Electromagnetic lock DFRobot

A module with an EMG sensor that detects the activity of human muscles and neurons. Generates an analog signal in the range from 0 to 3 V on the output, it does not require the use of a conductive gel. DFRobot SEN0240

A sensor that detects the concentration of ammonia. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0469

Module with liquid level sensor. The set includes a current-voltage converter that generates an analog signal. DFRobot KIT0139

Non-contact liquid level sensor with Gravity interface. It allows you to detect the level of liquid in non-metallic containers. DFRobot SEN0485

Gravity: Heart Rate Monitor Sensor is a sensor used to measure heart activity. Adapted for easy use with Arduino. SparkFun SEN0213

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

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

Module with an IR transmitter operating at a frequency of 38kHz. The module is supplied with the voltage from 3 to 5V. FRobot DFR0095

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

Audio Analyzer is a module with sound analyzer based on the MSGEQ7 system. It divides the sound into seven frequency bands, and then allows you to read the peak levels of each band. It allows you to measure the sound in the following frequencies: 63Hz, 160Hz, 400Hz, 1kHz, 2.5kHz, 6.25kHz and 16kHz. DFRobot DFR0126

Radio transmitter module operating at 433 MHz. It is equipped with Gravity connectors and communicates via a digital interface. DFRobot TEL0140

Module with an analog current sensor. It enables the measurement of AC and DC current up to 50 A. DFRobot SEN0098

Soil moisture sensor with analog output. The probe has two pointed tabs, making it easy to insert into the ground. It is supplied with the voltage of 3.3V or 5V. DFRobot SEN0114

Earth humidity sensor with analogue output, supplied with 3.3 to 5.5 V voltage with Gravity connector. DFRobot SEN0193

Module with MLX90614-DCC sensor for non-contact temperature measurement in the range from -70℃ to 380℃. I2C communication. DFRobot SEN0206

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