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1 Channel RF Remote Control Module AC 110V - 220V
Price: $14.01
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Elecrow Item #: EL-CRF22001C -

This 1 channel latching relay module whose output is passive output, can be controlled by its 2-button RF wireless controller, when the module is powered on. The module must be equipped with a suitable remote control, it also can drive most of household electrical appliances.Features Able to control various appliances and other equipments with large current Equipped with high-current relay Standard interface that can be controlled directly by microcontroller LED indication for Relay output...

125Khz RFID module - UART
Price: $26.75
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SeeedStudio Item #: SWRFID125 -

125Khz RFID module - UARTRDM 125KHz card mini-module is designed for reading code from 125KHz card compatible read-only tags and read/write card . It can be applied in office/home security, personal identification, access control, anti-forgery, interactive toy and production control systems etc. FEATURES Support external antenna Maximum effective distance up to 150mm Less than 100ms decoding time UART TTL interface Support EM4100 compatible read only or read/write tags Built-in...

150M Miniature WiFi (802.11n) Module for Raspberry Pi
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Price: $14.65
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DFRobot Item #: FIT0368 -

EDUP"s Wireless-N USB 2.0 Adapter allows you to connect your devices such as laptop, PC and miniPC to any Wireless-N networks in your home or office. The Wireless-N (802.11n) USB 2.0 Adapter is great for those who want to connect devices to internet over a Wireless-N network. At 5 times faster than traditional Wireless-G (802.11b) networks, Wireless-N networks allow for high speed data transfers, online gaming, and lightning fast downloads. The Wireless-N USB 2.0 Adapter gives you access to...

1Sheeld+
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Price: $50.97
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Sparkfun Item #: CEL-14333 -

"The 1Sheeld+ is an easily configured shield for Arduino. It has a built-in Bluetooth Low Energy (BLE) module that gives to your Arduino the capability to connect itself to your iOS and Android phones. Thanks to the 1Sheeld app available on the App Store or Google Play, you can easily associate your iPhone or Android device to it, turning your smartphone into a shield itself. Once connected you can control your Arduino with the smartphone, sending data and controlling pins, but you can also do...

2.4G 4dBi WiFi Antenna With Cover
Price: $3.54
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Elecrow Item #: EL-WAW24040A -

    This is a 2.4G 4dBi WiFi Antenna with ipex13 for DIY projects. Electrical Characteristics Frequency 2400 ~ 2500 MHz S.W.R. <= 2.0 @ 2400 MHz ~ 2500 MHz Antenna Gain 4dBi Impedance 50 Ohm Environmental Operation Temperature - 40 ?C ~ + 65 ?C Storage Temperature - 40 ?C ~ + 80 ?C ...

2.4GHz 6dBi Antenna with IPEX Connector
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Price: $8.45
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DFRobot Item #: FIT0505 -

This is an omni-directional antenna with an IPEX connector. Its working frequency is 2.4GHz which meets most requirements of Wi-Fi devices. With 6dBi high gain, it offers robust signal reception and transmission. It is ideal for use with a LattePanda single board computer|Specification| Frequency: 2.4 GHz Gain: 6dBi Cable Length: 15cm Interface: IPEX MHF1 Supports LattePanda Height: 170 mm/ 6.7 inches Weight: 18g|ShippingList| 2.4GHz 6dBi Antenna with IPEX connector x 1 ...

2.4GHz Antenna - Adhesive (U.FL Connector)
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Price: $6.81
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Sparkfun Item #: WRL-11320 -

"This adhesive, omni-directional antenna is perfect for situations when you’re trying to get a signal out from a transmitter that you’ve jammed down into an enclosure. Operating on the 2.4GHz band, it works great for WiFi, Bluetooth or ZigBee. Just connect the antenna using the attached u.fl connector and then peel and stick! Dimensions: 41 x 30mm, 350mm cable Features: Type: Omni-Directional Dual Frequency Range: 2300 to 3800MHz & 5150 to 5875MHz Impedance: 50 Ohm Maximum...

