Angry Badger
Member
Hi,
I'm building a PIC based clock. It works ok. I'm now adding an alarm setting function. Thing is I presently have three external buttons, one to enter the 'set time' mode, and two to increment the hours and minutes. But I'm struggling, I could do with at least another button - 'set alarm time'.
If you've built a PIC clock with alarm how many buttons did you use? Should three be enough to achieve the required functions with perhaps some slightly more complicated code? It would be easier with four but I would have to use an extra ic (4017) to release some spare input pins. I've only one spare pin and I intend to use that for the alarm sounder.
**broken link removed**
**broken link removed**
Thanks.
I'm building a PIC based clock. It works ok. I'm now adding an alarm setting function. Thing is I presently have three external buttons, one to enter the 'set time' mode, and two to increment the hours and minutes. But I'm struggling, I could do with at least another button - 'set alarm time'.
If you've built a PIC clock with alarm how many buttons did you use? Should three be enough to achieve the required functions with perhaps some slightly more complicated code? It would be easier with four but I would have to use an extra ic (4017) to release some spare input pins. I've only one spare pin and I intend to use that for the alarm sounder.
**broken link removed**
**broken link removed**
Thanks.