Products 1-48 of 193
Show
WiFi Module - ESP8266
Price: $10.82
View
Availability: Stocked
Sparkfun Item #: WRL-13678 -

"The ESP8266 WiFi Module is a self contained SOC with integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network. The ESP8266 is capable of either hosting an application or offloading all Wi-Fi networking functions from another application processor. Each ESP8266 module comes pre-programmed with an AT command set firmware, meaning, you can simply hook this up to your Arduino device and get about as much WiFi-ability as a WiFi Shield offers (and that’s...

Serial WIFI Transceiver Module ESP8266
Price: $11.62
View
Availability: Stocked
Elecrow Item #: EL-WWI8266ESP -

This serial WiFi transceiver module is based on ESP8266 SoC.. ESP8266 is a highly integrated chip that has Integrated TCP/IP protocol stack. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor. Besides, ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices...

433Mhz RF Transmitting Module
Price: $3.45
View
Availability: Stocked
Elecrow Item #: EL-WRF43301R -

The 433MHz 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. SpecificationFrequency: 433MhzModulation: ASKReceiver Data Output: High - 1/2 Vcc, Low - 0.7vTransmitor Input Voltage: 3-12V (high voltage = more transmitting power)Package list433MHz RF Transmitter x1433MHz RF Receiver x1Wiki & External linksManual & Wiki link ...

GPRS/GSM Shield For Arduino
Price: $81.67
View
Availability: Stocked
Elecrow Item #: EL-MCS01101S -

The GPRS/GSM Shield provides you a way to use the GSM phone network to receive data from a remote location\u010f\u017a\u0152and it is compatible with all boards which have the same form factor (and pin out) as a standard Arduino Board. This shield can also be applied to DIY phones for calling, receiving and sending messages, making GPS tracker or other applications like Smart home etc. SIM900 GPRS/GSM Shield delivers GSM/GPRS850/900/1800/1900MHz signals for Audio, SMS and GPRS Service. Besides...

RFID Reader with Cards Kit- 13.56MHz
Price: $12.32
View
Availability: Back Order
Elecrow Item #: EL-CRF1356KIT -

This RFID kit includes a 13.56M RF reader module, which use the RC522 IC, plus 2 S50 RFID cards to help you learn and add the 13.56 MHz RF transition to your project. The MF RC522 is a highly integrated transmission module for contactless communication at 13.56 MHz, it supports ISO 14443A/MIFARE mode, this transmission module utilizes an outstanding modulation and demodulation concept completely integrated for different kinds of contactless communication methods and protocols at 13.56 MHz....

GPS Shield With Antenna
Price: $55.53
View
Availability: Stocked
Elecrow Item #: EL-MCS01107S -

The GPS Shield is base on the ublox\'s NEO-6M receiver module , and the footprints is compatible with Arduino/MEGA boards. The regular GPS pins (RX, TX) can be connected to D0-D7 of Arduino. Support software SerialPort and Micro SD card interface. It\'s very easy to use. You just need read SerialPort and then you will get the GPS data. The GPS Shield module interfaces to the customer and application via one serial port, which uses CMOS voltage levels. support 3.3V / 5V IO operating. That\'s...

Bluetooth Low Energy Module HM11- CC2540
Price: $20.53
View
(1)
Availability: Stocked
Elecrow Item #: EL-CBLE2540HM -

This BLE4.0 module is based on the CC2540 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, 23-6 DBM, 0 DBM, 6 DBM....

ENC28J60 Ethernet LAN Network Module
Price: $4.77
View
Availability: Stocked-NoBackOrder
MK-Misc Item #: MK-LANMOD -

ENC28J60 Ethernet LAN Network ModuleDescription: Easily enable your Arduino project to connect to your network. This serial to ethernet module can take the expense and difficulty out of making your project connected.Features:Brand new and high quality.Chip board ENC28J60/SS.The board has a 25MHZ crystal.The network interface board HR911105A.3.3 V power supply pin.Size:5.cm x 2cm x 1.5cm /1.92''x0.72''Weight: 11gPackage Contents:1 x MINI ENC28J60 Network ModuleHow...

Infrared Receiver VS/1838B (5 pcs pack)
Price: $1.82
View
Availability: Stocked
Elecrow Item #: EL-SLS18380S -

Use this simple IR receiver for infrared remote control of your next project. With the easy to use package, it mates well with embedded electronics and can be used with common IR remotes. you can also visit this page to purchase the Infrared Remote Control Specification Working Voltage :2.7V to 5.5V Reception Distance : 18M; Reception Angle : ± 45 Degree Low Level Voltage : 0.4V High Level Voltage : 4.5V; Material : Plastic, Alloy;Color : Black, Silver Tone Carrier frequence: 38KHzWiki...