2.4GHz Ceramic Chip Antenna
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Price: $3.40
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Sparkfun Item #: WRL-00144 -

"2.4GHz ceramic chip antennas. Very small antennas that work nicely with the Nordic ICs. Don’t expect these little guys to perform as well as their ~2" rubber duck counter parts, but then again, these will squeeze onto any PCB layout. Dimensions: 2.2x6.5mm Documents: chip-antenna-2.4ghz.pdf"

2.4GHz Duck Antenna RP-SMA
Price: $9.14
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Sparkfun Item #: WRL-00145 -

"2.4GHz Duck Antenna 2.2dBi with Reverse Polarized - SMA RF connector. Perfect for prototyping with our RF ICs. 50 ohm impedance. 4" long. The FCC is moving towards Part 15 compliance. All this means is that all the SMA RF connectors are changing gender. Really annoying for those of us who need to mate an antenna to an RF device. The FCC gender change was instituted to prevent home users from damaging RF equipment (think home WiFi) when screwing on an antenna. If all antennas are female, there...

2.4GHz Duck Antenna RP-SMA - Large
Price: $11.44
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Sparkfun Item #: WRL-00558 -

"Need range? 2.4GHz Large Duck Antenna 5dBi with Reverse Polarized - SMA RF connector. Perfect for prototyping with our RF ICs. 50 ohm impedance. This antenna mates nicely with the Reverse Polarized SMA Connector. Dimensions: 0.5x7.7" Documents:Datasheet"

2mm 10pin XBee Socket
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Price: $1.47
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DFRobot Item #: FIT0158 -

This is a 10-pin socket with 2mm(0.08") pitch that mates with the popular XBee radio from Maxstream. Use this small part to avoid having to solder your precious radio to a PCB. You&;#39;ll need two of these sockets to connect to all 20 pins on the XBee.Please Note: This item is sold as a single side, not in pairs. |Specification| 2mm(0.08") 10pin Xbee compatible header|Documents| Datasheet?|ShippingList| 2mm(0.08") 10pin XBee Socket x1 ...

315M RF Controller Kit
Price: $10.33
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Elecrow Item #: EL-WRF315KIT -

    This wireless controller kit uses the SC2273-L4 SC2272-M4 to encode& decode, very suit for simple wireless controls. It is consist of a keyfob 4-Button RF remote controller and a simple RF M4 receiver, There's no programming, configuring or addressing - simply power the receiver with 5VDC and press the buttons on our matching RF keyfob remote. When the A button is pressed, it activates the first pin, when the B button is pressed, it activates the second one, and so...

315Mhz RF Transmitting Module
Price: $2.91
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Elecrow Item #: EL-WRF31501R -

    The 315MHz RF link kit is consisted of transmitter and receiver, popular used for remote control. We suggest you use the Arduino VirtualWire library to use this kit.Please refer to the wiki for more details.      Specification Frequency: 315Mhz Modulation: ASK Receiver Data Output: High - 1/2 Vcc, Low - 0.7v Transmitor Input Voltage: 3-12V (high voltage = more transmitting power) Package list 315MHz RF Transmitter x1 315MHz RF Receiver x1 Wiki &...

433MHz RF Transceiver CC1101 Module
Price: $17.68
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Elecrow Item #: EL-WRF11010R -

    The CC1101 is a low-cost sub- 1 GHz transceiver designed for very low-power wireless applications. The circuit is mainly intended for the ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) frequency bands at 315, 433, 868, and 915 MHz, but can easily be programmed for operation at otherfrequencies in the 300-348 MHz, 387-464 MHz and 779-928 MHz bands. Features input voltage :3.3V maximum operating speed: 500kbps, support 2-FSK, GFSK and MSK...

433Mhz Serial RF Module HC-12 (1000M)
Price: $16.22
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Elecrow Item #: EL-WHC0012RF -

    HC-12 wireless serial port communication module is a new-generation multichannel embedded wireless data transmission module. Its wireless working frequency band is 433.4-473.0MHz, multiple channels can be set, with the stepping of 400 KHz, and there are totally 100 channels. The maximum transmitting power of module is 100mW (20dBm), the receiving sensitivity is -117dBm at baud rate of 5,000bps in the air, and the communication distance is 1,000m in open space....

900MHz Duck Antenna RP-SMA
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Price: $9.14
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Sparkfun Item #: WRL-09143 -

"900/1800 MHz Duck Antenna 2dBi with regular RP-SMA RF connector. Perfect for use with the XBee 900MHz units. 50 ohm impedance. 105mm long. The FCC is moving towards Part 15 compliance. All this means is that all the SMA RF connectors are changing gender. Really annoying for those of us who need to mate an antenna to an RF device. The FCC gender change was instituted to prevent home users from damaging RF equipment (think home WiFi) when screwing on an antenna. If all antennas are female,...

