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 pin breakout/interfacing board
LED
Fast flash – HC-06 is in running mode, ready to be connected to
On constant – linked to remote device (transparent serial bridge).
USEFUL?
We benefit hugely from resources on the web so we decided we should try and give back some of our knowledge and resources to the community by opening up many of our company’s internal notes and libraries through mini sites like this. We hope you find the site helpful.
Please feel free to comment if you can add help to this page or point out issues and solutions you have found, but please note that we do not provide support on this site. If you need help with a problem please use one of the many online forums.