Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Nixie clock with DCF and alarm

Status
Not open for further replies.
V

Vermes

Advanced Member level 4
Advanced Member level 4
Joined
Aug 2, 2011
Messages
1,163
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,316
Activity points
22,318


The system of the clock was based on microcontroller '51 AT89C51. Source code consists of few hundreds lines of code in Assembler. Lamps are multiplex controlled with a frequency of 1KHz. Decoder BCD/1 of 10 type 74141 and high voltage transistors control the lamps. Displays are powered from a converter on NE555. DCF receiver was made based on U4221B. Functions can be selected by a switch.

Functions:
  • alarm
  • manually set time
  • synchronization DCF 77
  • display time UTC




Link to original thread (useful attachment) – Kolejny zegar Nixie z DCF i budzikiem.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top