User Manual

RN41/42 Evaluation Kit User’s Guide
DS50002325A-page 28  2014 Microchip Technology Inc.
FIGURE 2-7: PAIRING - BLUETOOTH
®
COM PORT SETTINGS
If the remote Bluetooth device does not require authentication, a connection can occur
without the pairing process. However, the Bluetooth specification requires that if either
device involved in the pairing process requires authentication, the other device must
participate to ensure a secure link. The RN41/RN42 modules default to an Open mode,
such that the module does not require authentication. For more information on using
pass keys, see Section 2.10 “Security Modes”. The module may use simple pairing
(SSP) if it attempts to pair with devices that support the Bluetooth specification version
2.1 + EDR. SSP does not require the user to remember the pin code, but it asks to con-
firm the 6-digit number if the device has a display capability.
2.9.3 Connecting
In most cases, the user connects from another device to the RN-41-EK or RN-42-EK
as an outgoing Bluetooth connection. User can also make an incoming connection in
which the evaluation board initiates the connection to the remote device.