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Ultrasonic ToF (time-of-flight) rangefinder with a range of 4 cm to 1.2 meters. The sensor is able to simultaneously measure the range of several objects in its field of view. Communicates via I2C. SparkFun SPX-17271

The module allows measuring the light around the sensor. The measuring range is in the range 1 - 65535 LUX, and communication takes place using the I2C bus. modBH1750 (GY-302)

Dual Full-Bridge Driver, Power SO20, STM, RoHS

Arduino Starter Kit with Uno board

The BME280 integrated circuit is a sensor of atmospheric conditions (pressure, humidity, temperature) in the SMD casing (2.5mmx2.5mm). The sensor has very low power consumption (average 3.6uA) and has an I2C / SPI bus. The Bosch Sensortec system

Raspberry Pi Expansion Board, Power Relay, Waveshare

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 9 V. The board measures only 0.7″ × 0.7″, but it allows a typical continuous output current of up to 2.5 A. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors.

Computer with Intel Celeron N5105 quad-core processor with clock frequency up to 2.9 GHz. Equipped with two DDR4 memory slots, M.2 PCIe and eMMC. It has numerous communication connectors including USB, SATA, RJ45 Ethernet, and HDMI and DisplayPort video outputs. Hardkernel Odroid H3

Accelerometer and gyroscope module, allows measurement of acceleration in the range of +/- 16 G and angular velocity in the range up to +/- 2000 dps. modMPU6500 (GY-6500)

The Pololu A-Star 32U4 Prime is a general-purpose programmable board based on Atmel’s ATmega32U4 AVR microcontroller and arranged in the common Arduino form factor exemplified by the Uno R3 and Leonardo. Pololu 3114

Hybrid bipolar stepping motor with integrated 38cm (15″) threaded rod as its output shaft, turning it into a linear actuator capable of precision open-loop positioning. The motor has a 1.8° step angle (200 steps/revolution) and each phase draws 1.7A at 2.8V, allowing for a holding torque of 3.7kg-cm (51 oz-in). Pololu 2690

Unshielded UTP category 5E Ethernet network cable with RJ45 plugs. Lanberg PCU5-10CC-0200-B

Module with PIR EKMC4607112K motion sensor, power consumption in standby mode up to 170 uA. SparkFun SEN-17372

The compact (0.4″ × 0.5″) D24V5F9 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 9 V while allowing for a maximum output current of 500 mA. Pololu 2845

Mark LaFay

GPS module with GNSS receiver ZED-F9P. It can receive data from GPS, GLONASS, Galileo and BeiDou systems. It has USB, UART, I2C and SPI interfaces. RTK and high accuracy up to 10 mm. Waveshare ZED-F9P GPS-RTK HAT

The editors of the Make magazine

modTSL2561 is a module containing a light sensor TSL2561; communication with the system takes place using the I2C bus

GY-346 is a module with a digital acceleration sensor (accelerometer) ADXL346; communication on the I2C / SPI bus

Miniature (25x40mm) WiFi b / g / n module with 2.0mm goldpin connection with TCP and UDP protocols operating in standalone and access point mode. The module is equipped with UART and Ethernet interfaces, it is also possible to control GPIO lines. Powered by 3.3V. HF-A11-1