SparkFun XBee Explorer USB
Price: $40.69
View
Availability: Out of Stock
Sparkfun Item #: WRL-11812 -

"This is a simple to use, USB to serial base unit for the Digi XBee line. This unit works with all XBee modules including the Series 1 and Series 2.5, standard and Pro version. Plug the unit into the XBee Explorer, attach a mini USB cable, and you will have direct access to the serial and programming pins on the XBee unit. The highlight of this board is an FT231X USB-to-Serial converter. That’s what translates data between your computer and the XBee. There’s also a reset button,...

Mini 802.11b/g/n Wifi Module
Price: $13.95
View
Availability: Stocked-NoBackOrder
Elecrow Item #: EL-RPB80211ED -

Mini 802.11b/g/n Wifi Module  This plug-and-play USB 2.0 module make your Internet of Things device cable-free by adding WiFi .This module is great for those who want to equip their devices with internet access, such as the Raspberry Pi and Beagle Bone. Having tested this module, we found that it is supported by Raspberry Pi out-of-the-box (testing operation system: Raspbian “wheezy”). Due to the limited number of the USB ports on PI, we suggest you to use an USB...

ESP8266 based WiFi module FCC/CE
Price: $13.25
View
Availability: Stocked
Elecrow Item #: EL-CWI82668FC -

ESP-12 (ESP8266 ) is an ultra-low power UART-WiFi module. It has excellent dimensions and ULP technology compared to other similar modules. The module is special design for mobile devices and Internet of Things . Once firmware is upgraded to the appropriate version, a compatible Android device can run the IOT.APK to do the following:control the PWM, I/O pin, or Serial communication. For example,you can use this module transmit date with it serial port.It is easy to communication with other...

NRF24L01+ Module
Price: $5.09
View
Availability: Stocked
Elecrow Item #: EL-WRF24010R -

This module uses the newest 2.4GHz transceiver from Nordic Semiconductor, the nRF24L01.This transceiver IC operates in the 2.4GHz band and has many new features! Take all the coolness of the nRF2401A and add some extra pipelines, buffers, and an auto-retransmit feature.Now we make a breakout for nRF24L01 , and build the smallest system for it , also the wireless circuit . You can use it in you project without any wireless design , just need to leave a 8 pins interface to this module , use the...

315M RF Controller Kit
Price: $11.20
View
Availability: Stocked
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 forth for all four buttons....

4 Channels RF Remote Control Module DC 5V
Price: $23.33
View
Availability: Back Order
Elecrow Item #: EL-CRF00504C -

This 4-channel latching relay module whose output is passive output, can be controlled by its 5-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...

Interface Cable SMA to U.FL
Price: $7.71
View
Availability: Stocked
Sparkfun Item #: WRL-09145 -

"This is a 4" connector cable that interfaces U.FL RF connectors to regular SMA connectors. Documents: Datasheet RF Connector Buying Guide "

315Mhz RF Transmitting Module
Price: $3.45
View
Availability: Stocked
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.SpecificationFrequency: 315MhzModulation: ASKReceiver Data Output: High - 1/2 Vcc, Low - 0.7vTransmitor Input Voltage: 3-12V (high voltage = more transmitting power)Package list315MHz RF Transmitter x1315MHz RF Receiver x1Wiki & External linksManual & Wiki link ...

Wireless SD Shield
Hot!
Retail: $20.75
Price: $13.80
View
Availability: Stocked
Elecrow Item #: EL-MCS01109S -

The Wireless SD card shield allows an Arduino board to communicate wirelessly using a wireless module, and adds storage to your Arduino project. The XBee Shield is based on the Xbee modules from Digi, but can use any Bee module with the same footprint. It supports SD, SDHC, or MicroSD TF cards. Use the on-board toggle switch to select the SD card type. And when you want plug a sd card on it,you should select the switch to the right direction. About the wireless module, it only uses you two...

W5200 Ethernet Shield
Price: $46.43
View
Availability: Stocked
Elecrow Item #: EL-ACS52001S -

The Ethernet Shield connects your Arduino device to the internet in mere minutes. Just plug this module onto your Arduino board, connect it to your network with an RJ45 cable (not included) and follow a few simple instructions to start controlling your world through the internet. The Ethernet controller of this Ethernet Shield is W5200. it is twice the buffer size of W5100 and support for up to eight simultaneous TCP/UDP connections. There is an onboard micro-SD card slot, which can be used to...