915MHz LoRa Antenna RP-SMA - 1/2 Wave 2dBi
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Price: $10.21
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Sparkfun Item #: WRL-14876 -

"Increase your range with this ½ wave duck antenna. Designed for 860 to 960MHz it is ideal for distant LoRa nodes. Utilizes an RP-SMA connector and is 200mm long. Documents: 915MHz ½ Wave RP-SMA Antenna Datasheet "

915MHz LoRa Antenna RP-SMA - 1/4 Wave 2dBi
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Price: $9.14
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Sparkfun Item #: WRL-14875 -

"A small ¼ wave rubber duck antenna for LoRa or other 860-960MHz communication. Antenna has a center frequency of 915MHz and utilizes an RP-SMA connector. Gain is 2dBi with an overall length of 110mm."

915MHz LoRa Fiberglass Antenna Type N - 6dBi
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Price: $59.57
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Sparkfun Item #: WRL-14868 -

"If you need maximum distance for your LoRa project you need this incredibly durable, outdoor antenna with 6dBi gain. This 915MHz antenna is 40cm / 15.75" long and includes hardware for pole mounting. Made of fiberglass and aluminum this antenna is ideal for heavy-duty and high-power LoRa base stations but can be used with LoRa nodes as well. Antenna has a type N male termination. When mounted vertically this shrouded connector helps prevent against water and weather build-up on the threads....

ADH8066 Evaluation Board
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Price: $57.44
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Sparkfun Item #: CEL-10741 -

ADH8066 Evaluation Board Description: The evaluation board for the ADH8066 Cell Module breaks out all the pins to the module and provides you with the necessary support hardware to get you up and running. The ADH8066 board attaches to any USB port and appears as a standard com port. Power up the board with 6-12 VDC, turn on the module, and you can start sending and receiving AT commands via HyperTerminal or your favorite terminal program. The board comes assembled as shown so you don't...

Antenna GPS 3V Magnetic Mount SMA
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Price: $14.89
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Sparkfun Item #: GPS-00464 -

"Magnet mount antenna for GPS modules operating at 3V. Designed for use with automobiles - the magnet will hold the antenna in place at speeds greater than 100mph. 5 meter cable terminated with standard male SMA connector. Check out our GPS buying guide! Features: Gain 26dB VSWR <2.0 Voltage 3.3V +/- 0.5V Current 12mA Weight 50g Documents: Datasheet" ...

Antenna GPS Chip-Scale
Price: $1.73
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Sparkfun Item #: GPS-09131 -

"That is a GPS chip antenna. Itty-bitty! And we were just as surprised when it picked up just as many satellites as the larger ceramic antennas. The PDOP and VDOP (dilution of precision) of these chip antennas are greater than their ceramic siblings and the gain is not as great (to be expected), but heck, if you can get a lock with this little guy, who cares? Note: This is just a GPS antenna and is not a complete GPS module. For a complete module, check out our GPS category. Check out our GPS...

Antenna GPS Embedded SMA
Price: $14.47
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Sparkfun Item #: GPS-00177 -

"Embedded antenna for small, mobile applications. Basic unpackaged antenna with LNA. 5inch cable terminated with standard male SMA connector. Match it with any SMA interface cable to create a truly small GPS prototype! This unit works very well out of the box, but the fully packaged antennas have better strain relief where the SMA cable meets the antenna housing. If you plan on using this antenna in a vibration intensive application, we recommend you reinforce the connection with epoxy or Shoe...

Arduino Industrial 101
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Price: $67.99
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Sparkfun Item #: DEV-14134 -

"The Arduino Industrial 101 is a WiFi evaluation board for the Arduino 101 LGA module based on a MIPS Linux processor. With the Industrial 101 you will possess a fantastic addition to the Arduino family and be able to easily create IoT projects without the need for multiple shields. Similar to the Arduino Yun (in a small form-factor), the Industrial 101 integrates an ATmega32U4 and the Atheros AR9331 SoC to make a dependable evaluation resource! The onboard ATmega32u4 microcontroller has been...

Arduino MKR1000
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Price: $52.76
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Sparkfun Item #: DEV-14394 -

"The Arduino MKR1000 is a powerful board that combines the functionality of an Arduino Zero and a handy WiFi shield. This thin board has been designed to offer a practical and cost-effective solution for makers wanting to design IoT projects with minimal previous experience in networking. It is based on the Atmel® ATSAMW25 SoC (System on Chip), that is part of the SmartConnect family of Atmel wireless devices specifically designed for Internet of Things (IoT). The MKR1000 design includes...

