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

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

The ACS71240 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 120 kHz) and low conduction resistance (0.6 mΩ), it minimizes energy loss and offers a fast response time of less than 5 µs. Pololu 5244

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

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

Crowtail-Mini PIR Motion Sensor 2.0 is a miniature digital PIR sensor with a built-in DSP and RFI filter, intended for motion detection in compact systems. It is used in alarms, lighting control and robotics.

Module with a formaldehyde sensor made in MEMS technology. It allows gas detection in the range of 0 to 3 ppm and has an analog output. DFRobot SEN0563

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

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 5295

Module with 11-channel AS7341 sensor that allows to detect light in different wavelength ranges (color detection). It communicates via the I2C interface. DFRobot SEN0365

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

The VCNL4200 sensor module combines distance detection and ambient light measurement, ideal for applications such as robotics and home automation. Thanks to infrared technology, the detection range is up to 1.5 meters, and the built-in ALS sensor allows you to measure light intensity in the range of 0.003 to 1570 lux, making it a versatile solution for monitoring lighting conditions. Adafruit 6064

The MQ-8 module allows the measurement of hydrogen concentration in the air. It has an analogue output and an output triggered by exceeding the threshold of sensitivity.

Module with LPG gas concentration sensor (MQ-6) in the range of 200 - 10,000 ppm. The module has an analogue output and a digital output triggered by exceeding the threshold of sensitivity. modMQ-6

Laser dust sensor is a digital universal particle concentration sensor,it can be used to obtain the number of suspended particulate matter in a unit volume of air within 0.3 to 10 microns, namely the concentration of particulate matter, and output with digital interface, also can output quality data of per particle. DFRobot SEN0177

Precision Hall effect current sensor offering galvanic isolation, wide 150 kHz bandwidth and the ability to measure AC and DC current with very low power loss. With 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 5296

Range finder with a measuring range up to 12m. The current consumption is up to 120mA and the supply voltage 4.5 ... 6V. Communication via the UART interface. DFRobot SEN0259

Module with a precise temperature sensor MCP9808. It is supplied with the voltage ranging from 2.7 to 5.5 V and communicates via the I2C interface

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

Crowtail – Flame Sensor 2.0 is a module detecting infrared radiation and flame sources, operating in the range of 760–1100 nm. Intended for use in safety systems, robotics, and educational projects.