Gravity: LED Switch - module with self-locking button and LED backlight (yellow)

Module with distance sensor Sharp GP2Y0D810Z0F operating in the infrared band. It is powered with a voltage ranging from 2.7 to 6.2 V and has a digital output (Gravity connector). DFRobot SEN0042

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

Module with an analog sound intensity sensor. It enables measurement in the range from 30 dB to 130 dB with a measurement error of ± 1.5 dB. The module returns the output voltage in the range of 0.6 to 2.6 V. DFRobot SEN0232

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

Module with an ambient oxygen concentration sensor. The system allows you to measure the oxygen volume in the range up to 25% with a resolution of 0.15%. The module communicates via the I2C interface. DFRobot SEN0322

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

Gravity: Digital 10A Relay Module is a module with 10A 35VAC / 30VDC relay compatible with devices with control signals in the range of 2.8 ... 5.5V. DFRobot DFR0473

Digital signal isolator for communication via the Gravity I2C interface. It allows you to isolate the I2C digital signal and provide isolated power to the sensor module. DFRobot DFR0565

8-digit, 8-segment LED display module with 16-level brightness adjustment. Communication via the I2C interface. DFRobot DFR0646-R

Analog pH Meter Pro (SEN0169)

Micro:Mate is an expansion board for the micro: bit development module. It provides six 3-pin connectors with I/O outputs, a 3.5mm audio jack connector and is powered from a 5V microUSB connector. DFRobot DFR0518

Fan module with DC motor, propeller and connection cable. DFRobot DFR0332

LM35 analog temperature sensor module for Arduino. DFRobot DFR0023

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

The liquid flow sensor is made of a plastic body, a flow rotor and a Hall sensor. DFRobot SEN0217

Module with an analog MQ4 methane sensor. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0129