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"DFRobot ROB0050 4WD MiniQ Arduino Robot V2.0"
DFRobot-ROB0050-4WD-MiniQ-Arduino-Robot-V2-0-DFRobot-ROB0050-P-This-4WD-MiniQ-mobile-robot-kit-is-especially-designed-for-education-and-learning-purposes-It-comes-fully-assembled-and-all-you-need-is-a-PC-with-Arduino-IDE-and-4x-AA-batteries-P-P-This-new-version-of-MiniQ-4WD-Arduino-Robot-Kit-comes-with-Arduino-Leonardo-controller-ATmega32u4-and-also-integrates-modules-such-as-RGB-LED-photosensitive-diode-infra-red-transmitters-infra-red-receivers-infra-red-line-tracking-sensors-li
Price: 96.05

"DFRobot DFR0225 Romeo V2 Arduino Robot Board with Motor Driver"
"DFRobot Romeo Arduino Robot Control Boards - DFRobot DFR0225, RoMeo V2 [R3] is an all-in-One Arduino-based robot board, it is especially designed for robotics applications and extended devices. Romeo benefits from the Arduino open-source platform. It is supported by thousands of open source projects and can easily be expanded with Arduino Shields. The integrated 2-way DC motor driver and Xbee socket allows you to start your project immediately without the need for an additional motor driver or wireless shield.Another improvement of Romeo V2 is that it supports stepper-motor control.The RoMeo V2 [R3] Arduino Robot Board behaves like the Arduino Leonardo based on the ATmega32u4 chip. You can program it directly from the Arduino IDE 1.0.1 or later version. Because of the ATmega32U4 as it's sole microcontroller, RoMeo V2 is simple and easy to use. The 32U4 chipset handles the USB directly, code libraries are available which allow the board to emulate a computer keyboard, mouse and more, using the very interesting USB-HID protocol! The best advantage is that ATmega32u4 has two serial ports which allows uploading sketches without removing wireless modules. Debugging is no longer a painful task.Version history: Romeo V2 has improvements to the power supply. It now has a switch to select power source either from USB or external power. DFRobot DFR0225 Romeo V2 Arduino Robot Board with Motor Driver"
Price: 29.94

"DFRobot DFR0351 Romeo BLE Mini Arduino Robot Control Board with Bl..."
"DFRobot Romeo Arduino Robot Control Boards - DFRobot DFR0351, The Romeo BLE mini is a simplified version of the Romeo board. It inherits all the functions of the Romeo BLE. Moreover, it's smaller.It has 8 digital pins, 4 analogue pins and integrates Bluetooth 4.0 wireless communication function. It can easily drive a mobile platform using two 1.2A H-bridged motor drivers to meet the needs of small scale robots. The Romeo BLE mini will prove to be a very good assistant to Makers. You can also check out the Bluetooth micro-controller selection guide to get more information.Version update: V2.0 has an upgraded motor driver IC. It replaces the HR8833 with a TB6612 motor driver chip. The TB6612 has the same control logic as the L298 motor driver and the code is compatible with the Romeo robot control board. It also has 2 interrupt pins now, so you can connect encoders to make a PID motor control. DFRobot DFR0351 Romeo BLE Mini Arduino Robot Control Board with Bluetooth 4.0"
Price: 21.54

