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Four Channel Relay for Micro: bit
Price: $19.87
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Elecrow Item #: EL-DTS04012R -

Do you still looking for the relay module for the Micro: bit? Here we had combined the relay with the Micro: bit and you can use Micro: bit to control 4 relays at the same time. Features Apply to Micro: bit. Four channel relay. Specifications Input voltage: 5v Load voltage and current: 3A 120VAC/ 24VDC Working mode: NC/ NO Package list Four Channel Relay for Micro: bit x 1 Wiki & External links User manual (wiki link) ...

FPV Bracket Kit For 9g Servo
Price: $4.98
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Elecrow Item #: EL-ROK55671K -

    This is the FPV Bracket Kit For 9g Servo, with the help of this product, it would be easy for you to create 3-axis projects such as environment monitoring, tracking. It would be your good partner in servo related projects.This is only a FPV Bracket Kit without 9g servo      Package list FPV Bracket Kit?Does not include 9g servo) x 1 ...

G1/4" Water Flow Sensor
Price: $7.52
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Elecrow Item #: EL-SOT80014WF -

    Water flow sensor consists of magnetic core, rotating impeller, external casing and sensor and a hall-effect sensor. When water flows through the rotor, rotor rolls, it activates the magnetic core to trigger switch action speed changes with different rate of flow. The hall-effect sensor outputs the corresponding pulse signals, users can get the flow speed via detecting the pulse. It is suitable to detect flow in water dispenser or coffee machine.     ...

G3/4" Water Flow Sensor
Price: $15.00
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Elecrow Item #: EL-SOT80034WF -

    Water flow sensor consists of magnetic core, rotating impeller, external casing and sensor and a hall-effect sensor. When water flows through the rotor, rotor rolls, it activates the magnetic core to trigger switch action speed changes with different rate of flow. The hall-effect sensor outputs the corresponding pulse signals, users can get the flow speed via detecting the pulse. It is suitable to detect flow in water dispenser or coffee machine.     ...

Generic Parts Kit for Arduino E3
Retail: $42.00
Price: $24.99
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Elecrow Item #: EL-ACA09803A -

This is the Kit for Raspberry Pi, developed especially for those beginners who are interested in Raspberry Pi. It has more than 21 kinds of components in it. You won’t need to worry about that you don\'t have proper materials. This do save you a lot of time, so you just need to focus on your project, be more creative, and make some amazing product.Features Universal parts for ArduinoSpecification Box size: 185 x 90 x 45mm Weight: 330gPackage list Plastic box x1 Jumper wire x140 830-hole...

GPIO Extension Board for Raspberry Pi
Price: $4.98
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Elecrow Item #: EL-RPB2621T -

    If you want to make some fun embedded computer projects with your Pi, from the first project, the most important problem you need to solve is how to breakout the Pi pins. This Extension Board help you on this, it break out all those tasty power, GPIO, I2C and SPI pins from the 26 pin header onto a this breadboard.     This Extension Board is compatible with both versions 1 and 2 of the Raspberry Pi Computer - for version 2 computers, note that the...

GPIO Extension Cable For Raspberry Pi B+ 40P
Price: $2.51
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Elecrow Item #: EL-RA000021R -

     This is a 40P GPIO extension Cable special for the Raspberry Pi B+, please note that it is not compatible for the B, please purchase this for the Raspberry Pi B Features Length:19cm 2.54 interface ...

GPIO Kit for Raspberry Pi Model B+
Price: $11.52
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Elecrow Item #: EL-RA000022RK -

     The GPIO extension kit used for extending the GPIO interface on Raspberry Pi B+, it helps you break out all those tasty power, GPIO, I2C and SPI pins from the 40 pin header of Raspberry Pi B+ onto a breadboard.      There is also the GPIO board and GPIO Cable for the Model B. Corresponding Interface Pin1 - 3V3 Pin2 - 5V Pin3 - SDA Pin4 - 5V Pin5 - SCL Pin6 - GND Pin7 - GPIO4 Pin8 - TXD Pin9 - GND Pin10 - RXD Pin11 - GPIO17 Pin12 - GPIO18 Pin13 -...

GPS Shield With Antenna
Price: $39.76
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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...

Hacksaw kits
Retail: $30.03
Price: $23.10
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Elecrow Item #: EL-THT03872T -

This hacksaw kits can cut metal, pipe, twist, plastic, rubber, glass, ceramic tile, etc. It includes one junior hacksaw and 6 replacement hacksaw blades and 2 special saw blade replace the blade to meet your different needs. Also it include 2 aiguilles, it can cut glass, ceramic and so on. This hacksaw kits suits for handicraft art or other household use. This kit will be a good helper for maker.Package listHacksaw kits x1Wiki & External links ...

