Grove 103100124 Shield for Arduino Nano provides you a simple way to connect with Arduino Nano and also Seeeduino Nano. This shield pulls out the pins of the motherboard and expands to 8 Grove connectors, including 3 Grove digital connectors, 3 Grove analog connectors, 1 Grove I2C connector, and 1 Grove UART connector.

• Operating voltage: 3.3V/5V
• Operation Temperature: -25℃ to +85℃
• Analog Ports: 3
• Digital Ports: 3
• UART Ports: 1
• I2C Ports: 1
• Size: 45mm x40mm

Grove Shield for Pi Pico v1.0 is an expansion board for Raspberry Pi Pico designed by Seeed Studio for the orderliness of your connected sensors when you develop projects with Pico. It provides female headers for all the pins and 10 additional Grove ports, along with other interfaces.

• Parameter: Description
• Analog Port: Include 3 analog ports, A0, A1, A2
• Digital Port: Include 3 digital ports, D16, D18, D20
• UART Port: Include 2 UART port
• I2C Port: Include 2 I2C ports
• SPI Port: Provide one SPI0 port
• Power Switch: Provide 5V/3.3V selectable power switch
• Operating Temperature: -25℃ to +85℃
• Operating voltage: Input power 3/5 V
• Dimension: 56mm * 56mm

Seeed 101020001 Grove - HCHO Sensor is a semiconductor VOC gas sensor. It uses the VOC sensor WSP2110 whose conductivity changes with the concentration of VOC gas in the air. With a circuit, the conductivity can be converted to an output signal that corresponds to the gas concentration. This sensor has very high sensitivity and stability, that can detect gas whose concentration is up to 1ppm. It can be used to detect Toluene, Methanal, Benzene, Alcohol, Acetone and can detect the presence of harmful gas in the home environment, which makes it a good assistant to improve indoor air quality.

• Up to 1ppm high sensibility: High sensitivity to organic gases such as toluene, benzene, methanal
• Quick response and resume: Real-time detection of gas values
• Good stability and long life: The sensor value fluctuates little
• Simple detection circuit: The higher the concentration of gas is, the higher conductivity of sensor gets
• Grove compatible interface: The product ensures "Plug and Play" and could be versatile for various applications of Grove
• Operating Voltage: 5.0V ± 0.3V
• Chip: WSP2110
• Detection Gas: toluene, methanal, benzene, alcohol, acetone & etc.
• Detection range: 1～50ppm
• Sensor Resistance Value(Rs) 10KΩ-100KΩ(in 10ppm HCHO)
• Sensitivity: Rs(in air)/Rs(10ppm HCHO)≥5

From the Grove modular connector prototyping system is the Grove - Button . The momentary push button outputs a HIGH when pressed and a LOW when released.

• Easy to use momentary ON/OFF button
• Ready for use
• Button signals the SIG wire
• Uses Standard 4-pin Grove Cables
• Configured with a pull-down resistor
• Dimensions 24 x 20 x 10.8mm

Fore more information see the Wiki page here.

Seeed 101020004 Grove - Switch(P) is to toggle the switch handle to make the circuit on or off, so as to achieve the purpose of switching the circuit. It features that flexible operation which gives a stable and reliable performance and is generally used in low-voltage circuits.

• Easy to use with a simple connection.
• The product ensures "Plug and Play" and could be versatile for various applications.
• Compatible with Arduino and Raspberry pi, or other development boards that can use the grove interface.
• Dimensions: 20mm x20mm x9mm
• Weight: G.W 8g
• Battery: Exclude
• Input Voltage: 3.3V / 5V
• Electrical Life: 10,000 cycles
• Operation Force: 200 ± 50gf
• Operation Temperature: -20℃ to +80℃

Seeed 101020006 Grove - Gas Sensor(MQ3) module is useful for gas leakage detecting (in home and industry). It can detect LPG, i-butane, methane, alcohol, hydrogen, and smoke. Measurements can be taken as soon as possible based on its fast response time and it can also be adjusted by the potentiometer.

