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This is the same Roving Networks Bluetooth module that you already
know and love, but it comes firmware-configured for the HID protocol.
HID, or "Human Interface Device," is the communication protocol used for
computer peripherals such as keyboards, mice and joysticks. This makes
the RN-42-HID a simple and powerful tool for creating wireless
peripheral devices which can be universally recognized and used without
the installation of special drivers. The manual included in the
documentation below goes into more detail about the Bluetooth HID
The RN-42 is perfect for short range, battery powered applications.
The RN-42 uses only 26uA in sleep mode while still being discoverable
and connectable. Multiple user configurable power modes allow the user
to dial in the lowest power profile for a given application.The RN-42 is
even FCC and Bluetooth SIG certified making it a complete embedded
Fully qualified Bluetooth module
Over air data rate of 721kbps to 2.0Mbps
Low power sleep mode
Bluetooth Technology v2.0 compatible
Class 2 power output