Arduino sensors

This small 10-DOF sensor module GY-91 is more compact than the GY-80 module.
The module uses a unique MPU-9250 chip combination with built-in 3-axis gyroscope, 3-axis accelerometer, digital compass and BMP280 enhanced barometric pressure sensor.
The MPU-9250, delivered in a 3x3x1mm QFN package, is the smallest 9-axis MotionTracking device in the world and incorporates the latest InvenSense design innovations, allowing dramatically reduced chip size and power consumption, while improving the performance and the cost. Enhancements include low-power accelerometer mode support with only 6.4μA of and provides improved 16-bit compass data resolution (0.15 μT per LSB).

M12 Inductive Proximity Sensor NPN DC 6-36V LJ12A3-4-Z/BX 3D Printer features:
- This sensor can be configured as Z axis auto level
- Inductive proximity sensor detection switch LJ12A3-4-Z / BX
- NPN DC6-36V
- Often used for 3D printer bed leveling
- Typical application: 3D printer bed level sensor
- Type of Cylindrical DC cable 3 type of cable (black, brown, blue)
- Inductive sensor type
- NPN NO (Normal Open)
- Detecting Distance 4mm
- DC supply voltage 6-36V
- 300mA current output
- 0.5KHz response frequency
- Detects iron / aluminum
- Operating temperature -25 ° C to + 55 ° C (Condition non-freezing)
- Head diameter 12 mm
- Size 6.2 x 2cm
- Cable length 100cm

- Immerse the probe in the fish tank to measure the water temperature Digital Thermometer with External Temperature Probe features:
- Cable length: 1m
- LCD screen
- Temperature range: -50 C ~ + 70C
- Powered by 2 batteries x LR44 / AG13 button (included)
- Cable length: approx.100cm
- External Dimensions: 48 x 28.5 x 15.2 mm
- Dimension LCD screen: 35 x 16 mm
- Color: Black
- Used to measure the temperature in: the rooms, the aquarium, terrarium in the heating system, in the car, fridge, freezer

Encapsulated with water resistant stainless steel with sensor dimensions 5,5 * 50mm, cable length 10m. DS18B20 Digital Temperature Sensor Probe 10m features:
- Based on the DS18B20 chip
- Supply voltage: 3 ~ 5.5V
- Consumption <5mA
- Measuring Range: -55 °C to 125 °C
- Accuracy: +/- 0,5ºC
- Outputs: - GND black
      - Vcc red
      - Yellow digital output
- Inocidable steel
- Cable length: 10m

Characteristic: - Diameter: 35mm
- Frequency: 2.3 kHz
- Impedance (resonance): 300 Ohm
- Capacity (at 1kHz): 25,000 pF
- Dimensions: 35x0.50mm

When the piezoelectric ceramic shock will generate an electrical signal,
the analog port of the Arduino controller may perceive weak vibration signals. Can also be done with jobs related to vibration interactions, such as electronic drums.

Speed sensor module for Arduino motors features:
- Slot-type optocoupler sensor, slot width: 10 mm.
- The encoder module is a device that can help you in the creation of your robotics and automation project, whether you want to know the speed of a motor or the exact position of it.
- Output Out - Emits a low level when there is no block in the slot, otherwise it produces a high level. The operating mode: - When the sensor is blocked the OUT output is high
- Power supply: 3.3-5V - Current consumption 15 mA max.
- PCB dimensions: 25 x 20 mm

Inductive Proximity Sensor PL-05N NPN Limit Switch is used for controlling machinery as part of a control system, as a safety interlock, or to count objects passing a point. Inductive proximity sensor PL-05N 5mm with NPN output features:
- Manufacturer: Fotek,
- Square Type,
- Sensing distance: 5mm,
- Operating voltage: 10 - 30 VDC,
- Response frequency: 800Hz,
- Output method: NPN, 150mA load,
- Hysteresis: <10% of sensing distance,
- Protection degree: IP67,
- Working temperature/Hum: -20ºC - +80ºC, 35% - 90% RH,
- Body dimension: 30.5x17.9x10.2mm (LxWxH),
- Mounting Method: Flush,
- Sensing Direction: Horizontal,
- Materia Housing: High-impact plastic,
- Screw hole: 3.2mm, Pitch: 10.5mm,