"DFRobot DFR0305 Romeo BLE - Arduino Robot Control Board with Bluet..."
"DFRobot Romeo Arduino Robot Control Boards - DFRobot DFR0305, The Romeo family is an All-in-One Arduino-based control board especially designed for robotics applications from DFRobot. It benefits from the Arduino open source platform, it is supported by thousands of open source codes and can easily be expanded with your Arduino shields. The integrated 2-way DC motor driver and wireless socket allows you to start your own robot project immediately without the need for an additional motor driver. Romeo is also designed to have extra power for servos which need more current.Romeo is also featured with DFRobot's standard 3 Pin-out design and is compatible with Gravity series sensors and actuators. Hundreds of sensors are now plug-play with Romeo. You may also check the Bluetooth microcontroller selection guide to get more information.The Romeo BLE is a new member of Romeo Family. This robot controller inherits all functions of the Romeo all-in-one controller. The Romeo BLE has integrated Bluetooth 4.0, to give the robot control board the power of easy set up. Thanks to the Bluetooth 4.0, the Romeo BLE supports wireless sketch uploading which means you do not need to plug in a cable to upload new code. Just add a USB Bluno Link adapter and the Romeo BLE is ready to be updated.With Romeo BLE, all DFRobot's mobile platforms and robots can now be used with iOS devices by APP ""GoBle"". Also, the Romeo BLE supports Visual Programming APP (WhenDo). DFRobot DFR0305 Romeo BLE - Arduino Robot Control Board with Bluetooth 4.0"
Price: 35.94

"DFRobot DFR0004 Romeo - an Arduino Robot Control Board with Motor ..."
"DFRobot Romeo Arduino Robot Control Boards - DFRobot DFR0004, The Romeo family is an All-in-One Robot control board especially designed for robotics applications from DFRobot. It benefits from the Arduino open source platform, it is supported by thousands of open source codes, and can easily be expanded with your Arduino shields. The integrated 2 way DC motor driver and wireless socket allows you to start your own robot project immediately without the need for an additional motor driver. Not just has the motor driver, Romeo is also designed to have extra power for servos which need more current.Romeo is also featured with DFRobot's standard 3 Pin-out designed and compatible with Gravity series sensors and actuators. Hundreds of sensors are now plug-play with Romeo.This is the first member in Romeo family that was born in 2009. It is not only the very first Arduino Robot Controller, but also the first Arduino-derived board in the market. The current version of Romeo is based on Arduino Uno. It has built in 2x2A DC motor drivers and socket for Bluetooth / APC220 Radio Communication Module communications. The integrated IO sensor pinout allows it connect hundreds of different Gravity compatible sensors and modules. It has servo connector which is a plug&play. It is the ideal controller to build your own robot. DFRobot DFR0004 Romeo - an Arduino Robot Control Board with Motor Driver"
Price: 27.54

"DFRobot DFR0216 DFRduino UNO R3 - Arduino Compatible"
"DFRobot DFRduino - DFRobot DFR0216, DFRduino Uno V3.0 from DFRobot is a physical world computing board of small size for academics or development. It is a simple microcontroller board fully compatible with Arduino UNO R3 and the Arduino IDE open-source development environment. This environment implements the Processing / Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP). The open-source IDE can be downloaded for free (currently for Mac OS X, Windows, and Linux).This board features the ATmega16U2 programmed as a USB-to-serial converter. An added bonus is that the DFRduino is still using the DIP package AVR Chip. You could remove it to update or re-program the chip's firmware, or even to place it on a finished, more compact project.The DFRduino microcontroller uses different colours to feature I/O ports of different types: Red for Power Section. Blue for Analogue I/O. Green for Digital I/O. These colours match DFRobot sensor cables making it really easy to figure out where to connect sensors, or to identify which side is analogue or digital (green).The Arduino Uno is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analogue inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.This board has SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In future, shields will be compatible with all boards that use the AVR, operating with 5V and with the Arduino Due that operate with 3.3V. The second pin is reserved for future purposes. DFRobot DFR0216 DFRduino UNO R3 - Arduino Compatible"
Price: 16.01

