studentkra

Most likely, the CP2102 driver is already installed in Debian. For example of a Python script:

import serial
ser = serial.Serial('/dev/ttyUSB0', 115200)
ser.write("A1")
#A1 select antenna number 1

My project of HMC253 and ESP8266 antenna switch on Github.

Not tested yet ))

I post firmware to control PE4302 attenuator via ESP8266 on GitHub now.

https://github.com/studentkra/PE4302_attenuator

I received an HMC253 (DC-2.5 GHz) board today for $8. I also have an ESP8266 for $2. These are the cheapest materials from which you can assemble an antenna switch controlled via USB.

Yes. This is bad frequency! Your should not listen it (((