The RN-42 Bluetooth Module provides a reliable method for creating a wireless serial communication interface between two devices such as a microcontroller, PC, cell phone, or another module. This module can pair up with devices supporting Bluetooth SPP (Serial Port Profile) to establish a serial interface. The RN-42 Bluetooth Module is breadboard-friendly and is compatible with all 5 V and 3.3 V microcontroller platforms.
Fully qualified Bluetooth 2.1/2.0/1.2/1.1 module provides compatibility with many devices
Low power consumption for long-lasting battery-powered projects
Auto-connect/discovery/pairing modes make connecting to other modules easy
LED indicators provide visual status of connection/mode
Voltage jumper selects for use with 5 V and 3.3 V microcontrollers
Remote control a robot via PC, cell phone, or another microcontroller
Measurement and monitoring systems
Industrial sensors and controls
Cable replacement (wireless serial interface)
This device supports Bluetooth Serial Port Profile (SPP). When connecting to another device please be sure your device supports SPP as well.
*Operating throughput and range may vary depending on environmental circumstances and RF interference.
Please note that this product is not backwards compatible with the retired Easy Bluetooth module.
2 x 7 dual row male header with 0.1" spacing
Jumper selectable default baud rates: 9.6 or 115.2 Kbps
Command-configurable baud rate from 1.2 to 921 Kbps
Range: approx. 35 - 50 feet line of sight indoors*
Voltage requirements: 5.0 VDC or 3.3 VDC
Current requirements (approx.): 5 mA sleep; 15 mA idle; 20 mA transmit; 50 mA max
Communication: 5 V/3.3 V asynchronous serial interface with RTS/CTS flow control from 1.2 - 921 Kbps
Dimensions: 2.33" x 1.16" x 0.45" in (59.18 x 29.46 x 11.43 mm)
Operating temp range: -40 to +185 °F (-40 to +85 °C)