"DFRobot DFR0132 DFRduino Pro Mini V1.3(8M3.3V328)"
"DFRobot DFRduino - DFRobot DFR0132, The 3.3V DFRduino Pro Mini 8MHz (Arduino Pro Mini Compatible) is a microcontroller board based on the ATmega328. It is a 3.3V DFRduino running the 8MHz boot-loader (select 'Arduino Duemilanove w/ 328' within the Arduino software).It is an advanced version of official Arduino Pro Mini. The DFRduino Pro mini has 8 analogue inputs compared with official 6. The rest bits are exactly the same.It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 8 analogue inputs, an on-board resonator, a reset button, and holes for mounting pin headers. A six pin header can be connected to an FTDI cable or DFRobot breakout board to provide USB power and communication to the board.The DFRduino Pro Mini is intended for semi-permanent installation in objects or exhibitions. The board comes without pre-mounted headers, allowing the use of various types of connectors or direct soldering of wires. The pin layout is compatible with the Arduino Mini.It is recommended that you choose one of following items to program and supply power for your Mini pro board. FTDI Basic Breakout 3.3/5V (Arduino Compatible) or USB Serial Light Adapter (Arduino Compatible). Note: Compared with DFRduino Pro Mini 8MHz (Arduino Pro Mini Compatible), this V1.3 one reverses pins of the programming interface. DFRobot DFR0132 DFRduino Pro Mini V1.3(8M3.3V328)"
Price: 9.82

"DFRobot DFR0159 DFRduino Pro Mini V1.3(16M5V328)"
"DFRobot DFRduino - DFRobot DFR0159, The 5V DFduino Pro Mini V1.3 (Arduino Pro Mini Compatible) is a microcontroller board based on the ATmega328. It is a 5V DFduino running the 16MHz boot-loader (select 'Arduino Duemilanove w/ 328' within the Arduino software).It is an advanced version of official Arduino Pro Mini. The DFRduino Pro mini has 8 analogue inputs compared with official 6. The rest are exactly the same.It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 8 analogue inputs, an on-board resonator, a reset button, and holes for mounting pin headers. A six pin header can be connected to an FTDI cable or DFRobot breakout board to provide USB power and communication to the board.The DFRduino Pro Mini is intended for semi-permanent installation in objects or exhibitions. The board comes without pre-mounted headers, allowing the use of various types of connectors or direct soldering of wires. The pin layout is compatible with the Arduino Mini.It is recommended that you choose one of following items to program and supply power for your Mini pro board. The FTDI Basic Breakout 3.3/5V (Arduino Compatible) or the USB Serial Light Adapter (Arduino Compatible). Note: Compared with DFduino Pro Mini V1.2, this V1.3 reverses the pins of the programming interface. DFRobot DFR0159 DFRduino Pro Mini V1.3(16M5V328)"
Price: 11.83

"DFRobot DFR0010 DFRduino Nano V3.1 (Arduino Nano Compatible)"
"DFRobot DFRduino - DFRobot DFR0010, The DFRduino Nano USB Microcontroller V3.1 (ATMega 328) is a breadboard-ready version of the Arduino mini with integrated USB. It has everything that the Diecimila has (electronically) with more analogue input pins and an on-board +5V AREF jumper.The nano's pin layout works well with the Mini or the Basic Stamp (TX, RX, ATN, GND on one top, power and ground on the other). It automatically senses and switches to the higher power supply, so there is no need for a power select jumper. The DFRobot DFRduino Nano USB Microcontroller V3.1 (ATMega 328) can be powered via the mini-B USB connection, 6 to 20V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27). DFRobot DFR0010 DFRduino Nano V3.1 (Arduino Nano Compatible)"
Price: 16.01

