Ultrasonic distance sensor MB1000 with a range from 0 to 645 cm. It has an output in the form of a serial interface, an analog signal or generates an impulse whose duration is proportional to the measured distance. Pololu 723

A compact pressure and temperature module ideal for weather stations, drones, and IoT projects. It offers a measurement range of 300–1100 hPa with ±3 Pa accuracy and temperature measurement with ±1°C precision. With a built-in 3.3V regulator and logic level converter, it works with both 3V and 5V microcontrollers. STEMMA QT/Qwiic connectors make it easy to quickly connect and daisy-chain multiple sensors in a single system. Adafruit 6420

Crowtail-Knock Sensor 2.0 is a piezoelectric shock sensor with a digital output, intended for detecting impacts and mechanical vibrations. Designed for simple impulse-detection systems in interactive and alarm projects.

6DoF module with MPU6050 (3-axis accelerometer, 3-axis gyroscope) powered with 3-5V. I2C communication interface

The module with a methane concentration sensor (MQ-4) in the range up to 10,000 ppm, has an analogue output and an output triggered by exceeding the threshold of sensitivity.

Allegro\'s TMR sensor module enables precise, non-contact current measurement without breaking the circuit. It offers high sensitivity, low power consumption, an analog output proportional to the magnetic field, and a threshold detection (FLAG) function. Its compact design, AC/DC support, and easy installation make it ideal for energy-efficient and safe current monitoring systems. Pololu 5355

The module with the natural gas and LPG concentration sensor (modMQ-5) allows the measurement of the concentration of natural gas, carbon monoxide, alcohol and methane. The module has an analogue output and an output triggered by exceeding the threshold of sensitivity.

Temperature sensor module based on an NTC thermistor, designed for measuring ambient temperature in the range from -40°C to 125°C, compatible with Arduino platforms and the Crowtail system. Elecrow CT0011TS

ACS711EX Current Sensor Carrier -15.5A to +15.5A

Precision Hall effect current sensor offering galvanic isolation, wide 150 kHz bandwidth and the ability to measure AC and DC current with very low power loss. With differential measurement and immunity to magnetic interference, it is perfect for applications requiring accurate current monitoring, such as power supplies, converters or motor control systems. Pololu 5296

Module with a digital barometer DPS310. It enables pressure measurement in the range from 300 to 1200 hPa and communicates via I2C or SPI. Adafruit 4494

A module with a PIR motion sensor, which has outputs for controlling 230 V LED lighting. ModPirSen

Pololu Carrier for Sharp GP2Y0D810Z0F and GP2Y0D805Z0F Sensors

Air quality sensor module based on the SGP40 system. It uses CMOSens technology by Sensirion and provides information on the concentration of volatile organic compounds (VOC). Adafruit 4829

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

SCT010T-D 10A 5V AC Current Sensor. Enables measurement of high AC currents. modSCT010T-D

Capacitive liquid level sensor for mounting on non-metallic pipes. DFRobot SEN0509

The AM2315C is an advanced packaged temperature and humidity sensor offering easy integration with microcontrollers thanks to its 2.5V-5.5V power supply and standard I2C interface, providing greater resistance to external conditions than typical SHT sensors, with measurement accuracy of ±2% RH and ±0.3°C

A module with a high precision temperature sensor based on the MCP9808 chip. Equipped with a STEMMA QT connector, it communicates via the I2C interface. Adafruit 5027

Precision Hall effect current sensor offering galvanic isolation, wide bandwidth of 150 kHz and the ability to measure AC and DC current with very low power loss. Thanks to differential measurement and immunity to magnetic interference, it is perfect for applications requiring accurate current monitoring, such as power supplies, converters or motor control systems. Pololu 5295