This module features a fixed-gain, 38 kHz modulated IR sensor and a corresponding IR LED with oscillator circuit to make a tiny proximity sensor.

ST Microelectronics\' compact Time-of-Flight (TOF) sensor uses a 940 nm laser to precisely measure distances from 1 mm to 1.2 m with a resolution of 1 mm. It supports an I²C interface, has an XSHUT input for shutdown and a GPIO1 output for object detection, and is compatible with voltages from 2.6 to 5.5 V thanks to a built-in regulator and logic level converter. Pololu 3692

Compact current sensor based on TMR technology, enabling precise measurements up to 20 A with minimal energy loss. Thanks to a wide 1 MHz bandwidth, galvanic isolation and interference immunity, it is perfect for applications requiring fast response and high accuracy. Pololu 5304

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

MQ-135 Gas Sensor

Precise, 3-axis geomagnetic sensor based on FlipCore and TMR technology, offering high interference immunity and a wide measurement range of ±2000μT with a resolution of 0.1μT. Thanks to its high sampling rate (up to 400Hz) and resistance to magnetic shocks, it is ideal for AR/VR systems, AGV navigation and drone control. DFRobot SEN0622

Module with a 3-axis ADXL345 digital accelerometer with a configurable measuring range of ± 2/4/8/16 g. It is supplied with the voltage from 2 to 3.6 V and communicates via the I2C or SPI interface. DFRobot SEN0032

This board is a simple carrier of Broadcom’s bidirectional ±40A ACHS-7124 Hall effect-based linear current sensor, which offers a low-resistance (~0.7 mΩ) current path and electrical isolation up to 3 kV RMS. Pololu 4033

The analog pH meter, specially designed for Arduino controllers, with the connector (Gravity series). It has an LED which works as the Power Indicator, a BNC connector and PH2.0 sensor interface. The pH measurements at ± 0.1pH (25?). SEN0161

A precise pressure and temperature sensor that supports I2C communication, which makes it easy to integrate with microcontrollers such as Arduino. With its compact design and versatile use in navigation, altitude measurement or GPS assistance, it is ideal for IoT projects and navigation systems. DFRobot SEN0372

This board is a simple carrier of Broadcom’s bidirectional ±50A ACHS-7125 Hall effect-based linear current sensor, which offers a low-resistance (~0.7 mΩ) current path and electrical isolation up to 3 kV RMS. Pololu 4034

Module with PIR sensor HC-SR501. It can detect movement up to 7 meters with a detection angle of 120 degrees

Module with digital barometer BMP388. The system measures pressure in the range from 300 to 1250 hPa and temperature from -40 ℃ to 80 ℃. DFRobot SEN0251

Module with a smoke concentration sensor made in MEMS technology. It allows gas detection in the range of 10 to 1000 ppm and has an analog output. DFRobot SEN0570

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

ACS724LLCTR-20AU current sensor module with a current measurement range from 0 to 20 A. It communicates via an analog interface. Pololu 4044

Grove module with a proximity sensor, light, color and the ability to detect gestures. The board is equipped with a Grove connector and communicates via I2C. Seeed Studio 101020580

Air quality sensor module based on the ENS160 system. It communicates via the I2C or SPI interface. DFRobot SEN0515

IR distance sensor with a range of up to 400 cm. It has a digital output that changes its state when the sensor detects an object. DFRobot SEN0531

The Iduino SE052 module with a DHT11 sensor enables easy integration with microcontrollers for measuring temperature and humidity. Ideal for weather stations, data loggers, and home automation, it offers stable and long-term performance across a wide range of applications.