ESP8266 IOT Board
OOD!
Price: $30.10
View
Availability: Back Order
Elecrow Item #: EL-DPO82666E -

This is a ESP8266 IOT board- our take on an \'all-in-one\' ESP8266 WiFi development board with built in USB and battery charging. It’s an ESP8266 WiFi module with all the extras you need, The most important part is an ESP8266 WiFi microcontroller clocked at 80 MHz and at 3.3V logic. This microcontroller contains a Tensilica chip core as well as a full WiFi stack. You can program the microcontroller using the Arduino IDE for an easy-to-run Internet of Things core. We wired up a USB-Serial...

SparkFun Bluetooth Modem - BlueSMiRF Gold
OOD!
Price: $54.40
View
Availability: Stocked
Sparkfun Item #: WRL-12582 -

"The BlueSMiRF is the latest Bluetooth****wireless serial cable replacement from SparkFun Electronics! These modems work as a serial (RX/TX) pipe. Any serial stream from 2400 to 115200bps can be passed seamlessly from your computer to your target. We’ve tested these units successfully over open air at 350ft (106m)! The latest version of this board also breaks out PIO4. Note: The remote unit can be powered from 3.3V up to 6V for easy battery attachment. All signal pins on the remote unit...

433Mhz Serial RF Module HC-12
Price: $28.47
View
Availability: Stocked
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. There is MCU inside the module,...

Antenna GPS Embedded SMA
Price: $19.92
View
Availability: Stocked
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...

Xbee Shield
Price: $18.43
View
Availability: Stocked
Elecrow Item #: EL-MCS01407S -

XBee shield will make interfacing multiple Bee-style (XBee, GPS Bee, Bluetooth Bee and etc) easier than ever before. it has large proto area, customizable software, serial, port for easier prototyping.Featuresarduino main board compatible3 indicator LED\u010f\u017a\u02c6ON/Sleep, RSSI, ASSOC\u010f\u017a\u2030for XBeeFull size with free drillsReset button for XBee and base boardProvide maximal 500mA under 3.3VFull break out for XBeeFull break out for the base boardPackage listXBee Shield PCBA...

ESP8266 Evaluation Board ESP-12
Price: $16.24
View
Availability: Stocked
Elecrow Item #: EL-DP8266ESP12 -

This development board is a ESP8266 ESP-12 full evaluation board, The core ESP8666 module was mounted on a PCB with all the GPIO broken out.The board is powered by 3 x AA cells, and an onboard regulator ensures a neat 3.3V supply for the ESP8266. Furthermore, each GPIO has an LED connected so you can quickly test your code without connecting external hardware, and a LDR to test the ADC. When searching for this over a WiFi network, the device name is "AI-THINKER" and the password is...

SparkFun XBee Explorer Regulated
Price: $16.58
View
Availability: Stocked
Sparkfun Item #: WRL-11373 -

"The SparkFun XBee Explorer Regulated takes care of the 3.3V regulation, signal conditioning, and basic activity indicators (Power, RSSI and DIN/DOUT activity LEDs). It translates the 5V serial signals to 3.3V so that you can connect a 5V (down to 3.3V) system to any XBee module. The board was conveniently designed to mate directly with the SparkFun Arduino Pro series of boards for wireless bootloading and USB based configuration. This unit works with all XBee modules including the Series 1...

SparkFun XBee Shield
Price: $24.60
View
Availability: Stocked
Sparkfun Item #: WRL-12847 -

"XBee radios are an awesome way to add wireless capability to your Arduino project and now it’s even easier with the SparkFun XBee Shield. The shield form-factor mates directly with any dev board that has an Arduino standard footprint and equips it with wireless communication capabilities using the popular XBee module. This unit works with all XBee modules including the Series 1 and 2, standard and Pro versions. The serial pins (DIN and DOUT) of the XBee are connected through an SPDT...

Bluetooth USB Module Mini
Price: $18.28
View
Availability: Stocked
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....

Bluetooth Bee
Price: $27.53
View
Availability: Stocked
Elecrow Item #: EL-CBL37551BE -

Bluetooth BeeDescription: This 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 connect to...

SparkFun ESP32 Thing
Price: $31.05
View
Availability: Stocked
Sparkfun Item #: DEV-13907 -

"The SparkFun ESP32 Thing is a comprehensive development platform for Espressif’s ESP32, their super-charged version of the popular ESP8266. Like the 8266, the ESP32 is a WiFi-compatible microcontroller, but to that it adds support for Bluetooth low-energy (i.e BLE, BT4.0, Bluetooth Smart), and nearly 30 I/O pins. The ESP32’s power and versatility will make it the foundation of IoT and connected projects for many years to come. Why the name? We lovingly call it the...