Hall Sensor - A3144E (5pcs pack)
Price: $2.65
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Elecrow Item #: EL-SPM31441S -

This is a Hall-effect switches sensor that integrated circuits with tighter magnetic specifications, it can work at +150?C temperatures Environment.and is more stable with both temperature and supply voltage changes. It has a voltage regulator, reverse battery protection diode,quadratic Hall-voltage generator, temperature compensation circuitry, small signal amplifier,schmitt trigger, and an open-collector output. Features Superior Temp. Stability for Automotive or Industrial Applications 4.5...

Hall Sensor Module
Price: $3.31
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Elecrow Item #: EL-SPM11042S -

    This Hall Sensor Module used Hall Sensor - A3144E. The Hall Sensor measures the Hall Effect, which is a production of a voltage difference across an electrical conductor, transverse to an electric current in the conductor as well as a magnetic field perpendicular to the current. The output of the Hall sensor switches low and turns on when a magnetic field perpendicular to the Hall sensor exceeds the BOP threshold, and it switches high and turn on when the magnetic field...

HC-SR04 Ultrasonic Ranging Sensor
Price: $3.81
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Elecrow Item #: EL-SOD00201S -

This HC-SR04 has stable performance and high ranging accuracy. Compared to the Shap IR ranging module , HC-SR04 is more inexpensive than it . But it has the same ranging accuracy and longer ranging distance. Specification Power supply: 5V DC Effectual angle: < 30 degrees Ranging distance: 2cm to 500 cm Resolution: 1 cm Ultrasonic Frequency: 40k Hz Wiki & External links Manual/Wiki Datasheet Example code ...

Heatsink Kit for RPI
Price: $1.93
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Elecrow Item #: EL-RPB1488H -

    This Kit includes 1 pcs of 14x14mm and 2 pcs of 8x 8mm heatsink, to help users cool down the main IC of Raspberry Pi.     

High sensitivity vibration sensor for vehicle
Price: $7.52
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Elecrow Item #: EL-SPM8667VC -

    This a high sensitivity vibration sensor mainly used for security detecting. This module features high sensitivity, fast response and excellent performance, and it is widely used to for security applications such as anti-theft system for vehicle. The module outputs a logic Low voltage when vibration detected, and the sensitivity can be adjusted by the potentiometer, which would be convenient for DIY projects. Specification Input voltage: 12V Working current: 6~12mA Size:...

HR202 Humidity Sensor Module
Price: $4.14
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Elecrow Item #: EL-SEHR202H -

    The HR202 Humidity Sensor Module ?can be applied to the storage compartment, indoor air quality control, building automation, medical, industrial control systems wide range of applications and research fields. Easy to interface with your microcontroller Specification Working voltage: 3.3V to 5V Digital output and you can change when to output 1 and 0. The current of output signal can exceed 15mA PCB Dimension: 3.2cm X 1.4cm Wiki & External links Datasheet of HR202...

HVFF Copper Union Straight Pneumatic Hand Valves
Retail: $2.90
Price: $2.23
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Elecrow Item #: EL-DIY14520V -

If you need a general-purpose pipe joints valve switch, it can help you, you need to choose a tube of 4mm diameter, may be a fluorine plastic or PU tube, but you should notice that silicone tube can not be used with it. It can work at harsh environment with long worklife.Featureshand valve are deisgned to turn on and off the airflowSuitable for 4mm tubeLong worklifeSpecificationsMedia: Air or VacuumOperating Pressure?0 ~ 1.0 MPaNegative Pressure?-750mmHgPressure Proof?1.5 MPaOperating...

I2C 0.96" OLED 128x64- Blue
Price: $14.70
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Elecrow Item #: EL-DO1286496BY -

     This OLED display module is small, only 0.96? diagonal, it is made of 128x64 individual blue OLED pixels, each one is turn on or off by the controller chip. It works without backlight, that is, in a dark environment, OLED display is higher compared to that of LCD display, you will like the miniature for its crispness. This module uses I2C to communicate with microcontroller such as Arduino.  Features Diagonal Screen Size?0.96" Number of Pixels?128 x 64 Color...