• High sensitivity to combustible gas
• Stable performance, long life, low cost
• Fast response
• Wide detection range
• Simple drive circuit
• Dimensions: 130mm x90mm x21mm
• Weight: G.W 14g
• Battery: Excluded

The Grove Moisture Sensor from Seeed Studio has two conductive prongs which can be pushed into soil or other substrate to measure the water content. It returns the moisture as an analogue signal, a small signal means dry, a large signal means wet.

• Operating voltage: 3.3 to 5V
• Sensor in dry soil: 0 to 30%
• Sensor in humid soil: 30% to 70%
• Sensor in water: 70% to 95%

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

The Grove Ultrasonic Range Finder from Seeed Studio emits ultrasonic pulses and times the return signal to establish the distance between the sensor and a reflective object. It can measure distances between 30mm and 4m.

• Detecting range: 30mm to 4m, best within a 30 degree angle
• Grove interface
• 5V DC power supply
• Arduino library ready

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

The Grove Temperature & Humidity Sensor from Seeed Studio is factory calibrated to ensure it functions well in your project.

With and accuracy of ±2°C and ±5%RH this sensor is an easy choice for most applications.

• Relative Humidity and temperature measurement
• Temperature measurement range: 0 to +50°C
• Temperature measurement accuracy ±2°C
• Relative Humidity measurement range: 20 to 90%RH
• Relative Humidity measurement accuracy ±5%RH
• Full range temperature compensation calibrated
• Low power consumption
• Sensor type DHT11

The Grove Dust Sensor from Seeed Studio measures the concentration of particles >= 1 µm in the air.

• Grove compatible interface (uses a 5 to 4 pin cable, supplied)
• Supply voltage: 5V DC
• Minimum detected particle: 1um
• PWM output
• Dimensions: 59 x 45 x 22mm

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

Seeed 101020013 Grove - RTC(DS1307) is based on the clock chip DS1307 and supports I2C communication. It uses a Lithium cell battery (CR1225) as it is low cost and very energy efficient. It can run for years on a very small coin cell.

• Complete functionality: Real-time clock (RTC) counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap-year compensation valid up to 2100.
• Power detection: Automatic power-fail detect and switch circuitry.
• Longevity: Consumes less than 500nA in battery backup mode with oscillator running
• Grove unified socket: The product ensures "Plug and Play" and could be versatile for various applications.
• Dimensions: 130mm x80mm x10mm
• Weight: G.W 10g
• Battery: Excluded
• PCB Size: 2.0cm*4.0cm
• IO Structure: SCL,SDA,VCC,GND
• ROHS: YES
• VCC: 3.3~5.5V
• Logic High Level Input: 2.2~VCC+0.3 V
• Logic Low Level Input: -0.3~+0.8 V
• Battery Voltage: 2.0~3.5 V

From the Grove modular connector prototyping system is the Grove - Temperature Sensor. The sensor uses an onboard thermistor to measure ambient temperature over an operating range of -40 to 125°C, with an accuracy of 1.5°C.

• Thermistor NCP18WF104F03RC (NTC)
• Easy to use
• High accuracy
• Small footprint
• Includes Grove cable

For more learning see here.

Seeed 101020016 Grove - Infrared Receiver is used to receive infrared signals and remote control detection. The IR detector has a demodulator inside that looks for modulated IR at 38 kHz. The Infrared Receiver can receive signals well within 10 meters.

• Excellent immunity to ambient light: The TSOP384 series devices are optimised to suppress almost all spurious pulses from energy saving lamps like CFLs.
• Good signal reception: It can receive signals well within 10 meters.
• Grove unified socket: The product ensures "Plug and Play" and could be versatile for various applications.
• Dimensions: 20mm x20mm x10mm
• Weight: G.W 9g
• Battery: Excluded
• Voltage: 3.3-5V
• Distance:10m

Seeed 101020017 Grove - Rotary Angle Sensor or potentiometer is also known as a pot meter or Pot twig produces analog output between 0 and Vcc (5V DC with Seeeduino) on its D1 connector. The angular range is 300 degrees with a linear change in value. The resistance value is 10k ohms, perfect for Arduino use. This may also be known as a rotary angle sensor.

