Want to learn microcontrollers and signals

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Learning about microcontrollers and programming is essential for building robotics and understanding wireless signals. The user is exploring various Parallax kits, including the StampWorks Experiment Kit and the Basic Stamp Discovery Kit, but is unclear about the differences between Basic Stamp, Propeller, Javelin Stamp, and Java. The Parallax Propeller is noted as particularly interesting for its capabilities. For further understanding of signals, a recommended resource is the DSP guide available online. Engaging with these kits and resources will provide a solid foundation in microcontroller technology and signal processing.
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i am interested in starting to learn microcontrollers and programming, such as building robotics and to learn more about wireless signals, such as how you can talk into a cell phone and have all that information being sent to another phone through a tower in real time.
i was looking at kits such as (cant post links because of 10 post rule, type these into google and it will come up):
parallax stampworks expirement kit

parallax basic stamp discovery kit

but am confused as to what the difference between basic stamp,propeller,javelin stamp,java and I've seen a few others as well. any suggestions and more info would be awesome.
Thank You!
 
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