Gravity: I2C HUB - 8-port I2C splitter

I2C BME680 Environmental Sensor is a gas, pressure, temperature and humidity sensor in one MEMS housing. The module is supplied with 3.3-5V, for communication the I2C or SPI interface is used. DFRobot SEN0248

Gravity: UART MP3 Voice Module is an MP3 sound player module with a built-in 8 MB memory. It is powered by 3.3-5V and controlled by the UART interface. DFRobot DFR0534

Ring light with 24 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 DFR0888-24

A push-button module with RGB LED backlighting. The board is equipped with a Gravity connector and communicates via an I2C interface. DFRobot DFR0991

Digital orientation sensor module. DFRobot DFR0028

Module with green LED, digitally controlled. Perfect for people starting to play with Arduino. Equipped with a Gravity interface. DFRobot DFR0031-G

Module with an 11-channel AS7341 sensor that allows the detection of light in various wavelength ranges (color detection). It is equipped with a Gravity connector and communicates via the I2C interface. DFRobot SEN0364

Measurement module for dissolved oxygen in water. It allows you to determine the level of water quality. The set includes a measuring module and a probe. DFRobot SEN0237-A

Module with a UV ultraviolet light sensor VEML6075. Enables measurement of the level of UVA (350-375 nm) and UVB (315-340 nm) radiation. It communicates via the I2C bus. DFRobot SEN0303

Compact ORP system compatible with Arduino. It allows you to monitor the ORP without having to add additional circuits or components. DFRobot SEN0165

Gravity: Heart Rate Monitor Sensor is a sensor used to measure heart activity. Adapted for easy use with Arduino. SparkFun SEN0213

Module with an analog AC current sensor in a set with a probe for non-contact measurement of alternating current with a current of up to 10 A. DFRobot SEN0288

Photoelectric liquid level sensor FS-IR02 in a set with a Gravity adapter. DFRobot SEN0205

A sensor that detects the concentration of sulfur dioxide. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0470

Professional pH measurement set with an industrial silver chloride electrode (Ag/AgCl), the measurement in the range from 0 to 14 pH is converted into voltage with a linear characteristic. DFRobot SEN0169-V2

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