"DFRobot DFR0125 DFRduino Ethernet Shield V2.1 (Support Mega and Mi..."
"DFRobot DFRduino - DFRobot DFR0125, This version, V2.1, of the DFRobot DFRduino Ethernet Shield is not only compatible with Mega 1280 and 2560, but also provides a Micro SD card slot for reading/writing. DFRduino Ethernet Shield V2.1 is fully compatible with Arduino Ethernet Shield - with the official ethernet library, you can do exactly the same thing as the original one, but at a more affordable price.This Ethernet Shield provides an Arduino controller board with internet access. It is based on the Wiznet W5100 ethernet chip. The Wiznet W5100 provides a network (IP) stack capable of both TCP and UDP. It supports up to four simultaneous socket connections. You can use the Ethernet library to write sketches which connect to the internet using the shield. You can connect the Ethernet Shield to an Arduino board using long wire-wrap headers which extend through the shield. This keeps the pin layout intact and allows another shield to be stacked on top.Arduino uses digital pins 10, 11, 12, and 13 (SPI) to communicate with the W5100 on the ethernet shield. These pins cannot be used for general I/O. The shield provides a standard RJ45 ethernet jack. The reset button on the shield resets both the W5100 and the Arduino board. DFRobot DFR0125 DFRduino Ethernet Shield V2.1 (Support Mega and Micro SD)"
Price: 13.78

"DFRobot DFR0299 DFPlayer - A Mini MP3 Player For Arduino"
DFRobot-DFR0299-DFPlayer-Mini-MP3-Player-for-Arduino-DFRobot-DFR0299-P-The-DFPlayer-Mini-is-a-small-and-low-cost-MP3-module-player-with-a-simplified-output-that-connects-directly-to-the-speaker-The-module-can-be-used-as-a-stand-alone-module-with-attached-battery-speaker-and-push-buttons-or-used-in-combination-with-an-Arduino-UNO-or-similar-with-RX-TX-capabilities-P-P-The-DFPlayer-perfectly-integrates-a-hard-decoding-module-which-supports-common-audio-formats-such-as-MP3-WAV-and-WMA-
Price: 6.82

"DFRobot KIT0126 Bone Conduction Kit"
DFRobot-KIT0126-Bone-Sound-Conduction-Kit-DFRobot-KIT0126-P-Bone-conduction-is-a-method-of-sound-transmission-Sound-is-converted-into-different-frequencies-of-mechanical-vibration-and-transmitted-through-human-skull-to-the-bone-labyrinth-inner-ear-lymphatic-transmission-helix-auditory-nerve-and-auditory-centre-P-P-This-kit-consists-of-a-bone-conduction-speaker-a-speaker-driver-board-and-accessories-It-is-intended-to-help-understand-the-principles-of-bone-conduction-technology-makin
Price: 27.29

"DFRobot TEL0108 Bluetooth Audio Receiver and Playback Module (Blue..."
DFRobot-TEL0108-Bluetooth-Audio-Receiver-and-Playback-Module-Bluetooth-4-0-DFRobot-TEL0108-P-This-Bluetooth-4-0-audio-receiver-module-also-includes-a-USB-port-and-a-TF-card-slot-With-its-pre-amp-level-output-it-can-drive-headphones-or-a-3W-speaker-directly-You-can-also-add-an-active-power-amplifier-and-connect-a-loudspeaker-for-more-volume-P-P-The-module-supports-MP3-WMA-WAV-and-lossless-FLAC-audio-formats-It-supports-playback-from-either-a-TF-card-or-USB-flash-drive-or-via-Blueto
Price: 13.78

"DFRobot TEL0002 Bluetooth Adapter Mini"
DFRobot-TEL0002-Bluetooth-Adapter-Mini-DFRobot-TEL0002-p-This-version-4-0-Bluetooth-adapter-has-a-bandwidth-of-approximately-3Mbps-and-is-widely-used-for-small-file-transfer-less-than-10MB-for-pictures-ring-tones-e-books-manuscripts-etc-The-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-p-p-Bluetooth-is-a-type-of-wireless-network
Price: 3.48

