CP2102 module USB to 3.3V TTL
Description This is a USB 2.0 to 3.3V TTL UART 5PIN CP2102 Module Serial Converter. Works with 5V and 3.3V UART signals, 3.3V max 100mA output, 5V output (from USB). Compatible with Arduino, ESP8266, GPS modules, Bluetooth modules, RF serial transceiver modules, PIC, AVR, etc.
