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

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

Gravity: UART Infrared CO2 Sensor is a high precision CO2 sensor. It uses the UART interface for communication. It allows to measure CO2 content in the air in the range of 0 ... 50000ppm. DFRobot SEN0220

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

The infrared distance sensor enables the detection of objects in the range from 3 to 50cm. The sensor has a digital output, the detection threshold is adjusted by a potentiometer. DFRobot SEN0164

A set of elements intended for people who want to start their adventure with programming and electronics. Its main element is the DFRduino Mega 2560 tile (compatible with Arduino MEGA). The set consists of 31 elements. DFRobot KIT0013

Module with an analog MQ6 propane sensor. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0131

Sensor that detects the concentration of chlorine. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0468

Sensor for detecting the distance, intensity and frequency of light (lightning) within a radius of 40 km. The module enables weather enthusiasts to measure data about local storms. DFRobot SEN0290

Module 4-pin sensor adapter. DFRobot FIT0511

4-digit, 8-segment LED display module with 8-level brightness adjustment. Communication via the I2C interface. DFRobot DFR0645-R

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

Gravity: I2C 3.7V Li Battery Fuel Gauge is a module for monitoring the parameters of the Li-ion battery allowing for precise measurement of the flow of charge to / from a 1-source source with an input voltage of 2.5-4.2V. DFRobot DFR0563

Module with a button, LED diode and a yellow cap. DFRobot DFR0029-Y

Module with a bistable button and green LED backlight. The board is equipped with a Gravity connector and communicates via a digital interface. DFRobot DFR0785-G

Module with an ozone detection sensor that performs measurements in the range of up to 10 ppm with a resolution of 0.01 ppm. The module is equipped with an I2C interface. DFRobot SEN0321

A set with a temperature sensor based on the DS18B20 system in the form of a waterproof measuring probe, a sensor adapter and a cable. Communication via the 1-Wire interface. DFRobot KIT0021