XBee 1mW Trace Antenna - Series 1 (802.15.4)
Price: $41.58
View
Availability: Stocked
Sparkfun Item #: WRL-11215 -

"This is the very popular 2.4GHz XBee module from Digi. These modules take the 802.15.4 stack (the basis for Zigbee) and wrap it into a simple to use serial command set. These modules allow very reliable and simple communication between microcontrollers, computers, systems, really anything with a serial port! Point to point and multi-point networks are supported. Not sure which XBee module or accessory is right for you? Check out our XBee Buying Guide! Note: If you are using these outside of...

SparkFun XBee Wireless Kit
OOD!
Price: $156.47
View
Availability: Back Order
Sparkfun Item #: KIT-13197 -

"This is the SparkFun XBee Wireless Kit, the perfect box full of goodies to get you started using XBees. Inside this kit you will find two XBee Modules, one XBee Explorer, one Xbee Shield and a set of R3 headers to solder onto the shield. Our entire goal for the XBee Kit was to make wireless communication simple. Connect one XBee to the shield and your Arduino, connect the other XBee to the Explorer board and your computer, and you’ll be able to seamlessly pass serial data to and from...

Laser Pointer - 5V
OOD!
Price: $0.93
View
Availability: Stocked
Elecrow Item #: EL-WIW56001W -

This laser pointer or laser pen is a small handheld device with a laser diode emitting a very narrow coherent low-powered laser beam of visible light, it is frequently used in lecture halls and demonstrations to point at topics of interest on a presentation board. In a school setting, they have become ubiquitous, and they are very useful teaching aids. Please note that DO NOT Point this module to eyes directly, It may cause some blindness, glare and afterimages.Application Idea Pointing...

XBee Pro 60mW Wire Antenna - Series 1 (802.15.4)
Price: $76.00
View
Availability: Stocked
Sparkfun Item #: WRL-08742 -

"This is the very popular 2.4GHz XBee XBP24-AWI-001 module from Digi. The Pro series have the same pinout and command set of the basic series with an increase output power of 60mW! These modules take the 802.15.4 stack (the basis for Zigbee) and wrap it into a simple to use serial command set. These modules allow a very reliable and simple communication between microcontrollers, computers, systems, really anything with a serial port! Point to point and multi-point networks are supported. Not...

NFC Shield
Price: $45.50
View
Availability: Stocked
Elecrow Item #: EL-ACS53201S -

NFC(Near Field Communication) is a set of standards for smartphones and similar devices to establish radio communication with each other by touching them together or bringing them into close proximity , it builds upon RFID systems by allowing two-way communication between endpoints. Compared with the Bluetooth, which is also short-range communication technology, NFC operates at slower speeds, but consumes far less power and doesn’t require pairing. This NFC shield based on the PN532 from...

SparkFun Bluetooth Modem - BlueSMiRF Silver
OOD!
Price: $40.69
View
Availability: Back Order
Sparkfun Item #: WRL-12577 -

"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 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...

SparkFun ESP8266 Thing - Dev Board
OOD!
Price: $26.01
View
Availability: Back Order
Sparkfun Item #: WRL-13711 -

This is the SparkFun ESP8266 Thing Dev Board – a development board that has been solely design around the ESP8266, with an integrated FTDI USB-to-Serial chip. The ESP8266 is a cost-effective, and very capable WiFi-enabled microcontroller. Like any microcontroller, it can be programmed to blink LEDs, trigger relays, monitor sensors, or automate coffee makers, and with an integrated WiFi controller, the ESP8266 is a one-stop shop for almost any Internet-connected project. To top it all off, the...

Antenna GPS 3V Magnetic Mount SMA
Price: $21.58
View
Availability: Stocked-NoBackOrder
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" ...

Raspberry Pi Zero W
OOD!
Price: $20.38
View
Availability: Back Order
Sparkfun Item #: DEV-14277 -

"The credit-card-sized computer has become even smaller! The Raspberry Pi Zero W is still the Pi you know and love, but at a largely reduced size of only 65mm long by 30mm wide and at a very economical price. With the addition of wireless LAN and Bluetooth, the Raspberry Pi Zero W is ideal for making embedded Internet of Things (IoT) projects. The Pi Zero W has been designed to be as flexible and compact as possible with mini connectors and an unpopulated 40-pin GPIO, allowing you to use only...