• High availability: ± 20% resistance tolerance, and 300 degrees Angular range with a linear change in value
• Perfectly compatible with both Arduino and Raspberry Pi: 0-5V analog output and 10k ohms resistance.
• Plug and use: Grove connector design.
• Starter friendly: Clear documentation and guide provided.
• Dimensions: 19mm x19mm x30.1mm
• Weight: G.W 10g
• Battery: Not included

The Grove Water Sensor from Seeed Studio can be connected to a digital input to detect the presence of water or to an analogue input to measure the amount of water. Applications include tank overflow detection, rainwater measurements and many more.

• Operating voltage: 5V DC
• Use with analogue or digital input

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

The Grove Temperature & Humidity Sensor from Seeed Studio is factory calibrated to ensure it functions well in your project. With and accuracy of 0.3°C and 2%rh this sensor is an easy choice for most applications. Libraries are provided for popular processors such as Arduino and Raspberry Pi.

• Operating voltage: 3.3 to 5V
• Standby current max.: 50µA
• Measurement temperature range: -40 to +80°C
• Measurement relative humidity range: 5 to 99%

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

The Grove PIR Motion Sensor from Seeed Studio detects movement at up to 3m with a detection angle of 120°. When something intrudes into the detection area the sensor raises its output line to a logic 1. If you want to change the detection distance or holding time solder pads are provided for a pair of 10k Ohm potentiometers.

• Grove compatible interface
• Voltage range: 3 to 5V DC
• Detecting angle: 120 degree
• Detecting distance: max 6m (3m by default)
• Adjustable detecting distance and holding time

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

The Grove - Sound Sensor from Seeed Studio uses the combination of a simple electret microphone and a power amplifier to measure ambient sound levels. The sensor outputs an analogue value which is compatible with any microcontroller with a spare ADC input and matching supply voltage.

• Operating voltage range: 4 to 12V DC
• Operating current (Vcc = 5V DC): 4 to 8mA
• Voltage Gain (VS = 6V, f = 1 kHz): 26dB
• Microphone sensitivity (1kHz): 52 to 48dB
• Microphone Frequency: 16 to 20kHz
• Microphone S/N ratio: 54dB

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

Seeed 101020025 Grove - Tilt Switch is the equivalent of a button which has a two ball type single direction tilt sensitive trigger switch. Inside the tilt switch is a pair of balls that make contact with the pins when the case is upright. Tilt the case over and the balls don't touch, thus not making a connection. It is wired to the SIG line and is used as a digital input.

• Dimensions: 130mm x90mm x10mm
• Weight: G.W 9g
• Battery: Excluded
• Input Voltage: 3V to 5.25V
• Connecting Angle: 10° ~170°
• Disconnect angle: 190° ~350°
• Electrical Life: 100,000 Cycle

Seeed 101020027 Grove - Electricity Sensor module is based on the TA12-200 current transformer which can change large alternating current into a small amplitude. You can use it to test large alternating current up to 5A.

• Grove compatible interface
• Maximum 5A input
• High accuracy
• Small size
• Applications
• Alternating current measurement
• Device condition monitoring
• Dimensions: 130mm x90mm x24mm
• Weight: G.W 16g
• Battery: Excluded

The Grove Thumb Joystick from Seeed Studio has two analogue outputs, one each for X and Y. The stick also has a push button, when it is pressed the analogue lines are set to maximum, otherwise they operate between 20 and 70% of the normal range.

• Grove compatible
• Operating voltage: 3.3 to 5V DC
• Analog output (Maximal value when the button is pushed)

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

The Grove Digital Light Sensor from Seeed Studio gives you three detection modes, infra-red only, visible light only , and the two combined. The sensor returns a 16-bit value for the light intensity over a fast-mode I2C link.