Arduino MKR1000 (with Headers)
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Price: $54.46
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Sparkfun Item #: DEV-14393 -

"The Arduino MKR1000 is a powerful board that combines the functionality of an Arduino Zero and a handy WiFi shield. This thin board has been designed to offer a practical and cost-effective solution for makers wanting to design IoT projects with minimal previous experience in networking. It is based on the Atmel® ATSAMW25 SoC (System on Chip), which is part of the SmartConnect family of Atmel wireless devices specifically designed for Internet of Things (IoT). The MKR1000 design includes...

Arduino Tian
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Price: $144.67
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Sparkfun Item #: DEV-14135 -

"The Arduino Tian unleashes the power of a small computer running Linux, connected to a 32-bit microcontroller. The Tian is the next logical iteration of the Arduino Yun, upgrading both the microcontroller and microprocessor, and even featuring onboard Bluetooth 4.0! The Arduino Tian is an amazing way to incorporate the ease of Arduino into your next IoT project. The Arduino Tian board is powered by Atmel’s SAMD21 MCU, featuring a 32-bit ARM Cortex® M0+ core and a Qualcomm Atheros...

BLE Micro - Super Compact BLE Module
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Price: $17.07
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DFRobot Item #: TEL0084 -

Bluno is great but I want small size for my product; Ble-link does well in its work but I don't want additional adapter to be inserted. Now, these problems are solved with BLE(bluetooth low energy) Micro, a new bluetooth 4.0 device. Comes in a small size at 24*15mm, BLE Micro can be easily put onto your PCB board, just ignore the problems like "how to design an antenna", "how to make a bluetooth chip work" and so on.BLE Micro is perfect for wearable projects. With it, you will be able to use...

BLE Micro EVB- Bluetooth 4.0 Device
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Price: $34.30
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DFRobot Item #: TEL0086 -

Bluno is great but I want small size for my product; Ble-link does well in its work but I don't want additional adapter to be inserted. Now, these problems are solved with BLE Micro, a new kind of bluetooth 4.0 device. Comes in a small size, BLE Micro can be easily put on your PCB board, just ignore the problems like "how to design an antenna", "how to make a bluetooth chip work" and so on. BLE Micro is perfect for wearable projects. With it, you will be able to use Andriod or IOS devices to...

Bluetooth 4.0 RGB LED Strip Kit (Support iPhone &; Android)
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Price: $223.93
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DFRobot Item #: KIT0069 -

Christmas is coming but stuck figuring out ideas for Christmas decors? Still thinking about putting LEDs strip and EL wires together? Simply puting LEDs and make them blinking is a has-been. Think about a new type of LED and a new way of interactive controlling for different scenes! With just a mobile device that has Bluetooth4.0 (BLE), you can easily controll every single LED in the lace, program the LEDs individually and react to beautiful rythms anytime. Whatsmore, the kit can be divided...

Bluetooth Adapter Mini
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Price: $6.72
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DFRobot Item #: TEL0002 -

Bluetooth (Bluetooth) is a kind of wireless network transmission technology originally used to replace the infrared. Compared with infrared technology, Bluetooth can transmit data without targeting, transmission distance is less than 10 meters (infrared transmission distance of a few meters). In the signal amplifier with the help of communication distance and even up to 100 meters. Bluetooth technology is ideal for low power consumption of digital devices to share data with each other, such as...

Bluetooth Audio Receiver and Playback Module (Bluetooth 4.0)
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Price: $25.84
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DFRobot Item #: TEL0108 -

This Bluetooth Audio receiver module includes a USB port and TF card slot. With a pre-amp output, you can drive headphones or a 3W speaker directly. You can also add an active power amplifier and connect a loudspeaker. The module supports MP3, WMA, WAV and lossless FLAC audio formats.This module supports playback from TF or USB flash drive. All playback is controlled by buttons, and an sound equalizer has build-in to meet different favor. With its compact form factor and 5V DC power...

