ESP32-WROOM-32D-PE4302 ESP32-WROOM-32D-PE4302 Command list h, // show help ho,2,999 //4dB change every 2second, iterate 999times tp,30,1 //+2dB every 30second-interval, iterate 1time set,28 //set to 28dB onoff,32,10,1000,5 //switch attenuator, 10msOFF 1000msON , iterate 5times Serial 115200