• Selectable detection modes
• high resolution 16-bit digital output at 400 kHz I2C Fast-Mode
• Wide dynamic range: 0.1 - 40,000 LUX
• Wide operating temperature range: -40°C to 85°C
• Programmable interrupt function with User-Defined Upper and lower threshold settings

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

The Grove Piezo Vibration sensor from Seeed Studio detects vibration and outputs a logic 1 when it exceeds a threshold set by the onboard potentiometer. Applications include car alarms, security systems, low-power wake-up switch, and more.

• Wide dynamic range: 0.1 to 180Hz
• Adjustable sensitivity
• High receptivity for strong impact

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

Seeed 101020033 Grove - Ear-clip Heart Rate Sensor kit contains a clip and a receiver module. The heart rate measure kit can be used to monitor heart rate of patient and athlete. The result can be displayed on a screen via the serial port and can be saved for analysis. The entire system is a high sensitivity, low power consumption and portable.

• Comfortable and convenient to wear: It is non-invasive and just gently clip it to your ear/finger and you are ready to use.
• Excellent safety: Because there is no electrical contact to the human body it is safe and can even be used in water.
• High sensitivity: the PPG signal is strong and robust.
• Grove unified socket: The product ensures "Plug and Play" and could be versatile for various applications Weight: G.W 27g
• Battery: Excluded
• Voltage: 3V-5.25V, 5.0V(typical)
• Work current: 6.5mA
• Length of ear clip wire: 120cm
• Measures Range: ≥30/min

Seeed 101020035 Grove - Protoshield - This Grove allows you to add your own circuitry or components to your Grove system prototypes. It gives you access to all four lines from the grove connector cable – S0, S1, VCC and GND. There is also a reserved space for a normally-open button. Standard 2.54mm spacing makes it easy to install normal DIP-format ICs and other components onto the board.

• Standardised Grove Interface
• Breadboard style
• Standard spacings
• Silk screen labels
• Reserved space for normally-open button
• Dimensions: 60mm x60mm x10mm
• Weight: G.W 9g
• Battery: Excluded

Seeed 101020036 Grove - Slide Potentiometer module incorporates a linear variable resistor with a maximum resistance of 10KΩ. When you move the slider from one side to the other, its output voltage will range from 0 V to the Vcc you apply. It connects to the other Grove modules through a standard 4-Pin Grove Cable. Three of the pins are connected to OUT (Pin 1), Vcc (Pin 3) and GND (Pin 4), while the fourth pin (Pin 2) is connected to a on-board green indicator LED. The LED is used to visually represent the resistance change on the potentiometer.

• Excellent Durability: Up to 15,000 cycles rotational life, examinations that stand up to time.
• Linear resistance taper: Smoother parameters output to the board during adjustment
• Grove unified socket: The product ensures "Plug and Play" and could be versatile for various applications.
• Dimension: 24mm x60mm
• Weight: G.W 13g
• Battery: Exclude
• Voltage (DC): 3.3V/5v, 30V MAX.
• Current: 30mA MAX.
• Net Weight: 8.6g
• Rotational life: >15,000 cycles
• Total resistance: 10KΩ
• Stroke length: 30mm
• Total resistance tolerance: +/- 20%

The Grove Touch Sensor module is an ideal alternative for a mechanical pushbutton. The simple device uses the TTP223-B touch detector IC to measures the capacitance of a metallic pad. When a finger is near or on the pad that sensor detects it an actuates the switch. As the sensor detects the proximity of the finger as well as direct touch, there are many ways to use this module. You can place the metallic pad under a non-metallic surface such as a plastic sheet, glass/wood table, etc. Great for projects that need to be waterproof. Why not construct a hidden button to stylishly actuate a device.

