I have a Funduino joystick shield and it features a 4 pin bluetooth socket in the top right hand corner (just above the
For some reason, on eBay, 6 pin bluetooth modules are cheaper and more common than 4 pin bluetooth modules.
The joystick shield's 4 pin socket is labelled
R T - +. Obviously these correspond with
VCC on the bluetooth module.
I was wondering:
- What is the difference between the 4 pin and 6 pin modules?
- Can I use a 6 pin module in the four pin socket on the joystick shield?
- What is the function of additional
ENpins on the bluetooth module?
- Are these two additional pins necessary as other modules do not have them?