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

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

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

Current-to-voltage converter module designed for devices with a current signal output. It allows linear conversion of current signals from 0 to 25 mA into voltage signals from 0 to 3 V. DFRrobot SEN0262

Real time clock (RTC) module DS1307. It is powered by 5 V and communicates via the I2C interface (Gravity connector). There is also a CR1220 battery socket on the board. DFRobot DFR0151

Micro: Circular RGB LED is an expansion board designed for use with the micro: bit module. It has been equipped with 24 RGB LEDs, a buzzer and a microphone. The board is supplied with voltage in the range of 3.5 ... 5 V. DFRobot ROB0150

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

A set with a measuring module and a probe for measuring the pH of the solution. It is supplied with the voltage of 3.3 to 5.5 V. It has an analog Gravity output interface. DFRobot SEN0161-V2

Module with a pulse sensor and the level of SpO2 (oxygen saturation level). It is based on the MAX30102 chip and communicates via the I2C or UART interface (Gravity connector). DFRobot SEN0518

A set of 27 sensors with Gravity connectors designed for Arduino. It contains a package of the most popular DFRobot sensors, such as light, gas, sound, tactile sensors, distance sensor and accelerometer. DFRobot KIT0011

Ring light with 16 RGB diodes WS2812B type controlled by serial signal. The module can be powered with the voltage from 3.3 V to 5 V, only one signal line is required to control it. DFRobot DFR0888-16

Module with an analog sensor of carbon monoxide and combustible gases (methane, propane) MQ9. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0134

2x16 character LCD display. It can display the font in any color from the RGB palette. Communication via the I2C interface. The module has a lead compliant with the Gravity standard. DFRobot DFR0554

et with a measuring module and a probe for measuring electrical conductivity. It allows you to measure the salinity of water and soil. It has a Gravity analog output interface. DFRobot DFR0300-H

Ultrasonic distance sensor with a range of up to 5 m with an analog output The module is supplied with the voltage from 3.3 to 5.5 V. DFRobot SEN0307

Audio Analyzer is a module with sound analyzer based on the MSGEQ7 system. It divides the sound into seven frequency bands, and then allows you to read the peak levels of each band. It allows you to measure the sound in the following frequencies: 63Hz, 160Hz, 400Hz, 1kHz, 2.5kHz, 6.25kHz and 16kHz. DFRobot DFR0126

A sensor that detects the oxygen concentration. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0465