WRL-12577 SparkFun Bluetooth Modem – BlueSMiRF Sil

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) pi-pe. Any serial stream from 2400 to 115200bps can be passed seamlessly from your computer to your target.

The remote unit can be powered from 3.3V up to 6V for easy battery attachment. All signal pins on the remote unit are 3V-6V tolerant. No level shifting is required. 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.

Unit comes without a connector.


v6.15 Firmware
FCC Approved Class 2 Bluetooth Radio Modem
Extremely small radio – 0.15×0.6×1.9″
Very robust link both in integrity and transmission distance (18m)
Hardy frequency hopping scheme – operates in harsh RF environments like WiFi, 802.11g, and Zigbee
Encrypted connection
Frequency: 2.402~2.480 GHz
Operating Voltage: 3.3V-6V
Serial communications: 2400-115200bps
Operating Temperature: -40 ~ +70C
Built-in antenna
45×16.6×3.9mm