• Grove compatible interface
• Inconspicuous button
• Water proofed electric product
• Button key replacement
• Voltage 2.0 to 5.5V DC
• Fast response time
• Low power consumption
• 20 x 20mm Twig module
• Power indicator LED

For all Grove users (especially beginners), there are guidance PDF documents to download: Introduction to Grove Preface - Getting Started

For more information see the Wiki page.

The Grove Magnetic Switch from Seeed Studio contains a dry reed switch that can be activated by a permanent magnet or electromagnet. The normally open switch is connected to a digital line and has a pull-down resistor giving a logic 0 signal. When a magnet approaches, the contacts close and the output goes to a logic 1.

• Working voltage: 4.75 to 5.25V DC
• Switched power: 10W
• Max current: 500mA

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

The Grove 3-axis Digital Accelerometer from Seeed Studio measures up to ±1.5g with a resolution of 6-bits. Connect this sensor to an I2C port on a Grove main board and use the downloadable library to read back the accelerometer data. Applications include robotics and smart vehicles, game controller, orientation detection and many others.

• Grove compatible interface
• 3-axis motion/orientation sensing
• Digital Output (I2C)
• 5VDC input

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

Seeed 101020042 Grove - 80cm Infrared Proximity Sensor is quite small and uses a tiny connector called the Japan Solderless Terminal (JST). These connectors have three wires: Ground, VCC, and Output.

Because the sensor fires continuously and doesn't need any clock to initiate a reading, it is easy to interface with any microcontroller. The Seeeduino 4.2 converts the 3-wire to 4-wire so that it can be compatible with the twig interface of Grove. You can apply it to TVs, personal computers, cars.

• Dimensions: 37mm x18.9mm x15.5mm
• Working Voltage: 5V
• Analog Output Voltage(80cm): 0.4V
• Average Current Consumption: 33mA
• Measuring Distance Range: 10 to 80 cm
• Operating Temperature: -10 to + 60 ℃
• Storage Temperature: -40 to + 70 ℃
• Weight: G.W 9g
• Battery: Excluded

Seeed 101020043 Grove - UV Sensor is used for detecting the intensity of ultraviolet (UV) radiation. This form of electromagnetic radiation has shorter wavelengths than visible radiation. You can also use it to measure the UV Index to determine how intense the sun's UV is and therefore what kind of protective measures should be taken.

• Dimensions:20mm x20mm x15mm
• Weight: G.W 8g
• Battery: Excluded
• Operating Voltage:3.0~5.1V
• Current: 0.31mA
• Response wavelength:240~370nm
• Working Temperature: -30~85℃

Seeed 101020044 Grove - Alcohol Sensor is a complete alcohol sensor module, based on MQ303A. It has good sensitivity and fast response to alcohol.

Grove - Alcohol Sensor is a complete alcohol sensor module for Arduino or Seeeduino. It is built with a MQ303A semiconductor alcohol sensor which has good sensitivity and a fast response to alcohol, making it suitable for a breathalyzer. This Grove implements all the necessary circuitry for MQ303A like power conditioning and heater power supply. This sensor outputs a voltage inversely proportional to the alcohol concentration in air.

• Dimensions: 40mm x20mm x12mm
• Weight: G.W 11g
• Battery: Excluded
• Power requirements:5 VDC @ ~120 mA (heater on)
• Detection Gas: Alcohol
• Concentration: 20-1000ppm Alcohol
• Interface: 1 TTL compatible input (SEL), 1 TTL compatible output (DAT)
• Heater Voltage: 0.9V ± 0.1V AC or DC
• Heater Current: 120 ± 20mA

Seeed 101020049 Grove - Flame Sensor can be used to detect fire sources or other light sources of the wavelength in the range of 760nm - 1100 nm. It is based on the YG1006 sensor which is a high-speed and high-sensitive NPN silicon phototransistor. Due to its black epoxy, the sensor is sensitive to infrared radiation, therefore, combined with an extra buzzer and LED, this can easily be built a fire alarm system.

