32-channel IO expander with 14 analog inputs. The board communicates via the Ethernet interface. Numato Lab GPETH320001

A reflective sensor that precisely measures the intensity of light reflected from a surface using an IR LED and a phototransistor. It offers a long detection range—optimally around 20 mm, and up to 80 mm—thanks to the QTRXL sensor with a built-in lens and adjustable LED brightness. It generates a digital RC signal that\'s easily read by microcontrollers like Arduino or Raspberry Pi. Pololu 4540

DFRobot FIT1023 USB camera with an OV5648 sensor and autofocus provides high image quality and easy integration thanks to UVC compatibility. It supports MJPEG and YUY2, operates without drivers, and is used in vision systems, education, automation, and AI prototyping.

Power switch that allows you to control your system\'s power on and off with simple button presses, with the ability to force shutdown after 10 seconds. It features a durable control circuit, LEDs, a self-resetting fuse, and offers low quiescent current, making it ideal for energy-efficient projects. SparkFun PRT-26993

8-channel module with relays, designed to work with the Raspberry Pi. It can switch 250VAC/7A or 30VDC/10A signals. SB Components 21871

Display connector E-paper GDE035A3, for surface solder, 24 pins

A pair of 5-pin straight magnetic connectors. It has a 2.2 mm pitch and can conduct a current of 3 A

The QTRXL-MD-01A-S reflective sensor with an analog output enables precise detection of lines and objects. Thanks to its extended range and high sensitivity, it is used in robotic and automation projects. The JST SH connector allows easy integration, and the wide supply voltage range enables flexible use in 3.3 V and 5 V systems.

A precision reflective sensor utilizing an IR diode and a phototransistor to measure light reflected from a surface. It offers an analog voltage output proportional to the reflected light and an optimal measurement range of 10 mm. Its low power consumption and compact size make it ideal for line-follower robots, edge detection systems, and educational projects. Pololu 4440

Soil moisture sensor dedicated to micro:bit. It is supplied with the voltage from 3.3 V to 5 V and communicates via an analog signal. SparkFun SEN-15272

A compact relay module with an Omron G5LE-14-DC5 relay, capable of controlling loads up to 10 A with a 5 V coil voltage. Thanks to a BSS138K MOSFET transistor, it can be activated by a 2.5 V to 20 V logic signal, facilitating interoperability with microcontrollers. The module is equipped with 5 mm screw terminals, a 3-pin JST SH connector, and LEDs to indicate operation. Pololu 5662

A compact Omron G5LE-14-DC12 relay module that allows you to control loads up to 10 A with a coil voltage of 12 V. Thanks to the BSS138K MOSFET transistor, it can be activated by a 2.5 V to 20 V logic signal, facilitating interoperability with microcontrollers. The module is equipped with 5 mm screw terminals, a 3-pin JST SH connector, and LEDs to indicate operation. Pololu 5663

RJ45 plug covers by Lanberg in white, available in a pack of 100, provide protection for network connectors against mechanical damage and contamination. Made of durable PVC, they are suitable for LAN cables with an outer diameter of up to 5.5 mm, making them an ideal solution for professional network installations.

Power cord with a built-in Power Delivery (PD) trigger with a working voltage of 9 V. Has a USB type C connector and a DC plug 5.5x2.5 mm. Length 3 m

DIP socket, 32-pin, precision, pitch 2,54mm, spacing 15,24mm, RoHS

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

RJ45 socket Cat 5 with shielding and LED indicator for THT mounting, designed for network devices requiring optical connection status signaling. The 90° angled design facilitates integration on PCBs in space-constrained layouts.