... 3.3v logic level VCC,GND,TXD,RXD sampling workable Bluetooth TTL module3.3v logic levelVCC,GND,TXD,RXDAbout Sinforcon Sinforcon ... , USB to Audio cable. The chips are availavble for PL2303, CP2102, FT232RL, ZT213. SP485, MAX3232, CM119, etc. These products are widely used in ...