Module with a BME688 sensor for measuring gas concentration, pressure, temperature and humidity. I2C or SPI communication. SparkFun SEN-19096

Module with a digital temperature and humidity sensor based on the SHT31-F system. Communication via the I2C interface. DFRobot SEN0332

Module with ethanol sensor made in MEMS technology. It allows gas detection in the range of 1 to 500 ppm and has an analog output. DFRobot SEN0569

Compact Pololu 5292 current sensor based on the ACS37220 IC, designed for measuring currents up to ±100 A at a 5 V supply voltage in applications requiring galvanic isolation and an analog output. Pololu 5292

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 5291

Module with BME680 sensor for measuring environmental conditions such as concentration of volatile organic compounds (VOC), atmospheric pressure, temperature and humidity. I2C or SPI communication. SparkFun SEN-16466

Energy-saving 24 GHz sensor LD2410S based on FMCW technology and the Doppler effect, designed to detect human presence and micro-movements in real time. Thanks to the built-in AI algorithm and a range of up to 8 meters and a wide detection angle (±60°), it is perfect for building automation, smart lighting and IoT devices. It supports UART and GPIO interfaces, offers very low power consumption (from 0.04 mA in standby mode) and allows configuration through intuitive tools, making it ideal for integration in modern projects.

Module with BME280 environmental sensor. It allows you to measure temperature, humidity and pressure. The sensor is equipped with two communication interfaces: SPI and I2C (Qwiic). SparkFun SEN-15440

ToF laser rangefinder. It enables detection of many objects, has a field of view of about 25 ° and is able to detect objects at a distance of up to 5 m. Communicating via the I2C interface. Pololu 3416

Module with a distance sensor with a range of up to 130 cm. It has a digital output that generates a pulse with a width proportional to the measured length. Pololu 4071

A module with a rotary encoder and RGB LED lighting for M5Stack sets. It communicates via the I2C interface. M5Stack U135

Module with an analog AC current sensor in a set with a probe for non-contact measurement of alternating current with a current of up to 5A. DFRobot SEN0287

ToF distance sensor (Time of flight) with a range of up to 60 cm. The module is powered with the voltage of 3.3 V and communicates via the I2C interface. DFRobot SEN0429

Laser distance sensor with a measuring range of up to 2 m, based on the ToF measurement technique. Communication via the I2C interface

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±30 A range with galvanic isolation. It features an analog VOUT output with a sensitivity of 44 mV/A and 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 (~1.6 mΩ) minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5441

Small form factor IR camera capable of tracking up to four heat/IR sources, can be controlled with Arduino, AVR via I2C interface. SEN0158

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 its low current path resistance (~1.6 mΩ) minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5452

Ideal for environmental sensing and data logging and perfect for build a weather stations or humidor control system; built-in 4.7KΩ pullup resistors for I²C communications. SEN-13763

A reflective sensor that precisely measures the intensity of light reflected from a surface using an IR LED and a phototransistor. It offers a long detection range—optimally around 20 mm, and up to 80 mm—thanks to the QTRXL sensor with a built-in lens and adjustable LED brightness. It generates a digital RC signal that\'s easily read by microcontrollers like Arduino or Raspberry Pi. Pololu 4540