A6 GPRS/GSM Shield
Price: $33.94
View
Availability: Back Order
Elecrow Item #: EL-ACS20950A -

This is a A6 GPRS/GSM Shield, which is use the newest A6 gprs/gsm module, A6 is a low-cost but efficient chip. With its ultra-small size, low power consumption and wide operating temperature range, A6 is an ideal solution for M2M applications, for automotive, industrial and PDA, personal tracking, power environmental monitoring, wireless POS, smart metering, and other M2M applications , to provide comprehensive GSM / GPRS text messaging, voice and data transmission services. We design this A6...

Quad-band Cellular Duck Antenna SMA
Price: $13.25
View
Availability: Stocked
Sparkfun Item #: CEL-00675 -

"This is a fantastic find for SFE. A small, high-quality, quad-band, standard SMA terminated, cellular antenna. Specifications: GSM/850E : 824 to 894MHz GSM : 880 to 960MHz DCS : 1710 to 1880MHz PCS : 1850 to 1990MHz Documents:GSM Antenna 850-1900MHz"

NRF24L01+PA+LNA Wireless Module - 1100 Meters
Price: $25.20
View
Availability: Stocked
Elecrow Item #: EL-WRW24015R -

NRF24L01P + PA + LNA wireless module operates in Free license 2.4G ISM band, you can do point to point application and can also be composed of star network. The Data transmission chip NRF24L01+, and match with the department\'s professional design, Add the the chip of power PA and LNA, RF switch, band pass filter composed of a professional full two-way RF power amplifier, making the effective communication distance has been greatly expanded. Small size: 45.54mm x 16.46mm, easy to embed in any...

Wifi Shield
Price: $92.87
View
Availability: Stocked
Elecrow Item #: EL-ACS17101S -

This WiFi Shield connects your Arduino or Crowduino to the internet wirelessly. Just connect it to your wireless network with a few simple instructions, you can start to control your applications through the internet now. This Wifi Shield utilizes a RN171 which is a complete, standalone TCP/IP wireless network module, to provides your Arduino/Crowduino internet connectivity via 2-pin serial port. Also, on the board there is an on-board micro SD slot ready for your store your data, making you...

XBee Explorer USB
Price: $43.14
View
Availability: Stocked-NoBackOrder
Sparkfun Item #: WRL-08687 -

XBee Explorer USBDescription: This is a simple to use, USB to serial base unit for the XBee line. This unit works with all XBee modules including the Series 1 and Series 2.5, standard and Pro version. Plug the unit into the XBee Explorer, attach a mini USB cable, and you will have direct access to the serial and programming pins on the XBee unit. You get the red board only. XBee modules and USB cable sold below. Documents: Schematic X-CTU Software USB FTDI Drivers for...

Bluetooth Shield (Master/Slave)
Price: $34.53
View
Availability: Stocked
Elecrow Item #: EL-MCS01108S -

The Bluetooth Shield integrates a Serial Bluetooth module. It can be easily used with Arduino /Crowduino for transparent wireless serial communication. You can choose two pins from Arduino D0 to D7 as Software Serial Ports to communicate with Bluetooth Shield (D0 and D1 is Hardware Serial Port). It also expand five analog IOs that you can use it to connect other devices. The Bluetooth Shield could be setting to Master or Slave by user. Serial port Bluetooth module is fully qualified Bluetooth...

Bluetooth Audio Receiver Decoding Player
OOD!
Price: $25.67
View
Availability: Stocked
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...

IR Receiver - SM0038
OOD!
Price: $1.87
View
Availability: Stocked
Elecrow Item #: EL-WIW00381W -

The SM0038 can almost receive all IR transmitter with 38kHz signals. The outputs can be easily decode by Arduino,You can find the example at the Arduino forum. Features Build-in amplifier and IR receiver Build-in PCM filter Low power consumption Wiki & External links SM0038 Datasheet ...

NL6621-Y1 2.4G Uart Serial to WiFi Module for Arduino
Price: $15.17
View
Availability: Stocked
Elecrow Item #: EL-CCW01021C -

NL6621M is a highly integrated SOC, especially for the low-cost high data throughput wireless LAN products and designs. It integrates MCU, MAC, 1T1R baseband and RF transceiver with power amplifier on a single chip NL6621M support 802.11b / g / n and Wi-Fi direct (SDIO card mode), BSS STA, soft AP, WiFi Protected Setup. It also supports WMM-PS and WPA / WPA2 security protocol. NL6621M not only for controlling by the host processor from the device but also can be used as standalone WLAN...