NE555 pulse generator module with adjustable frequency

GNSS receiver to receive navigation signals from satellite navigation systems such as GPS and BeiDou. It offers positioning accuracy of up to 2 m. DFRobot TEL0157

IR proximity sensor used to detect objects at a distance of 10mm to 80mm using infrared radiation. It is powered by 5 V and has a digital output. DFRobot SEN0556

The GR10-30 sensor module, which can recognise up to 12 user gestures from a distance of up to 30 cm. It supports communication via both UART and I2C interfaces. DFRobot SEN0543

Non-contact water turbidity sensor. It is capable of detecting the light transmittance and scattering coefficient of liquids in transparent cylindrical containers from 40 to 50 mm in diameter. It communicates via a UART interface. DFRobot SEN0554

A magnetic latching relay that features low power consumption and quiet operation. It allows switching of signals up to 36 V and 10 A. It remains in the last position it was in before power was lost. DFRobot DFR0996

The SD3031 precision real-time clock (RTC) module. It has an integrated quartz resonator, on-board SRAM and communicates via an I2C interface. DFRobot DFR0998

Step-down DC-DC converter module that converts a 12 V or 11.1 V output voltage (e.g. from a lithium battery) to a voltage in the range of 1.8 V to 5.1 V. It has a power output of up to 60 W, and with an output current of up to 18 A, the module can be used to power a 5 m WS2812 RGB LED strip. DFRobot DFR1025

An integrated data acquisition module that includes functions such as data display, automatic sensor recognition and calibration, data storage, RTC clock and data conversion to make data acquisition more convenient and efficient. DFRobot DFR0999

Ambient light sensor housed in a transparent hemisphere and waterproof housing. It supports a detection range of 0 to 65535 lux and communicates via an I2C interface. DFRobot SEN0562

An offline speech recognition module that enables recognition and interpretation of user spoken commands without access to an external pattern database. It is equipped with 121 commonly used fixed command words and the ability to learn up to 17 new customised instructions. DFRobot SEN0539-EN

The GR10-30 sensor module, which can recognise up to 12 user gestures from a distance of up to 30 cm. It supports communication via both UART and I2C interfaces. DFRobot SEN0561

Analogue current sensor module. Allows measurement of AC and DC currents up to 50 A. DFRobot SEN0098-V2

Cable (adapter) of a BNC connector to banana plugs. Allows convenient connection of a device to an oscilloscope, for example. BNC Q9

Cable (adapter) from BNC connector to banana plug. Allows convenient connection of a device, e.g. to an oscilloscope

The NRF24L01+ chip module for radio communication, which operates in the 2.4 GHz ISM band. It is used in various applications such as wireless sensors, remote control, wireless networks. It supports the Enhanced ShockBurst protocol, which provides automatic packet handling. It communicates via an SPI interface

The NRF24L01+ chip module for radio communication, which operates in the 2.4 GHz ISM band. It is used in various applications such as wireless sensors, remote control, wireless networks. It supports the Enhanced ShockBurst protocol, which provides automatic packet handling. It communicates via an SPI interface