att6000_control control cheap digital attenuator via python https://www.banggood.com/6G-Digital-Programmable-Attenuator-30DB-Step-0_25DB-OLED-Display-CNC-Shell-RF-Module-p-1648810.html?rmmds=search&cur_warehouse=CN HOW-TO clone rep ( install pySerial ) run "att6000control.py"