"DFRobot KIT0069 Bluetooth 4.0 RGB LED Strip Kit (Support iPhone & ..."
DFRobot-KIT0069-Bluetooth-4-0-RGB-LED-Strip-Kit-Support-iPhone-Android-DFRobot-KIT0069-P-With-just-a-mobile-device-that-has-Bluetooth4-0-BLE-you-can-easily-control-every-single-one-of-the-180-LEDs-in-the-strip-even-program-the-LEDs-individually-to-react-to-music-P-P-What-s-more-the-kit-can-be-divided-conveniently-into-separate-parts-so-you-can-make-more-use-in-your-Arduino-project-wherever-you-want-to-P-DFRobot-KIT0069-Bluetooth-4-0-RGB-LED-Strip-Kit-Support-iPhone-Android-
Price: 123.89

"DFRobot TEL0026 Bluetooth 2.0 Module V3 For Arduino"
"DFRobot Bluetooth 2.0 Modules For Arduino - DFRobot TEL0026, The DF-BluetoothV3 Bluetooth module uses a unique double-board design to help prevent electrostatic damage to the module. It is designed to have two DC power inputs: a wide voltage supply (3.5 to 8V) and a 3.3V power supply, making it suitable for a wide variety of applications.STATE LINK is indicated by a bright LED which is used to display module status and connection status (STATE state: Search state (high 104ms 342ms 2.9Hz cycle flicker) connection status (high 104ms period 2s 0.5Hz flashing), LINK state: paired.) It has a built-in on-board antenna which provides high quality signals.A DIP switch is used to set the module status, LED Off to turn off the LINK light to enter power-saving mode, AT Mode allows the module to enter AT command mode. AT commands can modify the baud rate and the master and slave mode.The module has been tested for compatibility with most Bluetooth adapters on the market (Bluetooth dongle, including laptops and mobile phones). The module has been tested with, and is compatible with Android Phones. Two modules can be used as a 'pair' to produce a transparent serial data communication link. DFRobot TEL0026 Bluetooth 2.0 Module V3 For Arduino"
Price: 18.65

"DFRobot TEL0023 Bluetooth 2.0 Bee Module For Arduino"
"DFRobot Bluetooth 2.0 Modules For Arduino - DFRobot TEL0023, This DFRobot Bluetooth Bee Bluetooth wireless module employs the XBEE design. Its pinout is compatible with XBEE making it suitable for all microcontrollers, such as Arduino, that have a 3.3V power output. The module also supports AT commands for parameter setting when used with an XBEE adapter, not included.The Bluetooth Bee module comes with an on-board antenna that provides excellent signal quality. The module acts like a transparent serial port and works with a variety of Bluetooth adapters and Bluetooth phones.The module has been tested with all the Bluetooth adapters on the market including laptops and mobile phones.This Arduino Bluetooth module fits the Gravity Arduino IO Expansion shield, Gravity Mega Sensor Shield, Romeo V2 and DFRduino Leonardo which have an XBEE socket. DFRobot TEL0023 Bluetooth 2.0 Bee Module For Arduino"
Price: 19.34

"DFRobot ROB0143 Bionic Robot Hand (Right)"
"DFRobot Bionic Robot Hands - DFRobot ROB0143, This bionic robot hand is made from acrylic material and has 5 micro metal servos, joints and a base.Its special mechanical structure allows every finger and thumb to be controlled separately within its range. Each digit has a spring damping structure that protects it from excessive mechanical stress. With its 24-channel servo driver, all actions can be controlled via PC software, supporting online debug and wireless control.The bionic robot hand can be controlled by Arduino and other Servo controllers. It can grasp a 500g object and it is the best option for DIY robot hand demonstrations. The servos can be connected directly to the Arduino IO expansion shield or the Romeo robot microcontroller. DFRobot ROB0143 Bionic Robot Hand (Right)"
Price: 221.33

"DFRobot ROB0142 Bionic Robot Hand (Left)"
"DFRobot Bionic Robot Hands - DFRobot ROB0142, This bionic robot hand is made from acrylic material and has 5 micro metal servos, joints and a base.Its special mechanical structure allows every finger and thumb to be controlled separately within its range. Each digit has a spring damping structure that protects it from excessive mechanical stress. With its 24-channel servo driver, all actions can be controlled via PC software, supporting online debug and wireless control.The bionic robot hand can be controlled by Arduino and other Servo controllers. It can grasp a 500g object and it is the best option for DIY robot hand demonstrations. The servos can be connected directly to the Arduino IO expansion shield or the Romeo robot microcontroller. DFRobot ROB0142 Bionic Robot Hand (Left)"
Price: 221.33

