On Sat, May 13, 2023 at 05:18:53PM +0200, Sagar Acharya wrote: > Yep. That is true. I didn't think of that at all! But then, why do current > WiFi, etc. work at 2.4GHz, if device speeds aren't at those levels?
The choice of radio frequency will be based on suitability (available bandwidth, propagation characteristics etc.) and regulatory matters (world-wide availability etc.). The 5GHz band is also widely used now. Typically the lower layers of the protocol stack (including the radio for wireless and the electrical interface for wired) will use a dedicated chip set, so the microprocessor device need only concern itself with higher level data. For low speed systems there are even chip sets (e.g. WIZnet [1]) which offload as high as the TCP layer, though these are less flexible than handling TCP/IP in software. David [1] https://www.wiznet.io/