Bluetooth Audio Receiver Decoding Player
Price: $21.85
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Elecrow Item #: EL-CCB25011M -

This is a bluetooth audio receiver module with usb and TF card decoding. Usually it?s can be used as a mp3 player, just a TF card and DC 5V power supply. It has five buttons for you to change mode or achieve other audio control like volume adjustment. It has two modes : music mode and bluetooth device mode. Just press the mode button for switching. When it switch into Bluetooth device mode, it can launch a bluetooth signal, when you connect other device with it, the blue led will stop flashing...

Bluetooth Bee
Price: $29.30
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Elecrow Item #: EL-CBL37551BE -

    The Elecrow Bluetooth Bee is designed for transparent wireless serial connection setup. It is a fully qualified Bluetooth V2.0+EDR (Enhanced Data Rate) 3Mbps modulation with complete 2.4GHz radio transceiver. It uses CSR Bluecore4-external single chip Bluetooth system with CMOS technology and with AFH (Adaptive Frequency Hopping). It can be configured to Master, Slave or Loopback three different modes(HC-06 just be Master/Slave, coulud be customized), and it will...

Bluetooth Low Energy Module HM11- CC2541
Price: $23.31
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Elecrow Item #: EL-CBLE2540HM -

    This BLE4.0 module is based on the CC2541 microprocessor, it can be used to communicate with desktop computers, smartphones, table computers and even other embedded systems providing Bluetooth Smart aka Bluetooth Low Energy (BLE). It's highly customlized chip with AT comand supported. You can modify the role (master, slave mode) and the serial port baud rate, name of equipment, matching parameters such as passwords, use agile, even the transmission power bwtween - DBM,...

Bluetooth Mate
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Price: $74.69
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Sparkfun Item #: WRL-09358 -

Bluetooth Mate Description: The Bluetooth Mate is very similar to our BlueSMiRF modem, but it is designed specifically to be used with our Arduino Pros and LilyPad Arduinos. These modems work as a serial (RX/TX) pipe, and are a great wireless replacement for serial cables. Any serial stream from 9600 to 115200bps can be passed seamlessly from your computer to your target. We've tested these units successfully over open air at 350ft (106m)! Bluetooth Mate has the same pin out as the...

Bluetooth Modem - BlueSMiRF RP-SMA
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Price: $79.99
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Sparkfun Item #: WRL-00158 -

Bluetooth Modem - BlueSMiRF RP-SMA Description: The BlueSMiRF RPSMA is the latest Bluetooth wireless serial cable replacement from Spark Fun Electronics! These modems work as a serial (RX/TX) pipe. Press the 'A' character from a terminal program on your computer and an 'A' will be pushed out the TX pin of the Bluetooth® module. Any serial stream from 9600 to 115200bps can be passed seamlessly from your computer to your target, from modem to module, even to any...

Bluetooth Module Breakout - Roving Networks (RN-41)
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Price: $68.94
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Sparkfun Item #: WRL-10559 -

Bluetooth Module Breakout - Roving Networks (RN-41) Description: This is a simple breakout for the Roving Networks Bluetooth module. All pertinent pins are broken out and labeled. This new version's headers are unpopulated. Check below for appropriate headers. The module from Roving Networks is powerful, small, and very easy to use. This Bluetooth module is designed to replace serial cables. The Bluetooth stack is completely encapsulated. The end user just sees serial characters...

Bluetooth Remote Shutter for Android/IOS
Price: $8.87
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Elecrow Item #: EL-AO00BRSFAI -

The Bluetooth Remote Shutter allows you to place your IOS & android smartphone or tablet within bluetooth range to take amazing self portraits of you and your friends. Tired of having to contort your arm or take multiple bad shots cut someone out? Everyone can be in the picture with Bluetooth Remote Shutter. Download the free app from Google play or the App store, pair your device with the Bluetooth Remote shutter and enjoy taking great pictures.Features Compatible with :For Iphone...

Bluetooth SMD Module - RN-41 (v6.15)
Price: $36.59
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Sparkfun Item #: WRL-12575 -

"This module from Roving Networks is powerful, small, and very easy to use. This Bluetooth module is designed to replace serial cables. The Bluetooth stack is completely encapsulated. The end user just sees serial characters being transmitted back and forth. Press the ‘A’ character from a terminal program on your computer and an ‘A’ will be pushed out the TX pin of the Bluetooth module. Note: These modules have been revised to remove three unused RF pads from the bottom...