Inductive Proximity Sensor PL-05P PNP Limit Switch is used for controlling machinery as part of a control system, as a safety interlock, or to count objects passing a point. Inductive proximity sensor PL-05P 5mm with PNP output features:
- Manufacturer: Fotek,
- Square Type,
- Sensing distance: 5mm,
- Operating voltage: 10 - 30 VDC,
- Response frequency: 800Hz,
- Output method: PNP, 150mA load,
- Hysteresis: <10% of sensing distance,
- Protection degree: IP67,
- Working temperature/Hum: -20ºC - +80ºC, 35% - 90% RH,
- Body dimension: 30.5x17.9x10.2mm (LxWxH),
- Mounting Method: Flush,
- Sensing Direction: Horizontal,
- Materia Housing: High-impact plastic,
- Screw hole: 3.2mm, Pitch: 10.5mm,

Led infrared sensor.
Detector of the source of fire or flame, can detect a flame or wavelength 760 nm-1100 nm
Particularly sensitive to the flame spectrum.
This optical flame sensor is a device that detects the existence of combustion by the light emitted by it.
Infrared LED Flame Sensor 5mm features:
- Range of light, Distance of 80 cm.
- Angle detection of about 60 degrees,
- This light can be detected by an optical sensor,
- Can be captured by digital inputs and analog inputs of Arduino.

Led module infrared sensor for Arduino
Detector of the source of fire or flame, can detect a flame or wavelength 760 nm-1100 nm
Particularly sensitive to the flame spectrum.
This optical flame sensor is a device that detects the existence of combustion by the light emitted by it.
Infrared LED Flame Sensor 5mm module features:
- 4 Pins Output:
    - A0: analog output
    - D0: digital output
    - GND: ground connection
    - VCC: 5V module power
- Range of light, Distance of 80 cm.
- Angle detection of about 60 degrees,
- This light can be detected by an optical sensor,
- Can be captured by digital inputs and analog inputs of Arduino.

UVM-30A sensor module suitable for any location and requires stable and precise measurement of UV light.
Ideal for Arduino projects.
Black UV sensor module UVM-30 for Arduino features:
- Operating voltage: 3-5 VDC,
- Voltage input: DC 0-1 VDC,
- 3-pin connector:
- GND (-): ground connection,
- Out: sensor output signal,
- VCC (+): sensor supply,
- Measurement accuracy: +/- 1UV index,
- Working current: 0.06mA (standard) / 0.1mA (max.),
- Response wavelength: 200-370 nm,
- Working temperature: -20ºC - + 85ºC,
- PCB size: 28x12mm.

Encapsulated with water resistant stainless steel with sensor dimensions 5,5 * 50mm, cable length 5m. DS18B20 Digital Temperature Sensor Probe 5m features:
- Based on the DS18B20 chip
- Supply voltage: 3 ~ 5.5V
- Consumption <5mA
- Measuring Range: -55 °C to 125 °C
- Accuracy: +/- 0,5ºC
- Outputs: - GND black
      - Vcc red
      - Yellow digital output
- Inocidable steel
- Cable length: 5m

The resistance of the sensor has a force measurement range of 0-10 kg
Its resistance varies depending on how much pressure is applied to the detection area, the greater the force, the lower the resistance.
Peel and stick the rubber backing on the other side of the detection area to mount.
It can detect the applied force in the detection area in the range of 0g-10kg.
Circular force sensing resistor features:
- Detection area: 1.27cm / 0.5 inches
- Output signal: passive variable resistance
- Force detection range: 0 g ~ 10 kg
- Length: 6 cm / 2.36 inches
- Width: 1.9cm / 0.75 inches