IMU 10DOF L3G4200D + ADXL345 + HMC5883L + BMP180
Price: $28.06
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Elecrow Item #: EL-SM080110DOF -

This IMU 1DOF is based on the sensor L3G4200D, ADXL345, HMC5883L and BMP180. The L3G4200D is a low-power three-axis angular rate sensor able to provide unprecedented stablility of zero rate level and sensitivity over temperature and time. It includes a sensing element and an IC interface capable of providing the measured angular rate to the external world through a digital interface (I2C/SPI). The ADXL345 is a small, thin, low power, three-axis accelerometer with high resolution (13-bit)...

Infrared Receiver VS/1838B (5 pcs pack)
Price: $1.30
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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...

Infrared Remote Control
Price: $1.60
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Elecrow Item #: EL-COI03420I -

    With this cheap infrared controller, you can easily make remote control projects such as the Arduino IR Remote receiver thanks to the open-hardware community, there are also some IR libraries such the joshuajnoble IR library for you to make everything in your house to be remote-control. This remote control offer 21 buttons, we suggest you use this remote control with the IR reciever. Features Demension:84mmx39mm Buttons: 21 Distance:>8m Battery:3V Button Cell Wiki...

IR Receiver - SM0038
Price: $1.87
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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 ...

Joystick Shield for Arduino
Price: $21.38
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Elecrow Item #: EL-ACS77312JS -

    The Joystick Shield enable your Arduino with a joystick! The shield sits on top of your Arduino and turns it into a simple controller. Five momentary push buttons (4+ joystick select button) and a two-axis thumb joystick gives your Arduino functionality on the level of old Nintendo controllers.     This shield is a great piece of uer interface board, it is perfect for gaming and navigating through menu quickly. It has headers for LCDs and RF modules...

KA2284 Voltage Level Indicator
Price: $6.65
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Elecrow Item #: EL-SEL09020K -

Use this KA2284 Voltage level indicator to you next project. It can be used for battery power quantity indicator, Voltage indicator and Audio indicator. Specification Working voltage: 3.5V-12Vthe magnitude of the level can be adjusted;AC and DC signals can be controlled by jumper;PCB board Dimension: 29 (mm) x21 (mm); Wiki & External links KA2284 Datasheet ...

Laser-Guide Kit
Retail: $16.22
Price: $12.47
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Elecrow Item #: EL-SPR23875L -

This laser-guide kit is used for object detections with laser, the kits includes an laser emitter, laser modulator, laser receiver and a lens, the laser modulator modulates the laser, which emittes from laser emitter, to180Khz, when the laser echos back, the laser receiver receives the signal, and reports the MCU.With the advantage of laser, this kit can detects object white-color or black-color in a range of more than 50cm. please refer to here for the Demos. Please install the components as...

LCD1602 Display for Micro: bit
Price: $9.19
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Elecrow Item #: EL-DTS02115S -

This shield is specially designed for Micro: bit, LCD1602 and Micro: bit using 4-wire connection, it is the same size as LCD1602 display and has 4 crowtail interface, IIC, UART, analog port and digital port. LCD1602 display contrast also can be adjusted. Features Apply to Micro: bit. The contrast also can be adjusted. 4-wire communication. Specifications Crowtail interface : IIC, UART, analog port and digital port Output voltage:5v Size: 37mm x 80mm Package list LCD1602 Display for Micro: bit...

Leaper - Upgraded RFID& Stepper Driver Learning Kit for Arduino
Price: $74.99
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Elecrow Item #: EL-AK55865RF -

This Learning Kit includes some of the advance modules such as RFID module, Stepper driver module to help you learn Arduino and related technologies. You can learn these knowledge while making experiment to get rid of the boring theory knowledge and obtain the single-chip microcomputer system development ability in the playPartlist1 x UNO R3 board1 x RFID reader moduleDS1302 clock module1 x 5v step motor1 x Step motor 2003 drive board10 x Green LED10 x Yellow LED10 x Red LED2 x Rocker switch1...

LM8UU Linear Bearings for 3D Printer
Price: $7.42
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Elecrow Item #: EL-P3D0125LM8 -

      This linear ball bearing is intended to slide along an M8 linear shaft. They are used in all RepRap (Prusa i3) and other 3D printers for X / Y Axis Movements. Features 24mm long x 15mm outer diameter x 8mm inner diameter

Luminosity Sensor- TSL2561 Breakout
Price: $7.37
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Elecrow Item #: EL-SM2561TSL -

     The TSL2561 Luminosity Sensor Breakout is a sophisticated light sensor which has a flat response across most of the visible spectrum. Unlike simpler sensors, the TSL2561 measures both infrared and visible light to better approximate the response of the human eye. And because the TSL2561 is an integrating sensor (it soaks up light for a predetermined amount of time), it is capable of measuring both small and large amounts of light by changing the integration...

