I got a bluetooth sensor from this Chinese company. Model is BC417. The module has six pins:
- KEY
- RXD
- TXD
- 5.0
- 3.3
- GND
I'm totally newbie about GPIO and sensors, only got that module and a few cables. What should I do to start working with it? How should I plug it, and do I need any resistor? What libraries should I download?
At least I want to be able to emit anything through bluetooth or receive any kind of data from a mobile bluetooth device.