This detection module combines a phototransistor and an LED that, when placed on a finger or ear lobe, provides a reading.
By reading this signal you can interpret a change in the signal as a heartbeat.
Keep in mind that this is a sensitive module and you will experience the noise from home lights and other sources, since minimizing the lighting of the unit will help get the readings.
Heartbeat sensor Arduino features:
- Connection pins:
- S: Analog output
- (+): Power supply 3-5 VDC,
- (-): GND.
- Length: 18mm,
- Width: 18mm,
- Height: 4mm,
- Operating temperature: -40ºC to + 85ºC.

Ultraviolet ray detection module 200-370nm with a supply voltage of 3.3-5 VDC and a very low consumption of 0.1mA.
100% compatible UNO module.
Characteristic:
- Operating voltage: 3.3-5 VDC
- Output voltage: 0-1 VDC
- 3-pin connector:
- OUT: output signal
- VCC: Supply voltage
- GND: Ground connection - Test accuracy: ± 1UV INDEX
- Current: 0.06mA (typical), 0.1mA (maximum)
- Wavelength of the response: 200nm-370nm (ultraviolet rays) - Response time: less than 0.5 seconds
- Operating temperature: -20ºC - + 85ºC
- Size: 19.80 x 15mm

The optical (reflective) module sensor with LM393 comparator, which detects obstacles with high accuracy. The ideal detector for obstacle detection for the installation of intelligent robots.TCRT5000: reflective optical sensor that has a compact construction where the light emitter and receiver are placed in the same direction to detect the presence of an object using infrared reflection on the object. The transmitter is an infrared LED and the receiver is a phototransistor. The sensor allows the detection of an object at a distance of up to 3.5 cm from the white paper and 1 cm from the person's finger.

Holder for ultrasonic, distance meter HC-SR04. Ideal for installing the sensor on mobile platforms such as robots, vehicles, etc.

The sensor measures the current flowing in the cable without cutting it. The measurement is made on a single insulated wire, the output is an analog voltage from 0 to 1 V. Sensor SCT-013-030, Non-Invasive 30A AC Current Meter features:
Input current: 0 to 30A AC Output voltage: 0 to 1 V AC Built-in load resistance: 62 Ω Winding ratio: 1800: 1 Operating temperature range: -25 ° C to 70 ° C Cable length: 1 m Sensor weight: approximately 45 g Sensor SCT013-030 datasheet

Sensor used for measuring of the object acceleration in 3 axis in the range of either ±2g, ±4g or ±8g. It is powered with 1.95V to 3.6V. What sets this module apart is its user-friendliness, compatible size and low power consumption. it comes with headers attached

This accelometer is powered with 1.8 to 3.6V and consumes only up to 320 uA of current. The circuit fits on the small 18mm on 18mm board and is fully compatible with Arudino

This board features and extremely low power LIS331HH accelerometer. The unit is a MEMS three axis linear accelerometer with a I2C- SPI serial interface enabling use with embedded applications. The range of measurement includes three options +-6g/+-12g/+-24g and enables datalogging with output rates fro 0.5 Hz to 1kHz. Check this and plenty of other accelerometers in our offering of both Sparkfun and other producers

Sensor used for measuring of the object acceleration in 3 axis in the range of either ±2g, ±4g or ±8g. It is powered with 1.95V to 3.6V. What sets this module apart is its user-friendliness, compatible size and low power consumption. it comes with headers attached

It is a version without headers of a popular BOB-09868 from SparkFun.

In our offer, we have a versuib with headers (SP0001) and with QWIC system (SP0005).

