Gravity: I2C HUB - 8-port I2C splitter

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

Expansion board for micro:bit modules with connectors compatible with Boson and Gravity sets. DFRobot DFR0521

Conductivity Sensor Switch DFRobot is a touch button that allows you to change the sensor output status by connecting terminals (positive and negative) using metal, human body or fruit and plants. It is powered by 3.3 ... 5 V. DFRobot SEN0223

Gravity: Formaldehyde (HCHO) Sensor is a module for measuring the concentration of formaldehyde (methane) in the air. It can be supplied with voltage in the range of 3.3 ... 6V. DFRobot SEN0231

A digital shock sensor that detects hand shake. The spring-type vibration switch allows you to output pulses when the user shakes once in a certain direction. DFRobot SEN0289

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

Gravity: Digital Crash sensor is a microswitch module (right) often called a limit switch. The module is powered by 5V voltage and has a digital two-state output. DFRobot SEN0138-R

Gravity I2C OLED-2864 Display is an OLED display with I2C interface with 128x64 resolution, powered by 3.3-5V. DFRobot DFR0486

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 that detects the concentration of ozone. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0472

Clock & Timer Development Tools Gravity I2C SD2405 RTC. DFR0469

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

An expansion board designed for FireBeetle M0 and ESP32-E kits. The board has 12 GPIO pins, 5 ADC, UART, I2C and SPI interfaces. The pins are color coded according to the Gravity standard. DFRobot DFR0762

A digital precision current sensor module that measures voltage, current and power of electronic modules and devices up to 26V and 8A with a relative error of ± 0.2%. DFRobot SEN0291

Set of 10 cables, 30 cm long, for analog sensors compatible with the Gravity standard. DFRobot FIT0031

SEN0017