- Category:
- SCM
- Tags:
-
[WORD]
- File Size:
- 39kb
- Update:
- 2012-11-26
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- Uploaded by:
- wneworld
Description: 1KHz and 500Hz with the P1.0 output audio signals to drive speakers, as alarm signals to require 1KHz signal ring 100ms, 500Hz signal ring 200ms, alternately, P1.7 take control of a switch, when the switch is closed ring alarm signal, when switch off warning signals to stop, to compile the program.
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