Sensor used for measuring of the object acceleration in 3 axis in the range of either ±2g, ±4g or ±8g. It is powered with 1.95V to 3.6V. What sets this module apart is its user-friendliness, compatible size and low power consumption. It comes with QWIIC connectors

This tiny little board features two chips from Maxim Integrated: MAX32664 and MAX30101. The 30101 Oximetry module  is the sensor on board responding for both oximetry and heart rate sesnsing. The MAX32664 is equipped with a Cortex M4 handling algorithimc calculations, digital filtering and automatic gain control. The board comes with I2C and SparkFun has provided to it Qwiic connectors for ease of use.

Photoelectric sensor standard, reliable assurance of 1 million units per year.

· Industry's top class built-in amplifier

· Guaranteed low-temperature operation that can be used in freezing warehouse

· Improvement of coincidence between optical and mechanical axis.

· Protection of sensor even if wiring mistake occurs output reverse protection function is carried (we add diode for reverse connection protection to output line).

12VDC plastic solenoid valve. Normally closed. Liquid can flow in one direction and a minimum pressure of 0.02Mpa (3 PSI) is required. This liquid valve would be a great addition to your robotic gardening project. There are two 1/2 ″ outlets. Normally, the valve is closed. When 12VDC is applied to the two terminals, the valve can be opened and pushed.

Mini electricity generator, built base on a turbine and an electric generator that converts kinetic energy into electricity. The generator output is rectified and regulated for a maximum of 12V. Please note -if we want to generate more current, the turbine will oppose the greater resistance to the flow of water, and the voltage may drop if the water flow is not sufficient. This generator is made of plastic and the turbine is totally isolated from the generator and rectifier, the outputs are 1/2 "usually found in domestic pipes.

The INA219 breakout board can be powered by the 5V or 3V pin on your Arduino and communicates via I2C. If you want to sense an Direct Current (DC) with high accuracy and voltage too, we suggest you to use this sensor. I2C sensor can easily interfaced with arduino. It uses 4 pins only.

The module uses a 24-bit high precision A / D conversion chip HX711.
The input circuit can be configured to provide a bridge.
The electric bridge voltage sensor model (such as pressure, weight) is an ideal sampling module with high precision and low cost. Module features: - Two selectable differential input channels
- Active low noise PGA with selectable gain of 32, 64 and 128
- Power supply regulator for load cell and ADC analog power supply
- Oscillator on chip that does not require external component with optional external glass
- Power-on-reset on the chip
- Simple serial control and serial interface: controls driven by pins, programming is not required
- Output data rate 10SPS or 80SPS selectable

The module uses a 24-bit high precision A / D conversion chip HX711.
The input circuit can be configured to provide a bridge.
The electric bridge voltage sensor model (such as pressure, weight) is an ideal sampling module with high precision and low cost. Module features: - Two selectable differential input channels
- Active low noise PGA with selectable gain of 32, 64 and 128
- Power supply regulator for load cell and ADC analog power supply
- Oscillator on chip that does not require external component with optional external glass
- Power-on-reset on the chip
- Simple serial control and serial interface: controls driven by pins, programming is not required
- Output data rate 10SPS or 80SPS selectable

The module uses a 24-bit high precision A / D conversion chip HX711.
The input circuit can be configured to provide a bridge.
The electric bridge voltage sensor model (such as pressure, weight) is an ideal sampling module with high precision and low cost. Module features: - Two selectable differential input channels
- Active low noise PGA with selectable gain of 32, 64 and 128
- Power supply regulator for load cell and ADC analog power supply
- Oscillator on chip that does not require external component with optional external glass
- Power-on-reset on the chip
- Simple serial control and serial interface: controls driven by pins, programming is not required
- Output data rate 10SPS or 80SPS selectable

The module uses a 24-bit high precision A / D conversion chip HX711.
The input circuit can be configured to provide a bridge.
The electric bridge voltage sensor model (such as pressure, weight) is an ideal sampling module with high precision and low cost. Module features: - Two selectable differential input channels
- Active low noise PGA with selectable gain of 32, 64 and 128
- Power supply regulator for load cell and ADC analog power supply
- Oscillator on chip that does not require external component with optional external glass
- Power-on-reset on the chip
- Simple serial control and serial interface: controls driven by pins, programming is not required
- Output data rate 10SPS or 80SPS selectable

