My comment is about Version 4.2 of the bluetooth driver I found.
Not sure how to directly send directly to Brett (who I see in this form)
// Driver contributed by TinyCLR communitity members Eduardo Velloso (@ eduardo.velloso) and Brett Pound (@ Brett).
namespace Gadgeteer.Modules.GHIElectronics
The error is minor but Commands can be ‘fussy’, so I thought I would mention what I found.
/// <summary>
/// Sets the PIN code for the Bluetooth module
/// </summary>
/// <param name="pinCode"></param>
public void SetPinCode(string pinCode)
{
//this.serialPort.Write("\r\n +STPIN=" + pinCode + "\r\n"); <<< Is this line in error? (There is a space between "\r\n +STPIN=")
this.serialPort.Write("\r\n+STPIN=" + pinCode + "\r\n"); <<<Space removed
}