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Originally Posted by oneohthree
on those two you missed the semicolon. As for the rest, try simple code, 4-5 preambles and a byte to see if you have good communication. Then try two bytes different this time. Your code needs a lot of examination and right now I can't read it.
Ioannis
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Should I change my preamble to a different byte such as $66, $66, $66, $66, $bb,... or should I increase the size?
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Preamble byte has to be an equal number of 0's and 1's equally spaced. $66/$BB don't work, not equally spaced.
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Ok, I guess I will keep $55 and $aa. But, I do not understand why my reverse link (315 MHz) works only for some combinations or not at all for other combinations, even though I am sending it 50 times.
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What combo works, and which don't...
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In the receiver code I posted in post #6 only a code of 1101 works.
In the receiver code I posted in post #7 1100, 0101, 0100 works but not 1101. In all these cases the forward link (434 MHz) works all the time (in the cases where the first two bits (address) are different I changed the two bits (B0, B1) that are hardcoded in the code so that everything will work) but the reverse link (315 MHz) works only for the combinations I specified above.
Last edited by oneohthree; - 18th April 2007 at 17:34.
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I suspect, in fact I'd bet on, a programming problem, some sort of logic flow problem somewhere. I had a feeling way back when, that all this bit changing was going to cause problems and there had to be an easier way of doing this.
And again, I'd suggest just sending straight numbers back and forth, rather than changing bits around and the like, 'cause you're writing the program now and everything is clear to you. But what happens when you've let the program go for a couple of months and you come back to it to change something. Might not be so clear then why you did whatever...
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