The module uses a 24-bit high precision A / D conversion chip HX711.
The input circuit can be configured to provide a bridge.
The electric bridge voltage sensor model (such as pressure, weight) is an ideal sampling module with high precision and low cost. Module features: - Two selectable differential input channels
- Active low noise PGA with selectable gain of 32, 64 and 128
- Power supply regulator for load cell and ADC analog power supply
- Oscillator on chip that does not require external component with optional external glass
- Power-on-reset on the chip
- Simple serial control and serial interface: controls driven by pins, programming is not required
- Output data rate 10SPS or 80SPS selectable

The kit includes 20 basic sensors, which will help you to easily kick-start any project. The sensors are featured with a proprietary Seeed Grove connectors enabling easy connection without soldering and a comprehensive guide book with exemplary classes.

The kit includes 30 basic sensors, which will help you to easily kick-start any project. The sensors are featured with a proprietary Seeed Grove connectors enabling easy connection without soldering and a comprehensive guide book with exemplary classes.

The kit includes 40 basic sensors, which will help you to easily kick-start any project. The sensors are featured with a proprietary Seeed Grove connectors enabling easy connection without soldering and a comprehensive guide book with exemplary classes.

Seeed Grove Arduino Starter kit is a game-changer for schools and robotic classes. You get a set of 10 sensors with a Arduino compatible board and 12 classes for only 28.99 EUR!

The module is equipped with an electret microphone with a sensitivity in the range of 20-20 kHz and the amplification is used in the Maxim MAX4466 integrated circuit, an operational amplifier specially designed for use as a microphone preamplifier.

The Carbon Monoxide sensor is a low-power digital gas sensor which has a CCS811 sensor and an 8-bit microcontroller, contains an analog-digital converter so that it can detect indoor air quality which can detect monoxide carbon (CO) and a wide range of volatile organic compounds (VOCs). It is a sensor designed to monitor air quality inside personal devices such as mobile devices and smart watches, with low power consumption that can be used with battery

The sensor measures the current flowing in the cable without cutting it. The measurement is made on a single insulated wire, the output is an analog voltage from 0 to 1 V. Sensor SCT-013-050, Non-Invasive 50A AC Current Meter

Air quality sensor with high precision whose SDS011 uses laser dispersion to detect particle concentration between 0.3 and 10 um in the air.

With digital output by USB (UART) and built-in fan. It is a powerful sensor, fast (response less than 10s), accurate and reliable.

This fingerprint scanner (as608-optical reader) is ideal for Arduino or Raspberry thanks to its small size and low power consumption. It has a simple interface, high reliability, good adaptability of wet and dry fingers, fast recognition speed and also in fast fingerprint search. Storage capacity of up to 120 fingerprints in its internal FLASH memory.

Level sensor for liquids with float. The liquid level sensor acts as a switch. Liquid level float sensors are used when constant control and regulation of the liquid level (water, oil and other fluids) is required such as extraction pumps. The sensor is equipped with a float with a magnet which, acting by the buoyancy force of the fluid, moves along the tube, shortening or opening the reed switch.

It can be used to detect liquid levels that are too high or too low. Ideal for all those applications where the level of non-corrosive liquids such as water tanks or aquariums needs to be monitored. It is made of stainless steel.

This sensor behaves like a switch that closes the circuit when both parts are put together. Ideal for intrusion detection, alarm system, light control and opening and closing devices. 

