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Electronic Time Delay Module
Price: $11.20
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Elecrow Item #: EL-SPTD014M -

This time delay module provides you a way to control the time. Some time, you may want to control a LED on/off within some time, a microcontroller would be ok for such an application, but it would be troublesome, and expensive! This module would be help in these applications. With this module, you can set a delay time 0~14 minutes with the onboard potentiometer, unlike the other mechanic timer, this module is also friendly to microcontrollers, you can set the module start/stop timing, which...

EMAX 9g ES08A Mini Servo
Price: $8.77
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Elecrow Item #: EL-RMS19001S -

    This EMAX servo is an entry level servo for beginners who like to enjoy servo controlling fun. This product includes a full set of common shafts as shown in the pictures, great for small mechatronic projects. Features 3 pole ferrite, all nylon gear. Top ball bearing location of each pin: red (+),brown (-), yellow (signal). Specification Operating Voltage: 4.8V ~ 6.0V Stall Torque(4.8V): 1.5Kgf.cm(22.2 oz.in) Operating Speed(4.8V): 0.12 Sec/60? at no load Temperature...

EMAX ES08MD High Sensitive Metal Core Mini Servo
Price: $16.68
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Elecrow Item #: EL-RMS19004S -

    This EMAX servo is an high sensitive metal core servo. This product includes a full set of common shafts as shown in the pictures, great for small mechatronic projects.      Features 3 pole ferrite, all metal gear. Top ball bearing location of each pin: red (+),brown (-), yellow (signal). Specification Operating Voltage: 4.8V ~ 6.0V Stall Torque(4.8V): 1.6Kgf.cm(21.0 oz.in) Stall Torque(6V): 2Kgf.cm(28.0 oz.in) Operating Speed(4.8V): 0.10 Sec/60? at no load...

Energy Monitor Shield
Price: $53.64
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Elecrow Item #: EL-COP77012DE -

Energy Monitor Shield is an Arduino-compatible expansion card designed for building energy monitoring system with LCD screen and an interface for connecting the wireless transceiver nRF24L01 +.FeaturesConnect up to three sensors AC (30-100A). Support for LCD Screen Nokia LCD5110Turn off the LCD backlight with a jumperTwo buttons to control (operate one analog pin) Interface to connect the transceiver to 2.4G nRF24L01 + GROVE-compatible connector: I2C Fully compatible with Ethernet Shield...

ESP8266 based WiFi module FCC/CE
Price: $7.27
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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...

ESP8266 Evaluation Board ESP-12
Price: $16.24
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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...

ESP8266 IOT Weather Station Kit
Price: $83.35
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Elecrow Item #: EL-CRT13450K -

When we want to get up early every morning to understand the weather conditions outside, or we want to DIY a weather station. What is more we want to be able to build a smart home product of the initial model, this ESP8266 IOT Weather Station Kit is based on esp8266 wifi function to achieve remote data transmission products, through the three sensors to collect temperature and humidity information and to achieve water droplets detection And UV intensity testing. Three sensor performance is...

Expansion Board for Raspberry Pi A+ B+ 2
Price: $74.49
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Elecrow Item #: EL-RPA98360A -

Arduino is a huge ecosystem, if something could enable Pi interface adapt to a standard Arduino pinouts, it will be able to access a variety of Arduino expansion board, to get more available resources. You may need this item- ARPI600. What's more, the ARPI600 also support XBee modules, make it easy to add wireless feature to your great project. Features Compatible with Arduino UNO, Leonardo, easy access to a variety of Arduino expansion board Onboard XBee interface, easy access to a variety...

Female Header Kit For Arduino UNO R3
Price: $0.56
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Elecrow Item #: EL-CCC12003K -

    These headers are made to work with the Arduino Uno R3,Leonardo and new Arduino boards going forward. They have longer contact length for clearing the USB-B connector and great for stacking multiple shields. This kit includes 4 headers (2 8-pin and 1 6-pin and 1 10-pin), enough to connect a shield to an Arduino UNO R3 Main Board. Include 1x 1x6 Female Header for Arduino 2x 1x8 Female Header for Arduino 1x 1x10 Female Header For Arduino ...

Finger Clip Heart Rate Sensor
Price: $3.31
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Elecrow Item #: EL-SOT00100F -

    This finger Clip Heart rate sensor uses an IR emitter and a receiver to detect pulse of finger. it can be used to monitor heart rate of patient and athlete. Note that the signal of this sensor is so small(about 100mv) that an amplifier maybe needed. The result can be sampled by Arduino and saved for analysis. The entire system has a high sensitivity, low power consumption and is very portable. Specification Power Supply:5V ...

Flame Sensor (5pcs pack)
Price: $2.17
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Elecrow Item #: EL-SPM21020F -

The flame sensor can be used to detect fire or other wavelength at 760 nm ~ 1100 nm light. In the fire-fighting robot game, the flame plays an important role in the probe, which can be used as the robot's eyes to find fire source or football. It can make use of fire-fighting robots, soccer robots.   The flame sensor's operating temperature is -25 degrees Celsius to 85 degrees Celsius, in the course of the flame it should be noted that the probe distance from the flame should not be too...

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...

Light Controlled Relay Module
Price: $9.19
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Elecrow Item #: EL-SPM22001S -

    This is a light controlled relay, you can set the relay on/off when the luminance is higher/lower than the illuminance you set.The peak voltage capability is upto 250V at 10A when AC and 30V at 10A when DC.     With this module, it will be much more easy to implement applications that needs auto power up/down with the illuminance varies.This module uses the photosensitive diode to detect the light, which has a more stable directivity than the...

Line Laser Emitter
Price: $3.46
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Elecrow Item #: EL-TEL2563L -

Such a little Laser emitter module is popular used in teaching, horizontal measurement and so on, the laser effective transmission distance can be upto 1km when drive current is 20 mA There are also laser emitters with cross spot or dot spot.SpecificationDiameter: 9mmMax power: 50 mW Life: >1,000 hCurrent&Voltage: 20mA@3VSpot: Line ...

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 ...

Mechanical Endstop Collision Switch
Price: $2.48
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Elecrow Item #: EL-SE63009CS -

    This is a Robot, model car helicopter crash or collision switch sensor module For Arduino, it normally outputs high voltage, but when the sensor is carsh something such as the wall, the on-board switch will be pressed, and the module outputs low. This module can be installed into any mobile platform to achieve collision detection function via 3P sensor cable and Arduino sensor expansion board connector. Specification Forefront of a switch module is installed there is a...

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...