Most general info is as for the HC-05 – see our page here. HC-05 vs HC-06 The HC-06 is a 4 pin slave on only variant, whereas the HC-05 can be configured to be a master or slave Bluetooth device. Parts HC-06 Bluetooth Serial Transceiver, you want the HC-06 that is mounted to the 4 […]

The HC-06 is the slave only version of the HC-05. It can also be configured using AT commands. Config settings The config settings are non-volatile (they are remembered when power is lost). Sending config commands to the HC-06 using a PC using a USB to serial cable You might want to do this so you […]

Transparent link using two HC-05’s Configure one as the slave, by following the instructions on our other page over here. Configure the other as master, using these config commands: Return the HC05 to its default manufacture settings (hold button when sending): AT+ORGL\r\n Set role to Master: AT+ROLE=1\r\n Change comms settings: AT+UART=115200,0,0\r\n Changes the baud rate […]

Config settings The config settings are non-volatile (they are remembered when power is lost). Sending config commands to the HC-05 using a PC using a USB to serial cable You might want to do this so you can configure the HC-05 without using an Arduino, or even if you want to connect your computer to […]

The HC-05 is widely used as a cheap simple just works transparent Bluetooth serial link. It can be configured to be host or slave, which means you can use two of them to create a paired link that passes your UART comms over Bluetooth. Parts HC-05 Bluetooth Serial Transceiver, you want the HC-05 that is […]