The GY-906 BAA is a plate-mounted temperature sensor, based on an integrated 3 V infrared thermometer, single zone, medical precision, compensated gradient, within 3 cm the precision is higher, approximately 0.5 degrees

The GY-906 BCC is a plate-mounted temperature sensor, based on an integrated 3 V infrared thermometer, single zone, medical precision, compensated gradient, accuracy within 5 cm is approximately 0.5 degrees higher

The GY-906DCI is a plate-mounted temperature sensor, based on an integrated 3 V infrared thermometer, single zone, medical precision, compensated gradient, within 15 cm the accuracy is high, approximately 0.5 degrees

This detection module that allows you to detect your heart rate and blood oxygen level from your Arduino project. You can monitor your blood oxygen level yourself to avoid going to the doctor or pharmacy on purpose. Simply press the sensor with your finger and wait for the reading of hemoglobin (Spo2), heart rate and Perfusion Index (PI%). It is a solution as an integrated heart rate sensor and pulse oximetry, which includes two LEDs, a photodetector and is optimized for analog low noise optics.

A waterproof pentaband antenna X000016  for all your wireless projects with Arduino and development boards

This is the MyoWare Muscle Sensor Development Kit, an Arduino-powered electromyography (EMG) sensor kit that gives you the MyoWare, each MyoWare Shield and everything you need to connect them all together.

The accelerometer sensor is an add-on for your RedBot that provides shock and motion detection. The sensor works by measuring acceleration forces on the x, y and z axes. By measuring the amount of acceleration (or lack thereof), your robot can better understand its movements.

Level sensor for liquids with float. The liquid level sensor acts as a switch. Liquid level float sensors are used when constant control and regulation of the liquid level (water, oil and other fluids) is required such as extraction pumps. The sensor is equipped with a float with a magnet which, acting by the buoyancy force of the fluid, moves along the tube, shortening or opening the reed switch.

It can be used to detect liquid levels that are too high or too low. Ideal for all those applications where the level of non-corrosive liquids such as water tanks or aquariums needs to be monitored. It is made of stainless steel.

Level sensor for liquids with float. The liquid level sensor acts as a switch. Liquid level float sensors are used when constant control and regulation of the liquid level (water, oil and other fluids) is required such as extraction pumps. The sensor is equipped with a float with a magnet which, acting by the buoyancy force of the fluid, moves along the tube, shortening or opening the reed switch.

It can be used to detect liquid levels that are too high or too low. Ideal for all those applications where the level of non-corrosive liquids such as water tanks or aquariums needs to be monitored. It is made of stainless steel.

Level sensor for liquids with float. The liquid level sensor acts as a switch. Liquid level float sensors are used when constant control and regulation of the liquid level (water, oil and other fluids) is required such as extraction pumps. The sensor is equipped with a float with a magnet which, acting by the buoyancy force of the fluid, moves along the tube, shortening or opening the reed switch.

It can be used to detect liquid levels that are too high or too low. Ideal for all those applications where the level of non-corrosive liquids such as water tanks or aquariums needs to be monitored. It is made of stainless steel.

Capsule Electret Condenser Microphone 9.5mm

This sensor behaves like a switch that closes the circuit when both parts are put together. Ideal for intrusion detection, alarm system, light control and opening and closing devices. 

The Arduino turbidity sensor SEN0189  detects water quality by measuring turbidity levels. It can detect suspended particles in water by measuring the light transmittance and the scattering coefficient, which changes with the amount of total suspended solids (TTS) in the water.

MQ-7 Carbon Monoxide Sensor Module. The sensor detects the concentration of CO (carbon monoxide) and flammable gases. It has a goldpin connector raster 2.54 mm. It is powered by 5 V. It has digital and analogue outputs, which makes it compatible with most runtime modules including Arduino.

Gravity: SHT1x Temperature & Humidity Sensor (DFR0066) Accurate, durable, highly compatible and easy to use, it has all the attributes that a superior temperature and humidity sensor requires.

The DFRobot heart rate monitor sensor (SEN0213) is used to measure the electrical activity of the heart.