"DFRobot DFR0575 Beetle ESP32 Microcontroller"
"DFRobot Beetle Microcontroller, BLE and Beetle - DFRobot DFR0575, The Beetle-ESP32 Microcontroller is only 35 x 34mm (1.38 x 1.34in.) in size and is a simplified version of FireBeetle-ESP32, specially designed for electronic engineering fans and DIY lovers. It is equipped with 4 analogue ports, 4 digital ports, UART and I2C interfaces, making it a perfect replacement for many physically larger boards.The microcontroller enables users to directly burn programs via the on-board USB interface and has Bluetooth and WIFI integrated in the microcontroller for supporting more applications.Features:Small size: only 35 x 34mmDirectly download and debug programs via Micro USB without a programmerLarge-scale I/O ports with gold plating, easy to twist wire on it or sew on to clothes with wires, no need to solderA group of gold plated power interfaces of honeycomb type, convenient to useIntegrated WIFI and Bluetooth DFRobot DFR0575 Beetle ESP32 Microcontroller"
Price: 14.62

"DFRobot DFR0339 Beetle BLE - The smallest Arduino bluetooth 4.0 (BLE)"
"DFRobot Beetle Microcontroller, BLE and Beetle - DFRobot DFR0339, The Beetle BLE (Formerly known as the Bluno Beetle) is an Arduino Uno-based board with Bluetooth 4.0 (BLE). It is probably the smallest Arduino BLE board in the market. It uses standard Arduino IDE to upload codes without any extra library and drivers. The Beetle BLE is another milestone in the Beetle line, which gives DIY users more options in their project designs. It is fully compatible with Bluno in instructions and procedures, and supports Bluetooth HID and ibeacon modes.The Beetle BLE offers a super-tiny and low-cost Arduino with Bluetooth 4.0. The Beetle BLE can be used for disposable projects, such as DIY projects, workshops, gift projects, E-Textiles wearable and educational applications. For students and makers who can not afford too much on hardware purchasing, Beetle can be a great solution.Just like a native Arduino board, but with Bluetooth 4.0. An APP called Play Bluno is available on IOS and Android which gives quick access to this little tiny board. It not only supports USB programming, but also wireless uploading. With the V-shaped gilded I/O interface, it is convenient to simply twist conductor wires on to it, which could a good choice in the wearable market. DFRobot DFR0339 Beetle BLE - The smallest Arduino bluetooth 4.0 (BLE)"
Price: 13.14

"DFRobot DFR0282 Beetle - The Smallest Arduino"
"DFRobot Beetle Microcontroller, BLE and Beetle - DFRobot DFR0282, Beetle is one of the smallest Arduino Leonardo boards available on the market. It offers minimal size without compromising functionality. It has an Atmel AtMega32u4 running at a clock speed of 16MHz and has plenty of interfaces: 10 digital pins, 5 analog pins and 4 PWM pins. To further make it user-friendly, it is compatible with Micro USB so that direct programming and testing is no longer a headache. The ATmega32U4 comes pre-burned with a bootloader that allows you to upload any new code that is applicable to Arduino Leonardo.As the smallest Arduino Leonardo, it enjoys similar powerful functions. Beetle aims to solve the problems of a low-cost controller, like ease-of-use and provides a low-cost solution for disposable projects. It is ideal for applications like DIY projects, workshops, gift projects, E-textiles and educational applications for students who can not afford spending too much on hardware. DFRobot DFR0282 Beetle - The Smallest Arduino"
Price: 8.50

