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

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

Module with Hall sensor, allows for magnetic field detection, can be used to measure angle of rotation, displacement, mechanical vibrations, etc. The module has a connector in accordance with the Gravity standard. DFRobot SEN0185

The module with the EEPROM 24LC256 memory chip with a capacity of 32 kB. It is supplied with the voltage ranging from 2.5 V to 5.5 V and communicates via the I2C interface (Gravity connector). DFRobot DFR0117

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

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

A sensor that detects the concentration of hydrogen chloride. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0474

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

A small WiFi module designed for IoT applications. It can communicate with the motherboard via the I2C or UART interface. DFRobot TEL126

Gravity sensor adapter with 3-pin terminal connector. There are two 10 kΩ pull-up and pull down resistors on the board, set with a jumper. DFRobot DFR0055

NFC module with built-in antenna on the board. The module has a Gravity connector. Memory communication can be done through one of the serial interfaces: UART or I2C. DFRobot DFR0231-H

Module with an analog TEMT6000 light intensity sensor. The voltage at the output is linearly correlated with the intensity of the incident light. The module is supplied with the voltage from 3.3 to 5V. DFRobot SEN0043

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

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

The analog pH meter, specially designed for Arduino controllers, with the connector (Gravity series). It has an LED which works as the Power Indicator, a BNC connector and PH2.0 sensor interface. The pH measurements at ± 0.1pH (25?). SEN0161

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