Step-Down converter with adjustable output voltage from 4.2 V to 15 V and output voltage up to 45 V. It is equipped with reverse voltage protection, input undervoltage lockout, overload and short circuit protection. Pololu 4875

The module allows you to connect 4 arcade buttons with LED backlight. Equipped with a STEMMA QT connector, it communicates via the I2C interface. Adafruit 5296

Module with a 3-axis MSA311 accelerometer with a configurable measuring range of ±2g/±4g/±8g/±16g. Equipped with a STEMMA QT connector, it communicates via the I2C interface. Adafruit 5309

Hall sensor module. It has a digital output on the XH2.54 connector

Disposable biomedical electrodes that allow you to perform experimental ECG measurements. DFRobot FIT0510

Finder 38.52.7.024.0050 is a relay interface module with a 24 V DC coil, equipped with two changeover contacts (DPDT) with a load capacity of 8 A. It is designed for DIN rail mounting and features screw terminals for easy installation.

Pin strip straight in black, single-row, female, 1x8, pitch 2.54mm, THT, RoHS. PB08S

Module with a 2-channel driver for DC motors L293D designed to work with the Raspberry Pi Pico. It can work with a voltage from 6 to 12 V and a current of up to 600 mA. SB Components 21468

A stepper motor driver for precise control of bipolar motors, offering six microstepping modes (from full to 1/32). It operates within a voltage range of 8.2V to 44V and delivers up to 1.5A per phase without cooling or up to 2.2A with a heatsink/fan, ensuring smooth and stable operation even at high speeds. Compatible with the popular A4988 and DRV8825 drivers, with an integrated regulator and overheating, overload, and short circuit protection, the TB67S581FNG is a reliable and versatile solution for applications requiring precise motion control. Pololu 2988

A stepper motor driver for precise control of bipolar motors, offering six microstepping modes (from full to 1/32). It operates within a voltage range of 8.2V to 44V and delivers up to 1.5A per phase without cooling or up to 2.2A with a heatsink/fan, ensuring smooth and stable operation even at high speeds. Compatible with the popular A4988 and DRV8825 drivers, with an integrated regulator and overheating, overload, and short circuit protection, the TB67S581FNG is a reliable and versatile solution for applications requiring precise motion control. Pololu 2989

Pololu 5650 is a JST PH and SH 2-pin connector adapter designed for integration with prototyping boards and modules with a 2.54 mm pitch. It allows conversion between JST PH and SH standards and enables quick wire connections in power and communication projects.

LVDS to HDMI converter module with dual LVDS connectors

The USR-IO4040 is an I/O expansion module designed specifically for use with the USR-M100/M300 modules. This module allows for the expansion of your system with additional digital ports, providing even greater flexibility in managing and controlling devices in industrial applications. With its robust construction and ease of integration, the USR-IO4040 is an excellent complement to the USR-M100/M300 gateway, enhancing its monitoring and control capabilities. USR-IO4040 

The LilyPad series module is designed for prototyping interactive e-textiles. It consists of a board with a SAMD11 microcontroller and a CR2032 battery socket, LEDs, a light sensor and a button. SparkFun DEV-14063

Pololu 5654 is a four-channel JST PH and SH connector adapter for systems based on a 2.54 mm pitch. It facilitates the integration of signal and power wires in prototyping projects and electronic devices where 4-pin connectors are required.

Module with light sensor (photoresistor). An analog output was led out on the XH2.54 connector

Module with a magnetic sensor based on a reed switch. Reacts to the action of an electromagnet or a permanent magnet

360-degree laser scanner (LIDAR) with a range of up to 10 meters and a measurement frequency of up to 12 Hz. LIDAR X4

2-channel module with relays designed to work with the Raspberry Pi Pico. It can switch signals up to 120 V AC or 24 V DC and currents up to 2 A. SB Components 21376