"DFRobot DFR0265 Gravity IO Expansion Shield for Arduino V7.1"
"DFRobot Gravity Expansion Shield and Sensors for Arduino - DFRobot DFR0265, The DFRobot Expansion Shield introduced to the market the famous colour-code for sensors and actuators input and output. The 3-pin format for Signal, Voltage and Ground is extremely useful, especially when used altogether with the increasingly large range of modules, sensors and devices that just simply plug in.The board includes power input for salvaged power supplies or laboratory power supplies and an Xbee socket for multipurpose wireless connectivity such as RF, wireless, Bluetooth. This version includes a hardware voltage setting, via a jumper, to allow compatibility with a larger range of components operating at 3.3V like Raspberry pi, Due and others.It also includes a Servo external power output with a protective diode, enabling you to control a large range of servos from your Arduino. This version also features a convenient switch that lets you program your ATmega328 boards like UNO, while you have another serial device connected like an Xbee. Switch it, program it and get it back up and running with another switch. You don't need to disassemble your hardware or wiring. DFRobot DFR0265 Gravity IO Expansion Shield for Arduino V7.1"
Price: 8.34

"DFRobot DFR0034 Gravity: Analog Sound Sensor For Arduino"
"DFRobot Gravity Expansion Shield and Sensors for Arduino - DFRobot DFR0034, This DFRobot Analogue Sound Sensor is compatible with Arduino. A Sound Sensor is typically used to detect the loudness of a sound in its surrounding area.The Arduino can be programmed to collect the sensor's output signal and react accordingly. If you add a buzzer, etc., you could use the sound sensor make an interactive project such as a 'clap and buzz' to find lost keys or the TV remote control. The sensor works best with DFRobot's Audio Analyzer module.DFRobot's IO expansion shield is the best match for connecting the sensor to your Arduino. As the sound sensor can work at 3.3V it is also compatible with Raspberry Pi, Intel Edison, Joule and Curie. DFRobot DFR0034 Gravity: Analog Sound Sensor For Arduino"
Price: 4.18

"DFRobot SEN0161 Gravity: Analog pH Sensor / Meter Kit For Arduino"
"DFRobot Gravity Expansion Shield and Sensors for Arduino - DFRobot SEN0161, What is pH? 'pH' stands for 'power of hydrogen', which is a measurement of hydrogen ion concentration. The pH scale ranges from 1 to 14, with 7 considered to be neutral. A pH less than 7 is said to be acidic and solutions with a pH greater than 7 are basic or alkaline.Need to measure water quality and other parameters but haven't got a low cost pH meter? The DFRobot analogue pH meter, has been specially designed for Arduino controllers and has convenient and practical 'Gravity' connector plus a host of useful features. It offers instant connection to your probe and your Arduino to get pH measurements at ± 0.1pH accuracy at 25℃. For most hobbyist this is a great accuracy range and it's low cost makes it a great tool for bio-robotics and other projects!The sensor has an LED which works as the power indicator, a BNC connector and PH2.0 sensor interface. To use it, simply connect the pH sensor with BNC connector, and plug the PH2.0 interface into the analogue input port of any Arduino controller.The sensor comes in a compact plastic box with foam for better mobile storage. Build your own pH meter gadget, or a water monitoring station for your water tanks. Use it for your aquaponics or fish tanks or other materials that need accurate pH measurements. DFRobot SEN0161 Gravity: Analog pH Sensor / Meter Kit For Arduino"
Price: 27.84

