Bluetooth Modem - Bluetooth Mate Silver

SparkFun Bluetooth Modem - Bluetooth Mate Silver
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Price: £26.28
(£21.90 + VAT)
Stock Quantity: 3
Model: WRL-12576
Manufacturer: SparkFun
Average Rating: Not Rated


Bluetooth Modem - Bluetooth Mate Silver

The Bluetooth Mate Silver is very similar to Sparkfun BlueSMiRF Silver modem, but it is designed specifically to be used with our Arduino Pro, Arduino Pro Mini and the new Arduino UNO Ethernet boards. These modems work as a serial (RX/TX) pipe, and are a great wireless replacement for serial cables. Any serial stream from 1200 to 115200bps can be passed seamlessly from your computer to your target.

Bluetooth Mate Silver has the same pin out as the FTDI Basic 5V, FTDI Basic 3.3V, HT Bluetooth Module and can plug directly into an Arduino Pro, Pro Mini 5V, Pro Mini 3.3V  Uno Ethernet Pro. Because we've arranged the pins to do this, you cannot directly plug the Bluetooth Mate to an FTDI Basic board (you'll have to swap TX and RX).

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. If you need longer range, check out the Bluetooth Mate Gold.

The Bluetooth Mate has on-board voltage regulators, so it can be powered from any 3.3 to 6VDC power supply. We've got level shifting all set up so the RX and TX pins on the remote unit are 3-6VDC tolerant. Do not attach this device directly to a serial port. You will need an RS232 to TTL converter circuit if you need to attach this to a computer.

Note: The hardware reset pin of the RN-42 module is broken out on the bottom side of the board. This pin is mislabeled as 'PIO6', it is actually PIO4. Should you need to reset the Mate, pull this pin high upon power-up, and then toggle it 3 times.


  • Designed to work directly with Arduino Pro's and LilyPad main boards
  • v6.15 Firmware
  • FCC Approved Class 2 Bluetooth® Radio Modem!
  • Low power consumption : 25mA avg
  • Hardy frequency hopping scheme - operates in harsh RF environments like WiFi, 802.11g, and Zigbee
  • Encrypted connection
  • Frequency: 2.4~2.524 GHz
  • Operating Voltage: 3.3V-6V
  • Serial communications: 2400-115200bps (default 115200)
  • Operating Temperature: -40 ~ +70C
  • Built-in antenna


  • Board: 1.75x0.65"



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Bluetooth Modem - Bluetooth Mate Silver
Click to enlarge
Bluetooth Modem - Bluetooth Mate Silver
Click to enlarge
Bluetooth Modem - Bluetooth Mate Silver
Click to enlarge
Bluetooth Modem - Bluetooth Mate Silver
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