Shield designed for IoT applications with LTE CAT M1/NB-IoT SARA-R4 modem. The board is compatible with Arduino, allows you to add communication via cellular networks to Arduino boards. SparkFun CEL-14997

An adapter for signal analysis during data transfer to a microSD card. The adapter allows you to connect a signal analyzer or other device in parallel to the system working with a microSD card. SparkFun TOL-09419

The module for the RFID reader (125 kHz) is equipped with a USB interface. Works with ID-3LA, ID-12LA and ID-20LA series systems. The selected RFID reader is simply plugged into the module\'s connectors. SparkFun SEN-09963

E-Ink display module (ePaper) with a diagonal of 2.9 "and a resolution of 296 x 128 pixels with a SPI controller. Waveshare 13339

Module with 6 QTRX type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4346

A compact and powerful ESC speed controller designed for RC models and FPV racing, supporting 4S–8S LiPo batteries and a constant current of 60 A (instantaneous up to 70 A). With a 20x20 mm mounting standard, it ensures durability, reliability and easy integration even in limited space. The use of AM32 software and variable PWM frequency guarantees high precision and smooth operation of the motors in all conditions. F60A mini

Mini SPDT type end switch with lever length 13.5mm and current capacity of 1A contacts. Pololu 1528

Module with 6 QTR type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4106

Module with 2 QTRX type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 30 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4342

Module with 9 QTR type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4109

Module with 9 QTR type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4209

Module with 9 QTRX type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4309

Wire Light LED Strand - 12 Cool White LEDs + Coin Cell Holder. Adafruit 894

Patchcord UTP 5E Ethernet cable with a length of 3 m - blue, with 2xRJ45 connectors

IPS 5" round LCD display with touch panel. It is equipped with HDMI for video display and USB Type C for touchscreen. It has a resolution of 1080 x 1080 pixels. Waveshare 5inch 1080x1080 LCD

Non-invasive AC Current Sensor, 100A, YHDC, RoHS

PS/2 adapter with a connector for connecting a keyboard and a mouse via USB. Allows you to use older generation HID devices, including with minicomputers with only a USB connector. Adafruit 971

Module with 5 QTR type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4245

Module with 5 QTRX type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4345

Module with 5 QTRX type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4445