RF scanner: Difference between revisions
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This signal looks like [[space-len]] encoding. | This signal looks like [[space-len]] encoding. | ||
I started a git repository for the scanner [https://github.com/gnulnulf/rftrx] | I started a git repository for the scanner [https://github.com/gnulnulf/rftrx https://github.com/gnulnulf/rftrx] | ||
Latest revision as of 19:35, 13 October 2015
Ideas to create a universal RF scanner.
OOK on off keying Every frame seems to start with a large pulse or a large space. This generates a start condition. The pulsewitdh is measured and the smallest pulse above the minimal pulsewith is used as base T. The rest is simply 1T 2T etc. for example:
433A 66 9340 408 F191519141519191519151515191919191514191515151519191915151519151510
Receiver 433A got 66 pulses after a gap of 9340 uS. a "1" is 408uS. This signal looks like space-len encoding.
I started a git repository for the scanner https://github.com/gnulnulf/rftrx