• High-performance: Detecting fires or light of the wavelength in the range of 760nm ~ 1100nm
• High-speed: Detecting speed up to 15μS/cm
• High-sensitive: Based on the YG1006 sensor-a high-sensitive NPN silicon phototransistor
• Adjustable sensitivity: A precision potentiometer provided
• Easy to program: Grove Interface for easy plug and play with your Arduino board instead of using jumper wires, supports both Arduino and Raspberry Pi platforms, and full guidance documents provided

The Grove Galvanic Skin Response sensor from Seeed Studio measures the electrical conductivity of the skin, which has been linked to sweat production due to strong emotion. It is supplied with two elasticated conductive finger cots which connects a person to the sensor. The sensor has an analogue output which can be read by any microcontroller with a spare ADC input and matching supply voltage.

• Input Voltage: 3.3 to 5V DC
• Sensitivity adjustable via a potentiometer
• External measuring finger cots

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

The Grove - 3-axis Digital Accelerometer from Seeed Studio measures up to ±16g with a resolution of 10-bits. Connect this sensor to an I2C port on a Grove main board and use the downloadable library to read back the accelerometer data. Applications include shock detection, robotics and smart vehicles, game controller and many others.

• Wide power range 3 to 5V DC
• Grove module
• 3 axis sensing
• High sensitivity
• Low power 0.1 µA in standby mode at 2.5V DC (typical)

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

Seeed 101020055 Grove - Gas Sensor(MQ2) module is useful for gas leakage detecting (in home and industry). It can detect LPG, i-butane, methane, alcohol, hydrogen and smoke. Based on its fast response time, measurements can be taken as soon as possible and the sensitivity can be adjusted by the potentiometer.

• Dimensions:130mm x90mm x32mm
• Weight: G.W 16g
• Battery: Excluded
• Wide detecting scope
• Stable and long lifetime
• Fast response and High sensitivity

Seeed 101020058 Grove - EMG Detector gathers small human muscle signals then processes them with a 2th amplify and filter. The output signal can be recognized by Arduino and can be added into your control system when in standby mode. When it detects active muscle, the output signal rises up. The maximum voltage is 3.3V, however, this sensor can be used with 3.3V or 5V system.The output voltage is 1.5V.

• Disposable Surface Electrodes: Help users to measure more accurately
• Grove unified socket: The product ensures "Plug and Play" and could be versatile for various applications.
• Power supply voltage: 3.3V-5V
• 1000mm Cable Leads
• No additional power supply
• 3.5mm Connector
• Dimensions: 140mm x100mm x30mm
• Weight: G.W 45g
• Battery: Excluded

The Grove Infrared Temperature Sensor from Seeed Studio is a very low-power device for non-contact measurement of temperature.

• Wide supply voltage range: 3 to 5V DC
• Zero drift amplifier current
• Power consumption: less than 0.6mW
• Temperature measure range: -10 to +100°C
• Measure accuracy: ±2°C
• Nominal measure distance: 90mm

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

The Grove Sound Sensor from Seeed Studio measures the ambient sound level and outputs it via single analogue line to any microcontroller with a spare ADC input and matching supply voltage.

• Voltage 3.5 to 10V DC
• Working Frequency 50 to 20,000Hz
• Sensitivity -48 to 66dB
• Signal-to-noise ratio >58dB
• Output signal range 0 to 1023

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

Seeed 101020067 Grove - Carbon Dioxide Sensor(MH-Z16) is an infrared CO2 detection sensor which features high sensitivity and high resolution. With good selectivity, oxygen-dependent, long life, built-in temperature sensor, temperature compensation, and with UART output, it is easy to use. It can be widely used in HVAC and indoor air quality monitoring, industrial process monitoring and security, agriculture and livestock production process monitoring.