Max 20A DC Pump/DC Motor Reverse Switch
Price: $4.84
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Elecrow Item #: EL-DIY25704C -

This is a FR4 material reversing switch, if you need to control the pump or motor reversing, you can easily complete by using it, which allows the maximum 20A current through, quality reliable with passed 3c certification , terminals using the fence terminal 7.62mm pitch, connection is stable too. Specifications Size: 3.2 * 6.0CM Material: FR4 Compatible with: M3 screws and pillars Package list Pump Switch Converter x1 Wiki & External links ...

Micro DC Geared Motor Set
Price: $8.02
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Elecrow Item #: EL-RPL11302K -

    The 5V, 83rpm Micro DC Geared Motor with Back Shaft is ideal for DIY enthusiasts. The wheel is match to the motor. This motor set are inexpensive, small, easy to install, and ideally suited for use in a mobile robot car. We recommend this L293 Motor shield to driver this motor. They are commonly used in our 2WD platforms. Specification Gear Ratio: 1:120 No-load speed(3V): 50RPM No-load speed(5V): 83RPM Torgue (3V): 0.8Kgcm Torque (5V): 1.0Kgcm Size: 69mm * 37mm *...

Micro USB Cable with Switch
Price: $4.38
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Elecrow Item #: EL-RPA06086L -

The raspberry pi has no switch, so it?s trouble to control its power supply except drawing the usb. That?s inconvenient especially in the process of preliminary debugging. So buy a power supply cable with ON/OFF switch is necessary. Not only for raspberry but also your mobile phone and other micro USB devices. It benefits to keeping on your device-battery?s working life. Features Product requirements: meet ROHS requirements Color: Black Length: 1.5m Range: USB power output Package list USB...

Micro-Speed Motor
Price: $3.14
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Elecrow Item #: EL-RPL13002S -

    The 5V, 83rpm Micro DC Geared Motor with Back Shaft is ideal for DIY enthusiasts. This motor are inexpensive, small, easy to install, and ideally suited for use in a mobile robot car. We recommend this L293 Motor shield to driver this motor. There is a wheel set in here. Specification Gear Ratio: 1:120 No-load speed(3V): 50RPM No-load speed(5V): 83RPM Torgue (3V): 0.8Kgcm Torque (5V): 1.0Kgcm Size: 69mm * 37mm * 23mm Weight:30g ...

Micro: bit Gamer Shield with Joystick and Buttons
Price: $24.22
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Elecrow Item #: EL-MIB06015G -

Playing game with your Micro: bit sounds cool, we make this gamer shield for you to relax yourself. Besides game, you can also DIY your robot, and control your own robot with this handle. There are five buttons and XY joystick on this handle that can make you control your robot or play game easier. Specifications Working voltage: 3v The interface of X joystick: P0 The interface of Y joystick: P1 The interface of 5 buttons: P2 Installation Method Install the countersunk head screw on the side...

Micro: bit GPIO Expansion Board
Price: $9.86
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Elecrow Item #: EL-DTS01559G -

This is a GPIO expansion board for Micro: bit, it?s convenient to operate. It can be inserted the expansion board directly into the Micro: bit, and this expansion board can be cascaded. Specifications Size: 64 x 37 x 12 mm Package list Micro: bit GPIO expansion board x 1 ...

Mini Bread Board 4.5x3.5cm - Blue
Price: $1.99
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Elecrow Item #: EL-PBB05545Blue -

Description The dimension of this mini breadboards is 45cm * 35mm * 9 mm, it has a self-adhesive backing and 2 x 17 rows of interconnected pins (5 per row) -170 pins in total. Besides, it is able to combine several mini boards with slot. This board is very suited for those project that need compact dimension. Features 170 Tie Point Self adhesive Can be interlocked Dimensions: 45 * 35 mm ...

Mini Bread Board 4.5x3.5cm - Clear
Price: $1.99
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Elecrow Item #: EL-PBB05545T -

Description The dimension of this mini breadboards is 45 ? 35 ?9 mm?it have a self-adhesive backing and 2 x 17 rows of interconnected pins (5 per row) - 170 pins in total. Besides, it is able to combine several mini boards with slot. This board is very suit for those project that need compact dimension. Features 170 Tie Point Self adhesive Can be interlocked Dimensions: 45 * 35 mm ...

Mini Bread Board 4.5x3.5cm - White
Price: $1.99
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Elecrow Item #: EL-PBB05545W -

Description The dimension of this mini breadboards is 45cm * 35mm * 9 mm, it has a self-adhesive backing and 2 x 17 rows of interconnected pins (5 per row) -170 pins in total. Besides, it is able to combine several mini boards with slot. This board is very suited for those project that need compact dimension. Features 170 Tie Point Self adhesive Can be interlocked Dimensions: 45 * 35 mm ...

