SparkFun BlueSMiRF V2 Bluetooth Wireless Serial UART Link (3.3-5V)
Robust wireless Bluetooth link
Seamless serial data transmission
Compatible with various baud rates
Supports OTA firmware updates
Built-in voltage regulator & logic level shifting
The SparkFun BlueSMiRF V2 Bluetooth Wireless Serial UART Link (3.3-5V) serves as a robust wireless Bluetooth serial link, facilitating the replacement of serial cables with a wireless serial UART pipe. This device allows for seamless pairing, connection, and transmission of serial data across TX/RX lines, supporting a wide range of baud rates for serial streams. It boasts duplex transmission capabilities, ensuring accurate buffering, transmission, and delivery of data streams between two devices.
The BlueSMiRF V2 comes with several enhancements over its predecessor, maintaining compatibility with the pinout of previous Bluetooth Mates and USB-to-serial converters. This compatibility ensures ease of integration with a variety of development boards and high-precision GNSS breakout boards. To connect to another device, users will need to solder a 1x6 female header or striped wires to the provided PTHs.
For short-range applications, the BlueSMiRF V2 is ideal, offering reliable point-to-point communication within a 100ft (33m) indoor range. It can be paired with phones or computers for data viewing or remote control, and two BlueSMiRF units can be connected with the onboard PAIR button. The device also allows for remote configuration via a serial terminal app on a phone, with a simple AT command set to adjust settings such as baud rate and flow control. Additionally, it supports OTA updates for firmware enhancements.
The BlueSMiRF V2 includes an onboard voltage regulator, logic level shifting circuitry on all pins, and two built-in LEDs to indicate connection status and serial UART traffic. It primarily supports Bluetooth classic (Serial Port Profile or SPP) and also offers BLE protocol support for a wider range of devices.
Please note that the device requires an RS232 to TTL converter for higher voltages, and the voltage regulator can be bypassed with a jumper on the board. Bluetooth® classic (Serial Port Profile or SPP) is the primary supported protocol, compatible with Android phones, most desktops, and laptops, while BLE protocol support is available for all Apple phones.
1x SparkFun BlueSMiRF V2 Bluetooth Wireless Serial UART Link (3.3-5V)
WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov.
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If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
The RA number is valid for 30 days. The returned item must be received within that period.
The RA number must be included with the return.
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Return Exceptions
The following products are not eligible for return or refund under this policy:
Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
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Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
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Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
On-Demand Items — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfill a customer request.
While the same return policy applies, these orders require a separate contact process for returns.
RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
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Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".
