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Step 3Display every tenth second
The display shown in the figure is more realistic of the sort of performance obtainable from the clock: Update every ten seconds.
The digits have been programmed to be spaced apart to be nicer, visually.
All the programs which produced these displays have been included in a zip file in the last step of this instructable. The circuit diagram is included in ASCII form in the asm files.
The microcontroller was a Microchip 12F510, an eight lead microcontroller which was clocked at 32.768 KHz using a small crystal from a defunct watch. Just one output line was used, leaving two I/O lines and one input line free for other uses.
The digits have been programmed to be spaced apart to be nicer, visually.
All the programs which produced these displays have been included in a zip file in the last step of this instructable. The circuit diagram is included in ASCII form in the asm files.
The microcontroller was a Microchip 12F510, an eight lead microcontroller which was clocked at 32.768 KHz using a small crystal from a defunct watch. Just one output line was used, leaving two I/O lines and one input line free for other uses.
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