows....
The following table contains a list of interfaces that goes connected to the Arduino board.
| Sensor/Aktor | Pin | Pin on Arduino | Pin on 4 Digit |
|---|---|---|---|
| Buzzer | + | 12 | x |
| Buzzer | - | GND | x |
| Servo motor | + | 5V | x |
| Servo motor | Signal | 11 | x |
| Servo motor | GND | GND | x |
| DCF | + | 3.3V | x |
| DCF | Signal | 2 | x |
| DCF | GND | GND | x |
| 74HC595 | VCC | 5v | x |
| 74HC595 | QA | x | 11 |
| 74HC595 | SER | D3 | x |
| 74HC595 | OE | GND | x |
| 74HC595 | RCLK | D4 | x |
| 74HC595 | SRCLK | D5 | x |
| 74HC595 | SRCLR | 5v | x |
| 74HC595 | QH' | x | x |
| 74HC595 | QB | x | 6 |
| 74HC595 | QC | x | 4 |
| 74HC595 | QD | x | 2 |
| 74HC595 | QE | x | 1 |
| 74HC595 | QF | x | 10 |
| 74HC595 | QG | x | 5 |
| 74HC595 | QH | x | 3 |
| 74HC595 | Ground | GND | x |
| 4 Digit 7seg | 1 | x | x |
| 4 Digit 7seg | 2 | x | x |
| 4 Digit 7seg | 3 | x | x |
| 4 Digit 7seg | 4 | x | x |
| 4 Digit 7seg | 5 | x | x |
| 4 Digit 7seg | 6 | D9 | x |
| 4 Digit 7seg | 7 | x | x |
| 4 Digit 7seg | 8 | D8 | x |
| 4 Digit 7seg | 9 | D7 | x |
| 4 Digit 7seg | 10 | x | x |
| 4 Digit 7seg | 11 | x | x |
| 4 Digit 7seg | 12 | D6 | x |
Important connection details: When using the modul from ELV the signal output isn't connected directly to arduino, instead it's connected to a Pull-Up Resistor with 10kOhm and it's configured as inverted.
References used for information gathering and entrypoint to develop this project could be found in the following links.
- Physikalisch-Technische Bundesanstalt => https://www.ptb.de/cms/en/ptb/fachabteilungen/abt4/fb-44/ag-442/dissemination-of-legal-time/dcf77.html
- DCF77 Repo => https://github.com/thijse/Arduino-DCF77
- Scheme connection => https://netcoast.ch/DCF77/DCF77.html
- Receiver modul used was ELV DCF-2
In the "3d" folder is a STL object ready to sclice and print. Any new modification of the 3d model can be found on my page => https://www.thingiverse.com/thing:6643637
The professor duck 3D model comes from this repo => https://www.thingiverse.com/thing:1115584
Photos and video related to project could be found inside "media" folder
Dedicated to Kuon