Gravity: 4-Digital LED Segment Display Module - 4-digit LED segment display (green)

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

Heart rate measurement module compatible with Arduino and Raspberry Pi (Gravity: Heart Rate Monitor Sensor For Arduino). It uses PPG technique, which in a simple and cheap way is able to measure the changing volume of blood. DFRobot SEN0203

Module with a 3-axis H3LIS200DL accelerometer. The system has a user selectable wide measurement scale of ±100g/±200g. There is a Gravity connector on the board. DFRobot SEN0412

DFRobot\'s Gravity Genuino (Arduino) 101 Starter Kit is an absolute beginner kit to get started with Arduino/Genuino 101. It comes with 11 projects with easy to follow tutorials. The Gravity interface (Plug&Play) provides the kit a fantastic user experience while keeping the great expandability. It is an excellent kit for STEM and Maker education. DFRobot KIT0113

A set of 5 modules with a bistable button and LED backlight. The boards are equipped with a Gravity connector and communicate via a digital interface. DFRobot DFR0789

Module with an analog MQ7 carbon monoxide sensor. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0132

Gravity: Digital Water Flow Sensor is a liquid flow sensor that uses a Hall sensor. Powered by 5 ... 12V voltage. DFRobot SEN0216

Module with a digital temperature and humidity sensor based on the SHT31-F system. Communication via the I2C interface. Equipped with a Gravity DFRobot SEN0334 connector

Module with barcode and QR scanner. It allows you to read one-dimensional and two-dimensional codes and communicates via the I2C and UART interface. DFRobot SEN0486

Non-contact liquid level sensor. It allows you to detect liquids without the need to immerse the sensor in the liquid. Digital output. DFRobot FIT0212

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

BME280 integrates onboard temperature sensor, humidity sensor and barometer. It provides both SPI and I2C interfaces; and can be widely used in environmental monitoring, story height measurement and Internet of Things (IoT) control and so on. SEN0236

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

A sensor that detects the concentration of carbon monoxide. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0466

Laser dust sensor is a digital universal particle concentration sensor,it can be used to obtain the number of suspended particulate matter in a unit volume of air within 0.3 to 10 microns, namely the concentration of particulate matter, and output with digital interface, also can output quality data of per particle. DFRobot SEN0177

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