"DFRobot TEL0118 Gravity: UART OBLOQ – IOT Module (Microsoft Azure)"
"DFRobot Gravity Expansion Shield and Sensors for Arduino - DFRobot TEL0118, This Gravity: UART OBLOQ module is a WiFi to serial device. It faces to non-professional developers, supports standard MQTT protocol IoT service such as Microsoft Azure IoT. Using the OBLOQ module, you can quickly build IoT applications without having a complex background knowledge of the IoT.In this way, makers can really focus on the purpose of creating interesting things on the IoT. OBLOQ is designed using the ESP8266 WiFi chip. It has a compact size, low price, simple interface, plug and play feature, and it works stably under the 3.3V to 5V control system.If you don't know how to use the Internet of Things (IoT), the DFRobot OBLOQ module will be ideal for connecting you to the IoT world. The core of IoT is user experience. It integrates embedded system technology, mobile technology and network technology all together, making up a smart system. It unifies hardware, software and network services, makes them become a whole. DFRobot TEL0118 Gravity: UART OBLOQ – IOT Module (Microsoft Azure)"
Price: 9.74

"DFRobot SEN0114 Gravity: Analog Soil Moisture Sensor For Arduino"
"DFRobot Gravity Expansion Shield and Sensors for Arduino - DFRobot SEN0114, The DFRobot soil moisture sensor can read the amount of moisture present in the soil surrounding it. It's ideal for monitoring an urban garden, or your pet plant's water level. This is a must have component for a IOT garden!The soil moisture sensor uses Immersion Gold to protect the nickel probes from oxidation. The sensor uses two probes to pass current through the soil and then it reads that resistance to calculate the moisture level. More water makes the soil conduct electricity more easily (less resistance), while dry soil conducts electricity poorly (more resistance). The sensor will be helpful to remind you to water your indoor plants or to monitor the soil moisture in your garden.The sensor has a Gravity Interface to allow plug & play operation. The DFRobot Arduino IO Expansion Shield is the best option for connecting the sensor to your Arduino. As this sensor can work at 3.3V it is compatible with Raspberry Pi, Intel Edison, Joule and Curie.Note: If you are going to use the sensor in very humid soil, it may suffer from surface erosion and for this application the use of the DFRobot Analogue Capacitive Soil Moisture Sensor- Corrosion Resistant is rocommended. DFRobot SEN0114 Gravity: Analog Soil Moisture Sensor For Arduino"
Price: 2.64

"DFRobot SEN0203 Gravity: Heart Rate Monitor Sensor for Arduino"
"DFRobot Gravity Expansion Shield and Sensors for Arduino - DFRobot SEN0203, The DFRobot heart rate sensor is a thumb-sized heart rate monitor designed for Arduino micro-controllers. This heart rate monitor sensor is a pulse sensor which is developed based on PPG techniques. This is a simple and low-cost optical technique that can be used to detect blood volume changing in the micro-vascular bed of tissues. It is relatively easy to detect the pulse component of the cardiac cycle according to this theory.The sensor has two holes that you can use to attach to the belt. You can wrap it on your finger, wrist, earlobe or other areas where it has contact with your skin.The sensor has a Gravity interface allowing plug & play connection. The DFRobot IO sensor shield is the best option to connect this heart rate sensor to your Arduino or other micro-controllers. The sensor can also be used with Raspberry Pi, Intel Edison, Joule and Curie by virtue of its 3.3V input voltage. DFRobot SEN0203 Gravity: Heart Rate Monitor Sensor for Arduino"
Price: 15.59

"Bit:Bot XL micro:bit Starter Bundle"
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Price: 47.94

"Orangepip Q4953 Orangepip Enclosure for Kona328"
Orangepip-Q4953-Orangepip-Enclosure-for-Kona-328-Orangepip-Q4953-Orangepip-U-Shell-1-P-A-clip-together-2-U-shell-enclosure-for-the-Kona-328-P-P-The-enclosure-has-been-custom-manufactured-from-3mm-acrylic-capped-white-ABS-and-3mm-gloss-orange-HIPS-by-CamdenBoss-P-P-A-title-Need-something-more-than-a-standard-enclosure-href-brands-camdenboss-modifications-IMG-alt-Need-something-more-than-a-standard-enclosure-src-static-rapidonline-com-img-camdenboss-camdenbossmods-png-wi
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