• Dimensions: 100mm x150mm x20mm
• Weight: G.W 26g
• Battery: Excluded
• Measuring Range: 0-2000 parts per million (PPM)
• Resolution: 1 PPM 0-2000 parts per million (PPM)
• Accuracy: 200 PPM
• Warm up time: 3 minutes
• Response Time: <90s
• Operating Temperature: 0 to 50℃
• Operating Humidity: 0% ~ 90% RH
• Storage Temperature: - 20 - 60℃
• Operating Voltage: 4.5 V to 6 V DC
• Maximum Current: 100 mA
• Average Current: 50 ma
• Output Mode: UART

Seeed 101020071 Grove - 3-Axis Digital Accelerometer(±400g) is a low power high performance 3-axis linear accelerometer belonging to the "nano" family, with digital I2C serial interface standard output. The device features ultra low power operational modes that allow advanced power saving and smart sleep to wake-up functions. The H3LIS331DL has dynamically user selectable full scales of ±100g/±200 g/±400 g and it is capable of measuring accelerations with output data rates from 0.5 Hz to 1 kHz.

• Wide power range - DC3.3V to 5V
• Grove outline
• 3 axis sensing
• Small, low-profile package: 3×3×1mm TFLGA
• Low power -10µA at 3.3V (typical)
• ±100g /±200 g /±400 g dynamically selectable full scale
• I2C digital output interface
• 10000 g high shock survivability
• ECOPACK® RoHS and "Green" compliant
• Dimensions: 100mm x60mm x11mm
• Weight: G.W 9g
• Battery: Excluded

The Grove Electromagnet from Seeed Studio will hold up to 1kg when energised with only 400mA at 5V DC. Because this current is beyond the capability of most microcontrollers there is an on-board logic MOSFET that can be switched on by a low-current logic signal.

• Working Voltage: 5V DC
• Working Current: 400mA
• Standby current: 200uA
• Load Weight: 1kg

Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page.

Seeed 101020074 Grove - Temperature & Humidity Sensor (High-Accuracy & Mini) gives you temperature and relative humidity information at the same time. It utilizes a TH02 sensor, which is a digital I2C humidity temperature sensor that can meet measurement needs for general purposes. It provides reliable readings when environment humidity conditions are between 0-80% RH, and temperature conditions between 0-70°C It covers needs in most home and daily applications that don't contain extreme conditions.

• Industrial HVAC/R
• Thermostats / humidistat
• Micro-environments/data centres
• Weather station
• Automatic control
• Testing and inspection equipment
• Operating voltage range: 3.3V ~ 5V
• Power Consumption: 350 µA during RH conversion
• RH operating range: 0 to 100%
• Humidity Measuring Range: 0% - 80% RH
• Temperature: 0 ~ 70 °C
• Humidity Accuracy: ±4.5% RH
• Temperature Accuracy: ±0.5°C

Seeed 101020076 Grove - Luminance Sensor provides the linear transform lumen intensity for the output voltage levels and would be suitable for application in the field of human intelligence.

• VCC supply 2.4 to 5.5 V
• APDS-9002 Size: 2*1.25*0.8mm
• The linear output voltage range: 0~2.3V
• Dimensions: 130mm x90mm x10.5mm
• Weight: G.W 8g
• Battery: Excluded

Seeed 101020078 Grove - Air quality sensor v1.3 is designed for indoor air quality testing. It can respond to carbon monoxide, alcohol, acetone, thinner, formaldehyde, and other slightly toxic gases. Compatible with 5V and 3.3V power supplies, it can work with Arduino and Raspberry Pi. With its long-term stability & low power consumption, it would be a perfect choice for air quality monitoring.

• Dimensions 40mm x20mm x15mm
• Weight G.W 11g
• Battery Exclude
• Sensor Winsen MP503
• Power 5V or 3.3V

Seeed 101020082 Grove - Finger-clip Heart Rate Sensor with shell is based on PAH8001EI-2G, a high performance and low power CMOS-process optical sensor with Green LED and DSP integrated serving as a Heart Rate Detection(HRD) sensor. This module is based on optical technology which measures the variation human blood movement in the vessel. Low power consumption and flexible power saving mode make it suitable for wearable device. This module also provide tow bandages and 3D printing shell for finger test and arm test.

