Compact optical sensor based on the ITR9608 switch, which detects the presence of objects by interrupting a beam of light in a 5 mm gap. Thanks to high precision and compatibility with platforms such as Arduino or micro:bit, it is ideal for applications in robotics, automation and education. DFRobot DFR1129

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±10 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5454

Great way to upgrade a project that uses a photocell and needs RoHS compliance. Due to the high rejection ratio of infrared radiation, the spectral response of the ambient light sensor is close to that of human eyes. Adafruit 2748

A modern module that enables gesture control and detects the presence of people, ensuring privacy and fast offline interactions. Equipped with a camera and an AI processor, the sensor recognizes 5 hand gestures and detects up to 10 faces within a range of 3 meters, supporting I2C and UART communication, making it an ideal solution for IoT, smart homes and touchless systems. DFRobot SEN0626

A modern current sensor combining the Hall effect with an inductive coil, which allows for precise measurements of both the DC and AC components up to 5 MHz. Thanks to its lightning-fast response time and low path resistance, it is perfect for motor control systems, power converters and protection systems. Pololu 5232

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±10 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5446

Soil moisture sensor based on soil resistivity meansurement

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 5250

Precision Hall effect current sensor, providing galvanic isolation and wide 250 kHz bandwidth. Low conductive path resistance, magnetic interference immunity and ratiometric analog output make it ideal for AC and DC current monitoring applications. Pololu 5281

Tilt Sensor

Compact current sensor based on TMR technology, enabling precise measurements up to 30 A with minimal energy losses. Thanks to a wide 1 MHz bandwidth, galvanic isolation and interference immunity, it is perfect for applications requiring fast response and high accuracy. Pololu 5317

Compact module for bidirectional current measurement using the galvanically isolated Allegro ACS37030LMYATR-040B3 sensor. A combination of Hall-effect sensing and an inductive coil provides DC to 5 MHz measurement bandwidth, a ±40 A range, and a typical response time of 40 ns. Pololu 5695

Gravity: 360 Degree Hall Angle Sensor is a rotation angle sensor measuring a value in the range of 0-360 ° with an analogue output, powered by 5V. DFRobot SEN0221

The MAX31865 amplifier module is an ideal tool for accurate temperature measurement in various applications. It is compatible with 2, 3 or 4-wire PT100 RTD temperature probes. Adafruit 3328

Module with INA237 sensor designed for power monitoring. Allows measurement of voltages up to 85 VDC and current up to 10 A. Uses a 16-bit ADC for precise and accurate readings available via the I2C interface. Adafruit 6340

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

Resistive soil moisture sensor. The board is equipped with a Grove connector and communicates via an analog interface. Seeed Studio 101020008

Atmospheric pressure sensor, capable of measuring up to 4060 hPa, which allows it to be used even in underwater projects to a depth of about 40 meters. Thanks to high precision (±0.5 hPa) and a sampling rate of up to 200 Hz, it is also ideal for dynamic measurements of altitude and pressure in atmospheric conditions. The built-in metal port allows remote pressure measurement through a tube, and compatibility with the STEMMA QT system and ready-made libraries for Arduino and CircuitPython make integration with microcontrollers quick and easy. Adafruit 6067

Pololu 5333 current sensor provides electrically isolated AC and DC current measurement in the range of -50 A to +50 A. Based on the Allegro CT433-HSWF50MR sensor, the module utilizes TMR technology, offering a 1 MHz bandwidth and an analog output signal.

Pololu 5242 with the ACS71240KEXBLT-050B3 chip is a compact current sensor module for precision measurement applications in the ±50 A range. With galvanic isolation, fast response to current changes, and short-circuit detection capability, it is used in power systems, automotive and industrial electronics, and embedded projects. It is ideal for measuring currents in both DC and AC circuits while ensuring safety and accuracy.