: Finer steps (as low as 10Hz) and improved SSB (Single Sideband) tuning logic. Better Display
: Many ATS-20+ models shipped with Arduino Nano clones that have faulty USB ports or incompatible CH340 drivers. If your computer doesn't recognize the radio, you may need to replace the Nano or use an external programmer. ats20 firmware
: Put all files ( esptool.exe , Flash.bat , and .ats files) in one folder. Run : Double-click flash.bat . : Finer steps (as low as 10Hz) and