• Ultra-low power consumption power saving mode during time of no touch movement
• With tow bandages and 3D printing shell
• I2C standard interface
• Integrated chip-on-board LED with wavelength of 525nm
• Suitable for finger or wrist
• 1 x Grove - Finger-clip Heart Rate Sensor
• 1 x Finger-clip Heart Rate Sensor shell
• 1 x Bandage for finger
• 1 x Bandage for arm
• 1 x 26AWG Grove Cable
• Working Voltage: 5V
• SWD Interface
• Low Power
• Control Mode: IIC
• Operating Temperature: -20 ~ +60℃
• Dimensions: 110mm x85mm x15mm
• Weight: G.W 24g
• Battery: Excluded

Seeed 101020089 Grove - Sunlight Sensor - SI1145 is a multi-channel digital light sensor which has the ability to detect UV light, visible light, and infrared light. It offers excellent performance under a wide dynamic range and a variety of light sources including direct sunlight. Suitable for your Raspberry Pi weather station or smart irrigation system using Arduino if you need to monitor the visible spectrum.

• Multi-channel digital light sensor: can detect UV-light, visible light and infrared light
• Wide spectrum detection range: 280-950nm
• Easy to use: I2C Interface(7-bit), compatible with Grove port, just plug-and-play
• Programmable configuration: Versatile for various applications
• Low power consumption: 3.3/5V Supply, suitable for many microcontrollers and SBCs
• Dimensions: 140mm x85mm x11mm
• Weight: G.W 9g
• Battery: Excluded
• Operating Voltage: 3.0-5.5V
• Working current: 3.5mA
• Wave length: 280-950nm
• Operating Temperature: -45-85oC

Seeed 101020090 Grove - Water Atomization v1.0 is a perfect module for a humidifier with Arduino. You can also develop more advanced and interesting projects with digital scent technology and any other situations in which atomization is required.

• Heated with ultrasound: It has the characteristics of high humidification efficiency, low power consumption
• Easy to prototype: Detachable atomizer is more convenient for prototype development
• Well applied to vast projects: Good stability and high safety
• Easy to build: Easy to build various interesting, smart and fashionable applications
• Grove compatible interface: The product ensures "Plug and Play" and could be versatile for various applications of Grove
• Operating voltage: 5.0V(DC)
• Ripple(at Max power): ≤100 mV
• Max power: 2W
• Peak output voltage: 65±5V
• Operating frequency: 105±5kHz
• Chip: ETA1617、NE555
• Dimensions: 140mm x85mm x11.6mm

From the Grove modular connector prototyping system is the Grove - Light Sensor v1.2. This updated version gives higher reliability and sensitivity. The sensor is designed to measure light levels and integrates a high-sensitivity phototriode (LM358). The unit outputs various analog signals which can be converted to different ranges (depending on the ADC on your controller board). A common example of using this sensor is to build a light controlled switch i.e. switch off lights during day time and switch on lights during night time.

• Easy to use since it is interfaced with Grove port
• High reliability and sensitivity
• Small footprint
• Wide spectrum
• Includes Grove cable

For more information see the Wiki page here.

Seeed 101020172 Grove - Line Finder v1.1 is designed for a line-following robot. It has an IR emitting LED and an IR-sensitive phototransistor which can output a digital signal to a microcontroller so that the robot can follow a black line on a white background or vice versa.

The eye-like sensors on the board are actually IR emitting LED and sensitive phototransistor. When the phototransistor detects the reflected infrared light from the IR emitting LED, it will output a digital signal, which changes from HIGH to LOW.

• Dimensions: 24.2mm x20mm x10.8mm
• Weight: G.W 8g
• Battery: Excluded
• Power supply: 5V DC
• Digital output mode: TTL (High when black is detected, Low when white is detected)
• Connector: 4 pin Buckled Grove interface
• Comparator: MV358
• Photo reflective diode: RS-06WD