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SparkFun Bluetooth Modem - BlueSMiRF Silver

SparkFun Bluetooth Modem - BlueSMiRF Silver

The BlueSMiRF Silver is the latest Bluetooth wireless serial cable replacement from SparkFun Electronics! This version of the popular BlueSMiRF uses the RN-42 module which has a bit less range than the RN-41 module used in the BlueSMiRF Gold. These modems work as a serial (RX/TX) pipe. Any serial stream from 2400 to 115200 bps can be passed seamlessly from your computer to your target.

The remote unit can be powered from 3.3 to 6 V for easy battery attachment. All signal pins on the remote unit are 3 to 6 V tolerant. No level shifting is required. Do not attach this device directly to a serial port. You will need an RS-232 to TTL converter circuit if you need to attach this to a computer.

Unit comes without a connector. This is a single unit only. We recommend the purchase a USB dongle to interface to a computer if you do not already have access to a computer with Bluetooth connectivity.


  • v6.15 Firmware
  • FCC Approved Class 2 Bluetooth Radio Modem
  • Extremely small radio - 0.15 × 0.6 × 1.9 inches
  • Very robust link both in integrity and transmission distance (18 m)
  • Hardy frequency hopping scheme - operates in harsh RF environments like WiFi, 802.11g, and Zigbee
  • Encrypted connection
  • Frequency: 2.402 to 2.480 GHz
  • Operating Voltage: 3.3 to 6 VDC
  • Serial communications: 2400 to 115200 bps
  • Operating Temperature: -40 to 70 °C
  • Built-in antenna

Dimensions: 45 × 16.6 × 3.9 mm



SKU:  SFC-058

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