The 2.54 mm 20P IDC plug allows for quick connection in small and advanced electronic systems. The design provides high reliability with standard 2.54 mm compatibility. conIDC-20P-A

The :MOVE mini MK2 robot kit allows for automatic line tracking, enhancing the interactivity of educational projects. The kit is easy to assemble, requires no soldering, and adjustable sensors allow for precise sensitivity adjustments for the left and right sides of the robot. The module can track both a dark line on a light background and a light line on a dark background, and backward compatibility with the original :MOVE mini makes it easy to use in older projects. Kitronik 5659

An efficient Bluetooth 4.0 module that ensures excellent operating parameters and significantly increases the efficiency of wireless communication. It is based on the popular Nordic BLE 4.0 nRF51822 microcontroller, which guarantees both performance and low power consumption. It has a built-in Bluetooth stack and is controlled via the UART interface using AT commands. WT51822-S4AT

This module allows you to automatically turn on LEDs in the dark thanks to a built-in light sensor. It comes with a CR2032 battery holder and a slide switch to turn the module on and off. It also has two sets of pads for connecting LEDs, allowing for flexible lighting design. Kitronik 2721

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±10 A range with galvanic isolation. It features an analog VOUT output with a sensitivity of 132 mV/A and a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance (~1.6 mΩ) minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5440

Expansion module for the OpenMV Cam M7 camera. The board has connectors compatible with the Gravity standard. It has digital, analog, serial and I2C pins. DFRobot DFR0578

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±10 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5444

Module with a precise clock RTC DS3231. Communication via the I2C interface. Waveshare Pico-RTC-DS3231

LTR390-UV UV light sensor module. Allows measurement of ultraviolet and visible light intensity. Equipped with a Gravity connector, it communicates via an I2C or UART interface. DFRobot SEN0540

Module with e-Paper display with a diagonal of 2.9" and a resolution of 296x128 px. Communication via the SPI interface. Waveshare Pico-ePaper-2.9 

This e-textile module allows you to program interactive projects such as clothing, accessories, and educational gadgets. It features a PICAXE 14M2 chip, a white LED, a momentary pushbutton, and 6 I/O pins with PWM and ADC functionality, allowing you to control LEDs, buzzers, and other components. The module is powered from 3 to 5.5V via a JST connector or wired connections, and its large connection points facilitate installation in fabrics. Kitronik 2751

Module containing TSH82 operational amplifier from STMicroelectronics. The system has two built-in amplifiers and each of them is available separately on the pins of the board as inverting amplifiers. Sparkfun BOB-14874

Two-button module with 4 colored overlays. The board is equipped with a Grove connector and communicates via a digital interface. Seeed Studio 111020103

The AC200 controller enables central management and power supply for up to 4 access points in small wireless networks. It supports 200 APs and 100 users, features gigabit ports, and offers enterprise-class functions in a compact enclosure for desktop, wall, or DIN rail mounting.

WiFi antenna with SMA male plug working in the 2.4 GHz frequency band. It has a gain of 3 dBi

Pulse generator module based on the NE555 system with frequency control using a potentiometer. It is powered with the voltage ranging from 5 V to 12 V

A switching converter that regulates 24V voltage from an input range of 2.6V to 20V. It offers high efficiency of 70-95% and the ability to operate with a continuous input current of up to 900mA and a peak current limit of 2.2A. With a switching frequency of 1.6MHz and a power-saving mode, it is suitable for both high-performance and low-power applications. Pololu 5588

Cooling fan with a Molex 51021-0200 connector designed for Odroid N2+ minicomputers

ACS724LLCTR-05AU current sensor module with a current measurement range from 0 to 5 A. It communicates via an analog interface. Pololu 4048