Gravity: LED Button - module with a button and LED backlight (white)

A 24-channel input/output port expander module controlled by an I2C interface. It was based on the CH423 chip and equipped with a Gravity connector. DFRobot DFR0979

The analog pH meter, specially designed for Arduino controllers, with the connector (Gravity series). It has an LED which works as the Power Indicator, a BNC connector and PH2.0 sensor interface. The pH measurements at ± 0.1pH (25?). SEN0161

Module with green LED, digitally controlled. Perfect for people starting to play with Arduino. Equipped with a Gravity interface. DFRobot DFR0021-G

Module with DHT20 temperature and humidity sensor. It allows you to measure humidity in the range from 0 to 100% and temperature from -40 to 80℃. DFRobot SEN0497

A module with an EMG sensor that detects the activity of human muscles and neurons. Generates an analog signal in the range from 0 to 3 V on the output, it does not require the use of a conductive gel. DFRobot SEN0240

Sensor that detects the concentration of ozone. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0472

Module with a motion sensor that uses the Doppler effect to detect moving objects using microwaves. It is powered with the voltage of 5 V and has a digital output (Gravity connector). DFRobot SEN0192

A set of 10 cables, 50 cm long, compliant with the Gravity standard. DFRobot FIT0773

Water pressure sensor with 3-pin Gravity interface. It enables the measurement of liquid pressure in the range from 0 to 1.6 MPa. It is supplied with the voltage of 5 V and has a linear output voltage from 0.5 to 4.5 V. DFRobot SEN0257

Bright white SMD 3528 LED module. DFRobot DFR0438

2x1.2A DC Motor Driver is a dual controller of DC motors with a Gravity connector, supplied with 2.5 ... 12V voltage with a maximum current consumption of 1.2A (3.2A peak) per channel. DFRobot DRI0044-A

This encoders are designed for DFRobot 3PA and AWD Rovers. It can give you the rotation degree of the wheels. Encoder uses non-contact method to convert the angular displacement signals. Best fit with Micro DC Geared Motor. SEN0038

A sensor that detects the concentration of carbon monoxide. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0466

Gravity: Digital Crash sensor is a microswitch module (left) often called a limit switch. The module is powered by 5V voltage and has a digital two-state output. DFRobot SEN0138-L

Robust electromagnetic lock in a metal housing, with a copper coil and feedback signal. DFRobot FIT0620

A module with a 16-channel input/output port expander controlled by an I2C interface. It was based on the MCP23017 chip and equipped with a Gravity connector. DFRobot DFR0626