RF scanner: Difference between revisions
Jump to navigation
Jump to search
Created page with "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 ..." |
(No difference)
|
Revision as of 12:39, 16 August 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.