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  Astronomy: Astro Clock 
 

 

PIC16F877A Astro Clock
 
20.1 MHZ Radio Astronomy Receiver with LCD & A/D
 
HF Receiving Current/Voltage Balun
 
Antenna Matching Balun for QRP Radios
 
HF Antenna Combiner/Splitter
 

 

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 PIC16F877A Astro Clock
 

Astro Clock
 

 

After making Galileo Receiver for Jupiter observation, I have been looking for a various PIC based projects for a suitable, simple clock for Astro timings. I came across one built by Alex which uses PIC16F877A. I decided to make one for my own purpose and place the project here to help others build it.

You may visit Alex's web site for more info but I try to provide information related to my own design and assembly of Astro Clock  

Astro Clock is a multi-purpose time keeping device::

  1. Uses single PIC16F877A for calculations
  1. It has 16 timers that can be independently paused and restarted, and can run forward or backward.
  1. 16 alarms with configurable sounds and actions
  1. Timers can show Earth, Mars, Jupiter, etc. times at the same time
  1. Simultaneous 24-hour and Julian-time decimal display on 16x2 LCD
  1. All changes in configuration can be done from the device's 4X4 keyboard - no computer necessary.
  1. External 12VDC or internal 9V rechargeable battery power.
  1. Front panel alarm audio, LCD brightness POTs and Reset button.
  1. While on Battery, LCD is put off to save power

 

 

 Astro Clock
 

Front View

click the picture to enlarge
 

Open View

click the picture to enlarge
 

4X4 Keyboard

click the picture to enlarge
 

 

 Astro Clock Documents & Schematic
 
Technical Information Doc.   
   

 

Schematic  JPG
 

 

Setup information
Coming Soon
 

 

Project Parts List & Schematic
    

 

PIC16F877A Firmware
 

 

 Link for Radio Astronomy Clock
Alex's Web Site
 
 
 

 

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