Handheld 2.4 GHz spectrum analyzer in a cell phone



Handheld 2.4 GHz Spectrum Analyzer via HaD – Miguel writes:

After visiting some web pages about 2.4 GHz ISM band spectrum analyzers based on the CYWM6935 module, I tried to build my own analyzer, but with some improvements. The references I found on the net used the parallel port or a serial link to a host computer. I want the analyzer to be portable, and easy to transport, so I will use a microcontroller and a graphical LCD. I had also some old Nokia phones, so maybe I can use phone plastic box and build in LCD to make my own portable analyzer, but… Does it can be done? Let’s see…


Join 4,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

Learn “How Computers Work” with Bill Gates, Ladyada and more – From Code.org !

CircuitPython in 2018 – Python on Microcontrollers is here!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/

Maker Business — Prototyping PCBs with Particle, a guide from a pro in the field #makerbusiness

Wearables — Learn about stretch

Electronics — Even lower power!

Biohacking — Nectome’s Brain Preservation and Backup Service Plan

Python for Microcontrollers — Scott ([email protected]) on the Amp Hour podcast!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !


  1. Brilliant!

  2. I love it! I’d thought before that it would be really nice to have a wavebubble in an old phone like this, but it would be a big task to get it all crammed in there.

Sorry, the comment form is closed at this time.