Mini Bread Board 4.5x3.5cm - Yellow
Price: $1.99
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Elecrow Item #: EL-PBB05545Y -

Description The dimension of this mini breadboards is 45cm * 35mm * 9 mm, it has a self-adhesive backing and 2 x 17 rows of interconnected pins (5 per row) -170 pins in total. Besides, it is able to combine several mini boards with slot. This board is very suited for those project that need compact dimension. Features 170 Tie Point Self adhesive Can be interlocked Dimensions: 45 * 35 mm ...

Mini Piano Module with I2C Interface for Micro: bit
Price: $23.37
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Elecrow Item #: EL-MIB02414P -

Do you want to make your Micro: bit to be an instrument? Maybe we can make your dream come true with this piano module. There is interface for you to plug into your Micro: bit, four RGB LEDs make your board colorful. This piano module has capacitive touch chip that leads to 13 touch keys to simulate your piano keys, you can play your favorite music. Making your Micro: bit an instrument with this piano module without hesitation. Features 4 RGB LEDs, controlled by only one signal pin. Extending...

Mini USB Cable - 3m
Price: $5.01
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Elecrow Item #: EL-PCW00301C -

    This is a popular USB cable - type A to type Mini. No matter connecting arduino main boards to your computer, or for the connection between a usb storage device ,even mobile phone, it plays an important role everywhere. It's a 3m cable and long enough for normal use.

Mini Wireless Keyboard and Touchpad
Price: $55.00
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Elecrow Item #: EL-RPB17653LM -

    This wireless keyboard and touchpad add a miniature wireless controller to your computer project with this combination keyboard and touchpad. It's small but usable to make a great accompaniment to a computer such as the Raspberry Pi. In addition, it is also compatible with multi-systems thus it can run on Windows, Mac, Android and Linux.      The keyboard itself is battery powered (there's a rechargeable battery inside that you charge up via the...

MQ5 Gas Sensor
Price: $5.81
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Elecrow Item #: EL-SEN13650M -

    The MQ5 Gas Sensor module is useful for gas leakage detecting. It can detect LPG, i-butane, methane, alcohol, Hydrogen, smoke and so on. The sensitivity can be adjusted using the on-board potentiometer, and you'd use this sensor by reading the analog pin to which it is connected. Please use these sensors only in controlled experiments! Combustible gases and fumes are very dangerous! Here are details for some MQ gas sensor. SysmbolMQ-2MQ-3MQ-5MQ-9Detect GasCombustible...

MT7681 Serial WIFI Module
Price: $16.22
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Elecrow Item #: EL-CCW07681M -

MT7681 contains high speed processor, the CPU can be used by the customer, without external microcontroller to achieve data transmission. There are dozens of K application space FALSH can use, more than 10 K RAM idle, peripheral 5 IO port and serial port can be feel free to call. Internal MT7681 code, need to call a few TCP UDP function, can complete the link of data sending and receiving function. At present this module source code is to demonstrate MT7681 internal CPU and the whole process...

Nano 328(Arduino Compatible)
Price: $14.87
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Elecrow Item #: EL-MCA03328A -

    The Nano 328 is a small, complete, and breadboard-friendly board based on the ATmega328 (Arduino Nano 3.0) or ATmega168 (Arduino Nano 2.x).It have an integrated on-board USB. As the function, It has almost all the analog and digital pins that the UNO or Duemilanove has and the same function as Duemilanove or UNO. This Nano 328(Arduino compatible) can go with the IO Shield for Arduino Nano, it would be more friendly and convenient for users to enter the Arduino world and...

NFC Shield
Price: $32.57
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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.    &nbs...

NFC Sticker Tag - Rectangle (MIFARE Classic 13.56MHz/1K S50)
Price: $2.51
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Elecrow Item #: EL-WRN13566N -

    This is a MiFare Classic Sticker - often used for electronic locks or customer identification. The tag contains a NXP S50 chip and an antenna, and is passively powered by the reader/writer when placed a couple inches away. Can be used with NFC Shield. Specification 1 KiloByte (8 KiloBit) non-volatile EEPROM storage Built in encryption engine with 48-bit key 4 Byte unique identifier burned into the chip 13.56 MHz frequency      ...

NL6621-Y1 2.4G Uart Serial to WiFi Module for Arduino
Price: $15.06
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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...