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elksmart/ccrustar NEC commands
Another piece of information: those numbers are (light on, light off) pairs and receivers are very tolerant. If you can graph these, that's how you should compare them. The NEC protocol is…
elksmart/ccrustar NEC commands
Try different computers and USB ports, the gadget can be annoying. It has to quite visibly flash green when transmitting.
Also remember to use the --nec switch.
Otherwise I have no idea.