Crowtail – Electricity Sensor 2.0 enables precise measurement of alternating current up to 5 A, converting the signal into a 2 V analog voltage. Intended for energy monitoring projects and integration with microcontroller systems.

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.

This sensor utilizes advanced signal processing technology by using a powerful chip (XKC-Y25-T12V) with high-speed operation capacity to achieve non-contact liquid level detection; suitable for hazardous applications: detecting toxic substances and all kinds of liquid in an airtight container under high pressure. SEN0204

Capacitive soil moisture sensor with analog output (Grove connector). The probe has a pointed tip, which allows it to be easily inserted into the ground. Cytron MAKER-SOIL-MOISTURE

ACS711EX Current Sensor Carrier -31A to +31A

Module with a digital temperature and humidity sensor based on the SHTC3 system. Communication takes place via the I2C interface. DFRobot SEN0414

Current-to-voltage converter module designed for devices with a current signal output. It allows linear conversion of current signals from 0 to 25 mA into voltage signals from 0 to 3 V. DFRrobot SEN0262

Module with 9-axis IMU sensor BNO055. It has a built-in processing chip that returns orientation in 3D space. Communicates via I2C. Adafruit 4646

Module with PIR S16-L221D motion sensor. The board is equipped with a Grove connector and communicates via a digital interface. Seeed Studio 101020617

Occupancy sensor based on 24 GHz millimeter wave technology with FMCW, enabling precise detection of people, measuring distances up to 25 m and movement speed. Thanks to high resistance to environmental interference, it works reliably in conditions such as dust, light or temperature changes, outperforming traditional PIR and ultrasonic sensors. Compact size and installation flexibility make it perfect for intelligent lighting, security systems and building automation. DFRobot SEN0609

Module with a steam sensor. It can be supplied with the voltage of 3.3 V or 5 V. It has an analog output. DFRobot SEN0121

Precise sensor measuring UV radiation in the range of 240 to 370 nm, directly outputting UV index value (0-11) and hazard level (1-5). Thanks to I2C and UART interface support and compact design, it is ideal for environmental monitoring, health protection and optimization of photovoltaic installations. DFRobot SEN0636

Triple-Axis Accelerometer Module +-3g, Analog-Output, RoHS

Magnetic switch (reed switch) enclosed in a plastic housing. It has a compact structure and low weight. DFRobot SEN0481

This soil moisture sensor uses a resistive measurement between two gold-plated probes. Corrosion resistance ensures long life and stable measurements. It works with the micro:bit and Arduino platforms, allowing for reading soil moisture levels as an analog signal. Adafruit 6362

Module with humidity and air temperature sensor based on the AM2302 system. It allows temperature measurement in the range from -40 to 80 ° C and the humidity measurement takes place in the range of 5 to 99% RH. The module has a connector in accordance with the Grove standard. Seeed Studio 101020019

Compact expansion with advanced data monitoring features, equipped with temperature, humidity, light sensors and RTC clock. With low power consumption, battery monitoring function and I2C protocol support, it is ideal for long-term battery-powered projects, offering precise measurements and efficient power management. Seeed Studio 114993446

The ACS72981 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 250 kHz) and low conduction resistance (0.2 mΩ), it minimizes energy loss and offers a fast response time of less than 2 µs. Pololu 5273

Crowtail – Collision Sensor 2.0 is a mechanical collision sensor with a digital output, detecting impacts through pressure on a microswitch. Used in mobile robotics for detecting contact with obstacles.

Crowtail – Digital Temperature Sensor 2.0 is a precise TMP102 digital sensor with an I2C interface, operating in the range of –40°C to +125°C. Intended for use in temperature-measurement systems in automation, consumer electronics, and environmental monitoring.