The 5V relay module with opto-isolation allows you to safely control loads up to 10A at voltages up to 250V AC or 30V DC, working with microcontroller platforms such as Arduino or Raspberry Pi

A boost charger module that allows you to charge batteries from USB, DC, or solar panels, and power devices requiring 5V. Equipped with the BQ25185 and TPS61023, it provides high efficiency, optimized power consumption, and support for 500mAh or larger batteries. Adafruit 6106

High temperature measuring kit. It consists of a signal conversion module with a range of -270°C to 1372°C and a K-type thermocouple probe with a range of up to 800°C. I2C communication DFRobot DFR0558

THT resistor, 0.25W, 5%, CF

Ultrasonic distance sensor (sonar) with a measuring range from 50 cm to 5 m. It allows you to read data through one of three interfaces: variable width pulse, analog output or UART TTL interface. DFRobot SEN0272

Ultrasonic distance sensor MB1242 with a range from 20 to 765 cm. It allows you to read data via the I2C interface. DFRobot SEN0273

Ultrasonic distance sensor (sonar) with a measuring range from 20 cm to 7.65 m. It allows you to read data via the I2C interface. DFRobot SEN0274

Ultrasonic distance sensor (sonar) with a measuring range from 50 cm to 10 m. It allows you to read data through one of three interfaces: variable width pulse, analog output or UART TTL interface. DFRobot SEN0277

This discrete MOSFET H-bridge motor driver enables bidirectional control of one high-power DC brushed motor. The small 1.3″ × 0.8″ board supports a wide 6.5 V to 30 V voltage range and is efficient enough to deliver a continuous 17 A without a heat sink.

Module with ACS723 current sensor with a measuring range of AC and DC ± 5 A. It communicates via an analog interface. SparkFun SEN-13679

This advanced Nema 23 stepper motor controller from the CLRS series is designed for precision industrial applications with RS485 (Modbus RTU) network communication. It eliminates the risk of lost steps with closed-loop feedback and offers support for Profile Position, Velocity, Homing, and PR Mode with a 16-position point-to-point control table. The controller supports up to 31 axes on a single network, offers up to 7 A current, a 20 to 50 VDC supply voltage, and passive or active cooling, making it a reliable solution for robotics, automation, and CNC systems. CL2C-RS57

32-bit microcontroller with ARM Cortex-M4 core, 1MB Flash, BGA176, STMicroelectronics

Advanced precision positioning tool based on Septentrio\'s mosaic-X5 multi-constellation GNSS receiver, achieving 6 mm RTK accuracy. Supports GNSS signals from various systems, such as GPS, GLONASS, Galileo, Beidou, NavIC and L-band corrections, offering a position update rate of up to 100 Hz, making it ideal for robotic applications. The kit includes an internal web server for configuration, a National Geodetic Survey-certified GNSS antenna and a rugged aluminum housing for easy installation and reliability in harsh environments. SparkFun GPS-23748

RF module providing wireless connectivity compliant with the IEEE 802.15.4 standard. It operates in the 2.4 GHz ISM band and allows local configuration via BLE with the Digi XBee mobile application. It is equipped with a Silicon Labs EFR32MG SoC transceiver chipset. The range in buildings is up to 90 m, while in open space it reaches up to 3200 m. SparkFun WRL-22627

RF module providing wireless connectivity compliant with the IEEE 802.15.4 standard. It operates in the 2.4 GHz ISM band and allows local configuration via BLE with the Digi XBee mobile application. It is equipped with a Silicon Labs EFR32MG SoC transceiver chipset. The range in buildings is up to 60 m, while in open space it reaches up to 1200 m. SparkFun WRL-22626

Advanced electronic compass module that precisely calculates direction to within a few degrees, and its tilt compensation allows operation in difficult environmental conditions. The module is easy to use and allows to obtain measurement data via I2C interface at 5 Hz. SparkFun SEN-12916

Ultrasonic distance sensor (sonar) with a measuring range from 30 cm to 500 cm. It allows to read data through one of three interfaces: variable width pulse, analog output or RS232/TTL interface. DFRobot SEN0269

HPI0624-2R2, SMD high power inductor, 2,2uH, Ioperation: 5.7A, 24mOhm, ± 20% Isat: 6.5A, ROHS

Ultrasonic distance sensor (sonar) with a measuring range from 50 cm to 5 m. It allows you to read data via an industrial analog interface with a current output of 4-20 mA. DFRobot SEN0267

HSTS016L Hall Sensor. Enables measurement of high AC and DC currents up to 20 A. modHSTS016L