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Oscilloscope Clock
Monday, 10 September 2007
The hardware comprises of an Atmel microcontroller (AtMega8515), a dual DAC, 7805 regulator, and a DS1302 RTC.
Unfortunately, the software does not support DCF77 decoding (Europe's atomic radio clock) due to the limited program memory.
PCB closeup... S1 is used to set the time, and other options.
Circuit design and software from Frank Techniek.
Every workshop needs one of these! This 'Scope clock' uses a micro-controller driven design with a real-time clock back-up.
It can be connected any oscilloscope with an X-Y input (most 2 channel scopes have this capability).
Further details here...
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