Antenna size for decent read range on an xNT?
I'm working on making a setup to lock/unlock my car doors with my xNT, however, I have yet to find an antenna that will read it from anywhere but touching it. I'm using a keyduino for this project, and even the giant credit card sized antenna will only pick it up when I'm dead on it, and in a corner of the coil. Anyone else have this issue?
Im thinking about just getting a custom pcb printed with a coil on it, but it is going to take a lot of research to figure out exactly how big I can make it without interfering with the actual data transmission.
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