HC-05 Wireless Bluetooth Module

Tscinbuny HC-05 RF Wireless Bluetooth Transceiver Slave Module HC05 Module For Arduino Smart Robot Car Programmable Robotic Project DIY Electronics Parts PARAMETERSProduct Model: HC-05Working frequency: 2.4GCommunication interface: UART 3.3V TTL levelWorking voltage: 3.0~3.6VRSSI support: Not supportedCommunication level: 3.3VTransmitting power: 4dBmReference distance 10 metersAir Speed: 2MbpsAntenna interface: Built-in PCB antennaCommunication cable: 15mAReceiving sensitivity:-85dBm @ 2MbpsWorking humidity: 10%-90%Storage temperature:-40C~+80°CWorking temperature: -25C~+75C DESCRIPTIONPIN:KEYVCCGNDRXDTXDSTATESTATE is the Bluetooth status pin,Output low when not connected, and high when connected KEY is the pin for the AT instruction.which has the same function as the key。 Button:Pressing the key is equivalent to pulling the 34-pin high/low, and it is used with the AT command. (Most AT commands require it is effective to send by pressing the button.) Voltage:input voltage: 3.2-6V, the