Bluetooth SMD Module - RN-42
Price: $17.02
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Sparkfun Item #: WRL-10253 -

Bluetooth SMD Module - RN-42 Description: This module from Roving Networks is powerful, small, and very easy to use. This Bluetooth module is designed to replace serial cables. The Bluetooth stack is completely encapsulated. The end user just sees serial characters being transmitted back and forth. Press the 'A' character from a terminal program on your computer and an 'A' will be pushed out the TX pin of the Bluetooth module. The RN-42 is pin a compatible substitution for the RN-41....

Bluetooth SMD Module - RN-42 (v6.15)
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Price: $25.53
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Sparkfun Item #: WRL-12574 -

"This is the RN-42 module from Roving Networks, a powerful, small, and very easy to use. This Bluetooth module is designed to replace serial cables. The Bluetooth stack is completely encapsulated. The end user just sees serial characters being transmitted back and forth. Press the ‘A’ character from a terminal program on your computer and an ‘A’ will be pushed out the TX pin of the Bluetooth module. The RN-42 is pin a compatible substitution for the RN-41. The primary...

Bluetooth USB Module Mini
Price: $12.59
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Sparkfun Item #: WRL-09434 -

"This is a handy little Bluetooth USB mini-adapter. This adapter supports Bluetooth v2.0 class 1 and has a maximum distance of up to 100m. The adapter also includes an indicator LED. Great for laptops and if you’re on the go! This device does not include any drivers or software, however, you shouldn’t need any as it supports the native Windows Bluetooth stack (Windows XP, Vista, 7). Plug it in and Windows should handle the rest. Of course, we couldn’t resist taking it apart....

Built-in Spring GSM Antenna
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Price: $5.00
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DFRobot Item #: FIT0454 -

This is a small built-in spring GSM antenna with IPX connector. Its working frequency is 900/1800 MHz which meets most requirements of GSM applications. Its very compact size makes it easy to carry and use.Compatible With:SIM 908 GPS/GPRS/GSM Shield For ArduinoSIM800H GPRS IOT Shield For Arduino|Specification| Signal gain: 2dBi Frequency Range: 824-960/1710-1990 MHz Length: Black:5.1cm; Grey:3cm Connector: IPX/UF.L Cable type: RG1.13 Color: Grey and Black|ShippingList| Built-in Spring GSM...

Codec-Adaptive Wireless Relay
Price: $13.41
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SeeedStudio Item #: SWRF_Relay -

Codec-Adaptive Wireless RelayA wireless relay is a codec-adaptive RF receiver with single channel relay. It helps easily deployment of wireless AC control for electrical appliances. Features: Max 30 difference codec, unlimited controller or transmitter of each codec   Adaption of most popular RF remote controller, except rolling code Specification Voltage:  DC12V  Working current: ≤6mA  Working temperature: -30°C ~ +70°C  Frequency: 315MHz...

DFRobot BLE4.1 Module
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Price: $25.86
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DFRobot Item #: TEL0120 -

BLE4.1 Module is DFRobot newly developed Bluetooth 4.1 transmission module, adhering to the same usage of Bluno, and increasing the star network function, KISS connection (Approach Connection). The new Bluetooth is designed based on BLE 4.1 technology. It has low power consumption and other special features. In the BLE transmission, the point-to-point output rate is 4Kbps, equivalent to the original Bluno twice the rate.BLE4.1 Module uses DA14681 high-performance BLE chip, it integrates...

Edimax WiFi Adapter (EW-7811UN)
Price: $18.72
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Sparkfun Item #: WRL-13677 -

"The Edimax WiFi Adapter is a nano-sized USB wireless adapter that supports maximum range and speed when connected to your local network. Despite the size, this tiny USB adapter supports a data rate of up to 150Mbps when connected with a wireless 802.11n device. Simply plug it into any USB port and enjoy incredible high-speed wireless network access. This WiFi adapter is even natively supported by the Raspberry Pi, and is probably the most reliable networking tool available for the development...

Elecrow ESPduino UNO+ESP8266 Wifi Board
Price: $45.19
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Elecrow Item #: EL-ACM82664A -

If you want your Arduino to transmit data with other device or control PWM, I/O pin, serial communication of the Arduino by PC or phone client. Trust me, you definitely don't want to miss it- our Elecrow ESPduino! It will help you a lot and save your time on the connection. It combines a Arduino UNO with a serial WiFi and can be apply on lots of project of IOT, such as Smart Home, Smart robot, Security system. The same size with more powerful function, this two in...