Hc-05 can be a terribly cool module which might also add -way complete-duplex wi-fi practicality in your comes. you may use this module to talk between 2 micro controllers like arduino or communicate with any device with Bluetooth practicality sort of telephone or computer computer. There area unit numerous robotic applications that location unit already available that makes this approach lots simpler. The module communicates with the help people art at 9600 information measure for that reason its easy to interface with any micro controller that supports us artwork. we are able to conjointly piece the default values of the module by way of victimization the command mode. therefore, if you looking for a wireless module that might switch statistics out of your laptop or movable to micro controller or contrariwise then this module may be the proper opportunity for you. but do not count on this module to switch multimedia machine like photographs or songs; you’ll likely get to go-test the csr8645 module for thatch this text.