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

Gravity: Analog Signal Isolator is a module that allows to isolate sensors in the system and eliminate mutual interference of sensors powered by 5V. DFRobot DFR0504

Module with LCD display 16x2 characters with blue backlight. It is supplied with the voltage from 3.3 V to 5 V and communicates via the I2C interface. DFRobot DFR0555

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

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

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

Expansion board for Arduino, allows easy connection of XBee modules, has separate outputs for I2C, SPI and UART buses. The built-in 3.3V voltage stabilizer and operating mode switch make it easier to program the Arduino when the XBee module is connected to the sockets. DFRobot DFR0265

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

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

Module with an analog MQ5 LPG sensor. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0130

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

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

Gravity module with a fingerprint reader (capacitive sensor). It uses an efficient processor and the IDfinger6.0 algorithm. It ensures quick identification and stability of operation, communicates via the I2C interface. DFRobot SEN0359

A set of 10 cables, 30 cm long, compliant with the Gravity standard. DFRobot FIT0513

I2C multiplexer module with TCA9548A system. Allows you to connect up to 8 devices. The system works like a gateway - it transmits I2C interface data to one of the 8 main busses. This allows you to connect up to 8 devices with the same address. DFRobot DFR0576

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

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