Overview

The BlueSMiRF Silver is a Bluetooth wireless serial link 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. These modems work as a serial (RX/TX) pipe. Any serial stream from 2400 bps to 115200 bps can be passed seamlessly from your computer to your target.

The modem can be powered from 3.3 V to 6 V for easy battery attachment. All signal pins are 3 V to 6 V tolerant. No level shifting is required.

For more information and resources to help you use the BlueSMiRF Silver, see the guide on SparkFun’s site. The RN-42 Bluetooth module datasheet and the Roving Networks Blueooth product user’s guide can be found under the Resources tab.

Warning: 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.

This unit does not include any additional hardware or connectors. The 0.1″-spaced holes work well with our breakaway male header pins.

Features

  • FCC approved Class 2 Bluetooth radio modem
  • Size: 0.15″ × 0.63″ × 1.65″
  • Operating voltage: 3.3 V to 6 V
  • 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: 2.4 GHz to 2.524 GHz
  • Serial communications: 2400 bps to 115200 bps
  • Operating temperature: -40 °C to +70 °C
  • Built-in antenna
  • Firmware version 6.15

Note: SparkFun calls this product the “Bluetooth Modem – BlueSMiRF Silver” SKU: WRL-12577.


Specifications

Dimensions

Size: 0.15″ × 0.63″ × 1.65″

General specifications

Minimum operating voltage: 3.3 V
Maximum operating voltage: 6 V

Resources

(PL-2725)

SKU PL-2725
Brand Pololu

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