Gravity: IO Expansion Shield - expansion board for DFRduino M0

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

Digital signal isolator for communication via the Gravity I2C interface. It allows you to isolate the I2C digital signal and provide isolated power to the sensor module. DFRobot DFR0565

A set with a measuring module and a probe for measuring the pH of the solution. It is supplied with the voltage of 3.3 to 5.5 V. It has an analog Gravity output interface. DFRobot SEN0161-V2

The expansion module for the Pyboard 1.1 set. The board has connectors compatible with the Gravity standard. Equipped with digital and analog pins, UART and I2C port. DFRobot DFR0577

Module with digital barometer BMP388. The system measures pressure in the range from 300 to 1250 hPa and temperature from -40 ℃ to 80 ℃. DFRobot SEN0251

Expansion module for the OpenMV Cam M7 camera. The board has connectors compatible with the Gravity standard. It has digital, analog, serial and I2C pins. DFRobot DFR0578

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

et with a measuring module and a probe for measuring electrical conductivity. It allows you to measure the salinity of water and soil. It has a Gravity analog output interface. DFRobot DFR0300-H

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

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

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

Module with temperature and humidity sensor DHT11. It allows you to measure humidity in the range of 20 ... 90% and temperature (0 ... 50 ° C). DFRobot DFR0067

Ultrasonic distance sensor with a range of up to 5m. Communication takes place via the I2C interface. The module is supplied with the voltage from 3.3 to 5.5 V. DFRobot SEN0304

Robust electromagnetic lock in a metal housing, with a copper coil and feedback signal. DFRobot FIT0620

Gravity module with a colored RGB WS2812 LED. Thanks to the controller built into the diode, you can connect the modules in series and control all with one microcontroller port. DFRobot DFR0605

Analogue temperature and humidity sensor module based on SHT30 sensor. It is characterized by high reliability and stability with low energy consumption. It is compatible with 3.3V and 5V controllers, such as Arduino, micro:bit, ESP32. DFRobot DFR0588