Подключаю по схеме.
VCC ----> 3.3V Power supply .
GND ----> Ground of power supply
CH_PD ----> HIGH (3.3V)
GPIO2 ----> HIGH (3.3V)
GPIO15 ----> LOW (GND)
GPIO0 ----> HIGH or Floating for AT Mode (3.3V) [ if you want to flash completely different firmware then you must connect it to ground ]
Как...