| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
CH340 connect to ESP8266 (upload sketch) | OFF | OFF | OFF | OFF | ON | ON | ON | NoUSE |
CH340 connect to ESP8266 (connect) | OFF | OFF | OFF | OFF | ON | ON | OFF | NoUSE |
CH340 connect to ATmega328 (upload sketch) | OFF | OFF | ON | ON | OFF | OFF | OFF | NoUSE |
Mega328+ESP8266 | ON | ON | OFF | OFF | OFF | OFF | OFF | NoUSE |
All modules work independed | OFF | OFF | OFF | OFF | OFF | OFF | OFF | NoUSE |