30 lines
567 B
Text
30 lines
567 B
Text
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SIGNAL
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signal i s two times in a row with a "low" pause of 8192us between them
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The message buffer is 9 bytes long
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Each signal starts with a preampble, the data and a postamble
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PREAMBLE
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consists of two "one"-bytes
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DATA
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9 bytes
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POSTAMBLE
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consists of one "zero"-byte
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A "one" bit is sent over the air as:
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high for 512us
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low for 1024us
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high for 512us
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A "zero" bit is sent over the air as:
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low for 512us
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high for 1024us
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low for 512us
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1 byte = 8*(512+512+1024)us = 16384us
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one signal = 2+9+1 bytes = 12 bytes = 196608us
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signal + 8192 + signal = 401408us = 401.408ms
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