This module provides precise, galvanically isolated current measurement within a range of ±30 A and voltage up to 480 VRMS, providing RMS, instantaneous, and active, reactive, and apparent power readings. Equipped with an I²C interface, 4-pin JST SH connectors, and 2.54 mm pins, it allows for easy integration with Qwiic, STEMMA QT, and standard microcontrollers. Configuration stored in EEPROM allows for defining address and overload thresholds. The sensor offers three voltage measurement ranges (120 V - default, 240 V, 480 V RMS) and the ability to detect overvoltages. Built-in protection and low conduction resistance ensure safe and accurate measurements. The version comes with soldered screw terminals and a 240 Vrms jumper. Pololu 5412

A miniature lidar distance sensor that detects objects up to 5 cm away, regardless of color, transparency, or lighting. It generates a digital signal (0 V on detection), operates in the 3-5.5 V range, draws only 30 mA, and supports sleep mode via the ENABLE pin. Ideal for robotics, automation, and contactless interfaces, it offers a fast response time (142 Hz), switching hysteresis, and a compact housing with an indicator LED. Pololu 5550

Air quality sensor module based on the SGP40 system. The board is equipped with Qwiic connectors. SparkFun SEN-18345

A set for building a weather station equipped with a rainfall sensor and a wind speed and direction meter. SparkFun SEN-15901

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 5305

LPS28DFW absolute pressure sensor module. The chip features a wide measurement range of 260 to 1260 hPa or 260 to 4060 hPa and a high accuracy of 0.5 hPa. It communicates via an I2C interface. SparkFun SEN-21222

The INA3221 module, which allows simultaneous measurement of voltage and current for three power supplies via I2C with ±1% precision. With a 13-bit ADC and built-in 0.05Ω shunt resistors, it allows accurate monitoring of currents up to ±3.2A and voltages up to +26VDC. Adafruit 6062

An ultrasonic sensor whose operation is based on the time-of-flight (ToF) principle. In addition to distance information, the sensor also generates an echo energy intensity value useful for distinguishing between different materials or surfaces. Seeed Studio 101021097

Module with digital barometer BMP581. It enables pressure measurement in the range from 300 to 1250 hPa with an accuracy of ± 5 Pa and communicates via I2C. SparkFun SEN-20171

Rain sensor consisting of a measuring module and a container. It provides users with information about the precipitation value in millimeters and system operation time via UART and I2C interfaces. DFRobot SEN0575

Ultrasonic ToF sensor dedicated to the identification of materials at a distance of 2 to 10 cm. It can distinguish between hard and soft materials and transmits information via digital IO (high/low) or UART interface. DFRobot SEN0560

Crowtail-Microwave Sensor 2.0 is a motion sensor module based on the Doppler effect, designed for integration with Arduino and Crowduino platforms. Thanks to its resistance to environmental factors, it is suitable for industrial automation, security systems and smart installations.

ACS724LLCTR-2P5AB current sensor module with a DC and AC measurement range from -2.5 to +2.5 A. It communicates via an analog interface. Pololu 4040

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

Module with a human presence and movement sensor designed based on the STHS34PF80 infrared sensor. Enables monitoring of radiation and ambient temperature within an 80° field of view. The sensor can precisely detect movement and presence within a range of 4 m. It uses the I2C or SPI interface for communication and has built-in Qwiic connectors. SparkFun SEN-23253

A module with an acceleration and rotational speed sensor based on the LSM6DS3TR-C system and the LIS3MDL magnetometer. Equipped with a STEMMA QT connector, it communicates via the I2C or SPI interface. Adafruit 5543

The LD2411-S module is a 24 GHz radar for precise detection of human motion and micro-motion at distances up to 6 meters. Hi-Link HLK-LD2411S

ToF distance sensor (Time of flight) with a range of up to 5 m. The module is supplied with the voltage of 3.3 V and communicates via the I2C interface. SparkFun SEN-19036

The Finder 7T.81.0.000.2301 is a Normally Open (NO) thermostat designed for precise temperature control in electrical systems. It operates from -20°C to +40°C, handling currents up to 10A at 250VAC, making it suitable for many industrial applications.