Crowtail-PIR Motion Sensor 2.0 is a digital motion sensor for use in alarm systems, building automation and interactive projects. It provides a wide detection angle and adjustable range in a compact form with easy connection through the Crowtail interface.

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 5293

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 5290

A small module with a GY-PAJ7620U2 gesture detection sensor. Can recognize 9 gestures. Communication via the I2C interface.

The Crowtail-Water Sensor 2.0 module enables detection of contact with water in digital systems. It is used in rain sensors, leak detection and overflow protection of tanks.

Module with LPG gas concentration sensor (MQ-6) in the range of 200 - 10,000 ppm. The module has an analogue output and a digital output triggered by exceeding the threshold of sensitivity. modMQ-6

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

Crowtail – BMP180 Barometer is a digital pressure and temperature sensor with an I2C interface, intended for precise measurements in mobile and environmental systems. It offers high accuracy, low power consumption, and readiness to operate without additional calibration.

A high-precision 12-bit magnetic encoder that provides accurate angle measurement from 0 to 360°. It supports I2C and PWM interfaces for easy integration with microcontrollers and control systems. Powered by 5V and featuring 1024-bit analog resolution, it\'s ideal for projects requiring smooth and stable operation. Makerbase MKS AS5600

LPS35HW waterproof barometer module. It can measure pressure from 260 to 1260 hPa and communicates via I2C or SPI. Adafruit 4258

The TLE5012B precision magnetic encoder with sensor offers angle measurement in the 0–360° range with a resolution of 4096 CPR. Its compact design and low current consumption of 14 mA make it ideal for projects requiring energy efficiency and reliability. It is compatible with motor control systems such as ODrive, as well as robotics and industrial applications. Makerbase MKS TLE5012B

Crowtail – 3-Axis Digital Accelerometer (±16g) is a digital MEMS accelerometer with a wide measurement range and high sensitivity, based on the ADXL345 chip. Intended for projects requiring motion, orientation, and acceleration detection in robotics, safety systems, and interactive devices.

Piezoelectric vibration sensor with analog output, not loaded with mass, can be used as a vibration sensor. LDT0-028K/L

Pressure sensor module with I2C interface (BMP085)

Adapter for MQ gas sensor with potentiometer for analog signal calibration. MOD 72

Crowtail – BMP280 Barometer Sensor 2.0 is a compact digital sensor for measuring temperature, atmospheric pressure, and altitude, using the I2C interface. Intended for use in weather projects, mobile environmental systems, and consumer electronics.

Tilt sensor module with digital output. Equipped with an XH2.54 connector

Soil moisture sensor based on soil resistivity meansurement

The Sharp GP2Y0A02YK0F sensor enables precise distance measurement in the range of 20–150 cm using an analog output. Its stable characteristics and ease of integration make it a popular solution in mobile robotics and obstacle detection systems.

ACS724LLCTR-30AB current sensor module with a DC and AC measurement range from -30 to +30 A. It communicates via an analog interface. Pololu 4047