The BME280 is an environmental sensor (SEN0236) integrating a temperature sensor, a humidity sensor and a barometer. Powered from 3.3 V to 5 V with I2C and SPI interface. Measuring range: temperature: -40 °C to 85 °C, humidity: 0 %RH to 100 %RH, pressure: 300 hPa to 1100 hPa.

Low power CO2 sensor MH-Z1311A, the current consumption is only 150-200uA, waterproof and anti-corrosion, high sensitivity, additionally characterised by excellent linear output. It is very popular used for battery monitors and IAQ devices.

Level sensor for liquids with float. The liquid level sensor acts as a switch. Liquid level float sensors are used when constant control and regulation of the liquid level (water, oil and other fluids) is required such as extraction pumps. The sensor is equipped with a float with a magnet which, acting by the buoyancy force of the fluid, moves along the tube, shortening or opening the reed switch. It can be used to detect liquid levels that are too high or too low. Ideal for all those applications where the level of non-corrosive liquids such as water tanks or aquariums needs to be monitored. It is made of stainless steel.

Level sensor for liquids with float. The liquid level sensor acts as a switch. Liquid level float sensors are used when constant control and regulation of the liquid level (water, oil and other fluids) is required such as extraction pumps. The sensor is equipped with a float with a magnet which, acting by the buoyancy force of the fluid, moves along the tube, shortening or opening the reed switch. It can be used to detect liquid levels that are too high or too low. Ideal for all those applications where the level of non-corrosive liquids such as water tanks or aquariums needs to be monitored. It is made of stainless steel.

Level sensor for liquids with float. The liquid level sensor acts as a switch. Liquid level float sensors are used when constant control and regulation of the liquid level (water, oil and other fluids) is required such as extraction pumps. The sensor is equipped with a float with a magnet which, acting by the buoyancy force of the fluid, moves along the tube, shortening or opening the reed switch. It can be used to detect liquid levels that are too high or too low. Ideal for all those applications where the level of non-corrosive liquids such as water tanks or aquariums needs to be monitored. It is made of stainless steel.

The Grove Starter Kit for Arduino is one of the best Arduino starter kits for beginners. It includes an Arduino-compatible base shield and 14 additional Arduino sensors and accessories. With this Grove starter kit, you can create any Arduino project you want.

This starter kit aims to quickly get you connected to Seeed Studio BeagleBone® Green. It contains 10 Grove modules and we provide you with 3 step-by-step projects to get you started quickly with all modules. The set comes in a handy box and is attractively priced!

Gravity: Starter Kit for Arduino is a plug&play electronics toolkit that provides Arduino beginners and makers with the easiest experience of learning and playing with the Arduino platform. The Gravity Kit presented here is equipped with numerous electronic components, such as a motherboard that works with the Arduino Uno - DFRduino Uno v3. DFRobot Gravity IO Expansion shield for Arduino is enclosed as well.

Microwave radar presence and motion sensor using FMCW technology, compatible with Arduino and Raspberry Pi.

Arduino compatible analog TDS (Total Dissolved Solids) sensor to measure water hardness, water purity. It can be used to test water quality in domestic, hydroponic and other applications. Measures TDS from 0 ppm to 1000 ppm. Power supply from 3.3V to 5.5V.

The solar power management module is designed for 6V~24V solar panel. It can charge Li 3.7V battery through solar panel or USB connection, and provides 5V/1A regulated output.

Gravity: IO Expansion Shield for Arduino V7.1 is a shield board for Arduino that expands the capabilities of the I/O pins.  Among other things, it has each pin with a power pair, the ability to include a 3.3 V voltage converter, a separate connector for I2C interfaces, SPI and a socket for XBee modules.

The sensor measures the current flowing in the cable without cutting it. The measurement is made on a single insulated wire, the output is an analog voltage from 0 to 1 V. Sensor SCT-013-000, Non-Invasive 100A AC Current Meter

Pressure sensor sometimes called strain gauge. Load cell for measuring weights up to 50kg. The transducer measures the strain of the metal structure and converts it into a few mV.