FS1000A and XY-MK-5V 433MHz
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FS100A and XY-MK-5V are super cheap and super simple 433MHz modules. Some people report they work well, some that link is lost even at a range of few centimeters. I've decided to test that, and do a proper range test in open space.
With proper antennas, those little 433MHz modules can have a decent range. Who would expect that...
How FS1000A and XY-MK-5V work: • How they work? 433MHz radios for Arduino -...
#quadmeup #radio #arduino