Arduino 2.4 GHz Spectrum Analyser

This article describes a simple spectrum analyser for the 2.4 to 2.5 GHz Wi-Fi band. It's based on the Cypress CYWM6935 Wireless Radio Module. Although the manufacturer doesn't recommend it for new commercial projects, it is still widely available from eBay suppliers and Farnell here in the UK. The module has 1 MHz channel spacing which is a bit 'coarse' for a full-blown spectrum analyser but it's good enou ...

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