ST25R3911B NFC development kit - Waveshare 17623

EC200U‑EU C4‑P01 is an economical and functional board for developing IoT solutions with LTE Cat‑1 connectivity, GNSS positioning, and optional Bluetooth. With support for QuecPython, HAT compatibility, and a rich set of indicators and connectors, it serves as an excellent foundation for monitoring, telemetry, and mobile communication applications.

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

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.

Evaluation Kit with Bluetooth 5.0 BT401. It is equipped with a microSD slot, microUSB connector and two audio outputs. DFRobot DFR0782

LED 5 mm green (Green Diffused), angle 60 degrees; light intensity 1500 mcd (20mA) (2.25V); df 568nm

Rectangular TFT display with a 3.2" screen and a resolution of 320x820 pixels. It uses the ST7701S controller. For control, it requires a system with high computing power and an appropriate amount of memory. Adafruit 5828

OSD (On-screen Display) module dedicated to FireBeetle boards. It allows you to add subtitles and graphics to the image downloaded from the camera. DFRobot DFR0515

Laser scanner measuring 360 degrees, taking samples at a frequency of up to 5 kHz. It is capable of generating 2D point map information within a 12-meter radius. Waveshare D500 LiDAR Kit

Prototype contact plate 170 points 35x47 mm in white color. PPS0170 WHITE

SYN115/SYN480R set enables the implementation of 433 MHz wireless communication in DIY projects and microcontroller systems. It is suitable for applications in remote control systems, home automation, and data transmission between devices.

DIP Switch with two sections, made in THT technology, with angular setting and a raster of 2.54 mm. It has a height of 9.90 mm. DIP-SWITCH 02

Finder 41.81.7.024.8240 is a solid-state relay (SSR) with one normally open contact (SPST-NO), capable of handling a maximum load current of 3 A and a load voltage range of 12–275 V AC. It is controlled by a 24 V DC input voltage and designed for PCB mounting, featuring compact dimensions of 29 x 12.7 x 15.7 mm.

The TXS0104E is a 4-bit bidirectional voltage level translator, ideal for open-drain and push-pull applications, capable of translating voltages from 1.65 V to 3.6 V on port A and from 2.3 V to 5.5 V on port B. Thanks to its design, it does not require a directional control signal or power supply sequence, ensuring high immunity to electromechanical interference and ESD protection in accordance with IEC 61000-4-2 standards.

Module with MOSFET transistor, 5-36 V, 20 A, switching frequency 1 kHz. DFRobot DFR0457

Cable with USB type A and USB type C 2.0 plugs, cable length 1 m